Thematische Bibliographien / Zinc evaporation

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Auswahl der wissenschaftlichen Literatur zum Thema „Zinc evaporation“

Autor: Grafiati

Veröffentlicht am 28. Juni 2021

Zuletzt aktualisiert am 1. Februar 2022

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Zeitschriftenartikel zum Thema "Zinc evaporation"

Khalsa, Kawal Preet Singh, und Sayan Sadhu. „Experimental Study of Domestic Refrigerator Performance Improvement with Evaporative Condenser“. International Journal of Air-Conditioning and Refrigeration 29, Nr. 02 (28.04.2021): 2150015. http://dx.doi.org/10.1142/s2010132521500152.

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Evaporation of defrosted water in household refrigerators and condenser waste heat utilization has been reported by many researchers but limited literature is available on the study of evaporative cooling in domestic refrigerators (condenser waste heat utilization for defrost water evaporation) with helical coil heat exchangers. This paper is concerned with evaluating domestic refrigerator performance by employing an evaporative helical coil heat exchanger before hot wall condenser which is utilized for evaporation of defrost water and reducing the superheated refrigerant temperature to condensing temperature to reduce the condenser load and improve the overall performance of a domestic refrigerator. Results show that evaporative cooling increases COP of the system by 25.3%, reduces the energy consumption of the refrigerator by 7.3% and the compressor run time by 10.6%. These experimental results also revealed that using two different thermal conductivity tube materials for evaporative helical coil condenser (Copper tube and Zinc coated steel tube) provided with less wall thickness (0.2[Formula: see text]mm) PVC coating results in good agreement for the same evaporation rate of defrosted water.

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Hino, Mitsutaka, Shei-bin Wang, Tetsuya Nagasaka und Shiro Ban-Ya. „Evaporation Rate of Zinc in Liquid Iron.“ ISIJ International 34, Nr. 6 (1994): 491–97. http://dx.doi.org/10.2355/isijinternational.34.491.

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HINO, Mitsutaka, Shei-bin WANG, Tetsuya NAGASAKA und Shiro BAN-YA. „Evaporation Rate of Zinc in Liquid Iron“. Tetsu-to-Hagane 80, Nr. 4 (1994): 300–305. http://dx.doi.org/10.2355/tetsutohagane1955.80.4_300.

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Xing, Y. J., Z. H. Xi, X. D. Zhang, J. H. Song, R. M. Wang, J. Xu, Z. Q. Xue und D. P. Yu. „Thermal evaporation synthesis of zinc oxide nanowires“. Applied Physics A 80, Nr. 7 (19.12.2003): 1527–30. http://dx.doi.org/10.1007/s00339-003-2388-x.

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Zhang, Mengxu, Jianli Li, Qiang Zeng und Qiqiang Mou. „An Experimental Study on the Reduction Behavior of Dust Generated from Electric Arc Furnace“. Applied Sciences 9, Nr. 17 (02.09.2019): 3604. http://dx.doi.org/10.3390/app9173604.

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To improve the utilization value of electric arc furnace dust (EAFD) containing zinc, the reduction behavior of non-agglomerate dust was investigated with carbon and ferrosilicon in an induction furnace. The experimental results show that when the temperature increases, the zinc evaporation rate increases. When the reducing agent is carbon, zinc evaporation mainly occurs in the range of 900–1100 °C. When the reducing agent is ferrosilicon, zinc begins to evaporate at 800 °C, but the zinc evaporation rate is 90.47% at 1200 °C and lower than 99.80% with carbon used as a reducing agent at 1200 °C. For the carbon reduction, the iron metallization rate increases with a rise in the temperature. When the reducing agent is ferrosilicon, with an increase in temperature, the metallization rate first increases, then decreases, and finally, increases, which is mainly due to the reaction between the metallic iron and ZnO. In addition, the residual zinc in the EAFD is mainly dispersed in the form of a spinel solution near the metallic phase.

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Liang, Shuang, Xiaoping Liang und Qian Tang. „Treatment of Secondary Dust Produced in Rotary Hearth Furnace through Alkali Leaching and Evaporation–Crystallization Processes“. Processes 8, Nr. 4 (28.03.2020): 396. http://dx.doi.org/10.3390/pr8040396.

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This paper presents the results of an experimental study on the extraction of KCl and the improvement of the zinc grade of secondary dust obtained from rotary-hearth-furnace secondary dust (RHF secondary dust) using alkali leaching (Na2CO3 solution) and evaporation–crystallization processes. The effects of the liquid–solid ratio and Na2CO3 content on the element leaching ratio in the alkali leaching process, as well as the effects of the volume–evaporation ratio and cooling temperature on KCl extraction in the evaporation–crystallization process, were investigated. The results showed that the optimum liquid–solid ratio was 6:1, and the optimum quantity of Na2CO3 was 1.5 times the basic quantity. The recovery ratio of zinc reached 95.23%, and the leaching ratio of K reached 79.01%. The experimental results of the evaporation–crystallization process demonstrated that the evaporation temperature was 80 °C, the volume evaporation ratio was 50%, the cooling temperature was 25 °C, and the mass fraction of K2O in the obtained crystals was 58.99%.

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Ding, Q. P., Q. Q. Cao, H. B. Huang, S. G. Yang, X. N. Zhao und Y. W. Du. „Zinc oxide microtubes prepared by optical thermal evaporation“. Journal of Physics D: Applied Physics 39, Nr. 1 (15.12.2005): 46–49. http://dx.doi.org/10.1088/0022-3727/39/1/008.

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Li, Hui Feng, Jian Wang, Yun Hua Huang und Yue Zhang. „Three-Dimensional Zinc Oxide Nanorod Networks“. Advanced Materials Research 79-82 (August 2009): 457–60. http://dx.doi.org/10.4028/www.scientific.net/amr.79-82.457.

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Three-dimensional (3D) ZnO nanorod networks were synthesized through the direct evaporation of metal zinc with high purity via a chymical evaporation deposition (CVD) method in Ar and O2 at 910 °C without any catalyst. The nanorod networks of as-synthesized ZnO were characterized using scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), and X-ray diffraction (XRD). The branches within one network show very regular orientation relationships: either perpendicular or parallel to each other. The nanorods follow a growth direction [0001]. Photoluminescence (PL) spectroscopy were measured at room temperature and showed the different PL features of other nanostructures. Two typical emission peaks at -401 nm and at 452-495 nm were observed. Specially, the emission peak at 452-495 nm includes four subordinate peaks.

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XING, Y. J., D. P. YU, Z. H. XI und Z. Q. XUE. „THERMAL EVAPORATION SYNTHESIS OF ZnO MICROSHELLS“. International Journal of Modern Physics B 19, Nr. 15n17 (10.07.2005): 2722–27. http://dx.doi.org/10.1142/s0217979205031596.

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We demonstrate the synthesis of zinc oxide microshells by thermal evaporation of ZnO and Zn powders. X-ray diffraction (XRD), scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HRTEM) observations reveal that the products are ZnO microshells with hollow cores, of which the wall thickness is about several hundred nanometers. The possible growth process is discussed.

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Abdulgafour, Hind I., Yushamdan Yusof, F. K. Yam und Hassan Zainuriah. „Growth of ZnO Nanostructures at Different Temperatures without Catalyst by Wet Thermal Oxidation Process“. Advanced Materials Research 620 (Dezember 2012): 132–36. http://dx.doi.org/10.4028/www.scientific.net/amr.620.132.

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In this study, an efficient method to achieve a wide range of high-quality zinc oxide (ZnO) nanostructures through zinc powder evaporation at different temperatures is developed. ZnO nanostructures could be synthesized on n-type silicon substrates by a simple thermal evaporation technique without a catalyst at 600°C, 700°C, 800°C, and 900°C. Samples are annealed in wet oxygen and ambient argon gases. Surface morphology, crystallinity, and optical properties of the ZnO nanostructures are examined by scanning electron microscopy and transmission electron microscope measurements, X-ray diffraction, and photoluminescence measurement.

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Dissertationen zum Thema "Zinc evaporation"

Aguilera, Luis 1972. „Experimental validation of a model predicting the evaporation rate of zinc in a transferred arc“. Thesis, McGill University, 2003. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=79991.

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A mathematical model has been developed to allow optimization and scale up of a metal evaporator as a function of plasma operating parameters such as composition and flow rate of the plasma gas, arc current, arc length as well as wall and crucible temperatures. The system argon-zinc has been chosen to validate and calibrate the output of the model simulations with experimental measurements. The plasma gas used in the system was argon, and the metal to be evaporated was zinc. The relatively low boiling point of zinc allowed more precise measurements of the boundary and operation conditions being examined. Experimental measurements of the evaporation rate of zinc at atmospheric pressure and steady state were compared with the predictions of the computational model over a broad range of plasma operating conditions and temperature boundary conditions. Measurements of temperature at different locations in the crucible were taken to obtain the crucible temperature profile; the range of current used was between 100 and 275 A; the plasma gas flow rate covered a range from 10.7 to 27.9 slpm while the arc length was varied from 3.0 to 5.2 cm.

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Kvapilová, Vendula. „Vliv uvolňování zinku při slinování na permeabilitu/indukčnost feritové keramiky“. Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2021. http://www.nusl.cz/ntk/nusl-444216.

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The diploma thesis is focused on the investigation of the effect of zinc release during ferritic sintering on the permeability/inductance of ferrite ceramics. The theoretical part deals with the position of ferrites among other ceramic materials. It describes the basic characteristics of ferrites, their crystal structure and finally the problems that are directly related to their production and which fundamentally affect the magnetic properties of ferrites. In the second part of the work, the influence of the temperature and time of sintering and the position of the cores in the furnace during firing on the loss of zinc from the sample and subsequently on the electromagnetic properties of the prepared test specimens from industrial raw material mixtures was investigated. These are initial experiments, which will be followed by further research aimed at eliminating the problem of zinc loss in the production of Mn-Zn ferrites.

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Nouvelot, Luc. „Evaluation et réalisation de miroirs diélectriques à profil d'indice continu et périodique (filtres rugates)“. Grenoble 1, 1993. http://www.theses.fr/1993GRE10069.

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Differentes methodes de calcul des proprietes optiques des couches minces optiques a profil d'indice continu sont presentees. Dans le cas des filtres rugates, l'utilisation de methodes analytiques a notamment permis un calcul des enveloppes des spectres ainsi que l'optimisation du profil d'indice. Un nouveau systeme de coevaporation sous vide a ete developpe pour realiser des filtres a profil d'indice continu. Des couches minces homogenes de zns, znse, mgf#2, ainsi que de zns-mgf#2 et de znfe-mgf#2 de differentes compositions ont ete realisees. Il apparait que le zns presente un probleme de condensation lorsqu'il est codepose avec du mgf#2, meme sur substrat froid. Le znse ne presente pas ce probleme lorsque celui-ci est majoritaire dans un melange realise a froid. Des filtres rugates a profil d'indice sinusoidal, comportant jusqu'a 20 periodes, ont ete realises en znse-mgf#2 depose sur substrat froid. Leurs spectres de reflexion et de transmission sont conformes aux simulations numeriques. Un atout important des filtres rugates par rapport aux multicouches a par ailleurs ete mis en evidence: les faibles contraintes dans les couches de melanges znse-mgf#2 et dans les filtres realises devraient autoriser la realisation de films epais, ce qui est une necessite pour la realisation de miroirs de faible largeur de bande

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Duris, Maxime. „Conception et réalisation de filtre optique multicouche à grand nombre de couches minces dans le domaine spectral de 0,3 à 15 µm“. Thesis, Rennes 1, 2020. https://ged.univ-rennes1.fr/nuxeo/site/esupversions/f003f6e9-b485-44df-92bc-46b0ed838e2f.

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Les filtres optiques à grand nombre de couches minces constituent un élément clé de la performance et de l’innovation des systèmes optiques. Les revêtements de surface dédiés à l’optique sont des vecteurs de recherche dans tous les secteurs industriels associés à l’optique. La conception et la réalisation des filtres optiques multicouches à grand nombre de couches minces opérant dans le moyen infrarouge de 2 µm à 15 µm sont la problématique de recherche de ces travaux de thèse. Dans cette thèse, l’accent a été mis sur l’étude, le déploiement, l’amélioration et l’optimisation des procédures de dépôt du Sulfure de Zinc (ZnS) et de Germanium (Ge). L’optimisation des constantes optiques du Germanium en fonction des paramètres de dépôt par la méthode des plans d’expériences est présentée et discutée. Un plan d'expérience a été utilisé pour étudier et optimiser les conditions de dépôt du Germanium. Ce plan d'expérience traitait 4 paramètres de dépôt : la vitesse de dépôt, le vide avant dépôt, la pression de dépôt et l'assistance ionique (IAD) Les résultats extraits du plan d’expérience comprennent les effets importants de la vitesse de dépôt, de l’assistance ionique de compactage et de leurs interactions, l’effet dissipatif du vide avant dépôt et de la pression de dépôt dans l'enceinte de dépôt sur l’énergie de croissance de la couche mince, et l’obtention d’un ensemble de conditions de dépôt optimisées pour réaliser des couches minces de Germanium avec un indice de réfraction le plus haut possible et un coefficient d’extinction le plus bas possible. Les mises en empilement des matériaux nous ont permis de réaliser plusieurs types de filtres optiques, des revêtements antireflets de 2 µm à 14 µm composés de 2 à 11 couches minces, un miroir à 10,6 µm en 9 couches minces ou bien un filtre dichroïque composé d'un miroir de 2 µm à 5 µm et d'un revêtement antireflet de 8 µm à 14 µm constitué de 29 couches minces. Nous avons pu étudier la fiabilité et la robustesse des couches minces des matériaux améliorés et optimisés
Optical filters with a large number of thin films are key elements in the performance and innovation of optical systems. The surface coatings dedicated to optics are vectors of research in all the industrial sectors associated with optics. The design and fabrication of multi-layer optical filters with large number of thin layers with applications in the mid-Infrared spectral range (from 2 µm to 15 µm) are the research problem of this thesis work. In this thesis, the focus was placed on the study, deployment, improvement and optimization of the deposition procedures of Zinc Sulphide (ZnS) and Germanium (Ge). The optimization of the optical constants of Germanium according to the deposition parameters by the design of experiments method is presented and discussed. A design of experiments (DOE) was used to study and optimize Germanium’s deposition conditions, the experiment plan dealt with 4 deposition parameters: deposition speed, pre-deposition vacuum, deposition pressure and ion assisted support (IAD). The results extracted from the DOE include the significant effects of deposition rate, IAD and their interactions, the dissipative effect of pre-deposition vacuum and deposition pressure in the deposition chamber on the growth energy of the thin layer, and a set of deposition conditions optimized to achieve thin layers of Germanium with the highest possible refractive index and extinction coefficient. The stacking of Ge and ZnS thin layers enabled us to fabricate several types of optical filters namely an antireflective coatings from 2 µm to 14 µm composed of 2 to 11 thin layers, a 9 thin-layers mirror at 10,6 µm or a dichroic filter consisting of a 2 µm to 5 µm mirror and an 8 µm to 14 µm antireflective coating consisting of 29 thin-film. Furthermore, we were able to study the reliability and robustness of the thin layers of improved and optimized materials

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Rouxel, Yann. „Coévaporation avec masquage mécanique de ZnSe et de LaF3, pour la réalisation de couches minces à profils d'indice continus périodiques“. Université Joseph Fourier (Grenoble), 1996. http://www.theses.fr/1996GRE10096.

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Dans une etude theorique des structures a profil d'indice continu, il est montre que l'essentiel des proprietes spectrales des filtres a profil d'indice sinusoidal peut etre etudie de maniere analytique a partir de certaines proprietes de l'equation de mathieu. L'etude experimentale de ces structures a ete realisee a l'aide d'une technique de coevaporation par masquage mecanique. L'equipement de depot realisant la coevaporation a ete developpe pour permettre la realisation de couches sur substrat chaud pour des profils d'indice quelconques. Un systeme de mesure optique multispectral in-situ en reflectivite a egalement ete mis au point. Les proprietes des couches minces de melanges de znse et de laf3 ont ete etudiees pour toute la gamme de composition. Un schema d'evolution de la structure cristalline et de la porosite des couches en fonction de leur composition est propose. Les contraintes qui s'y developpent sont aussi analysees ainsi que leur evolution en fonction de l'environnement. L'etude des proprietes optiques a permis de definir les lois de melange ainsi que de mettre en evidence l'existence d'une birefringence evoluant avec la composition des melanges. Enfin, plusieurs types de structures periodiques ont ete realisees, comportant jusqu'a 20 periodes pour une epaisseur superieure a 5m. Les resultats ont permis de montrer que la modulation par masquage mecanique est une technique fiable et precise et que c'est le choix du couple de materiaux qui va conditionner la precision du controle du profil d'indice

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Nunes, Marilia dos Santos. „Obtenção de ZnO nanoestruturado e caracterização de propriedades e atividade fotocatalítica“. reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2010. http://hdl.handle.net/10183/27255.

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Este trabalho versou sobre a obtenção de partículas nanoestruturadas de ZnO pela técnica de evaporação térmica a partir de zinco metálico. Basicamente, a síntese ocorria em um reator de quatzo colocado em um forno tipo mufla, onde o zinco metálico reagia com uma atmosfera oxidante, proporcionada pela injeção de ar comprimido. Inicialmente, o forno era aquecido a temperaturas que variaram de 850 a 1050°C. Posteriormente, a amostra de zinco metálico era inserida na zona de aquecimento no interior do tubo, em quantidade de 2,5g, 5g, 10g, 20g e 30g. A injeção de argônio (99,99% de pureza), para o transporte das partículas de ZnO para fora da zona de reação, ocorria com um fluxo de 1 a 5L/min. O tempo de reação foi controlado e as regiões de ocorrência das reações variadas. Após o término das reações, o forno era resfriado à temperatura ambiente para a realização da coleta das amostras. A pressão utilizada durante as reação foi a pressão atmosférica. O material produzido foi analisado para a caracterização da estrutura cristalina (por difração de raios-x), morfologia (por microscopia eletrônica de varredura e transmissão, com auxílio do software Image Tool para a estimativa de tamanho de partícula) e área superficial (método BET). O band gap do ZnO foi determinado por análise de transmitância, refletância e absorbância, utilizando um espectrofotômetro com acessório de refletância difusa, através de medidas de refletividade de infravermelho difuso no pó óxido de zinco. Os dados de absorção foram calculados em função de Kubelka-Munk. A atividade fotocatalítica foi avaliada através do processo de degradação de uma solução de alaranjado de metila em um reator fotoquímico de iluminação UVA, com sua descoloração sendo observada através da espectroscopia UV-Vis. As partículas nanoestruturadas de ZnO produzidas tiveram suas características influenciadas pelos parâmetros de síntese. A morfologia variou desde formas aciculares a tetrápodes. As dimensões variaram de 1130nm a 17nm, conforme a dimensão (comprimento, largura) considerada. A avaliação da atividade fotocatalítica indicou um comportamento bastante similar ao ZnO comercial utilizado como padrão, o que pode ser explicado pela área superficial e valores de band gap. No entanto, não foi possível encontrar a mesma correlação em outros resultados, sendo então suposto uma fotocorrosão, como fenômeno de degradação da atividade fotocatalítica de ZnO, a exemplo do relatado na literatura por outros autores.
This work investigates nanostructured ZnO particles obtained by the technique of thermal evaporation from zinc metal. Basically, the synthesis occurred in a quartz reactor placed in a muffle furnace, where the zinc metal reacted with an oxidizing atmosphere, provided by the injection of compressed air. Initially, the furnace was heated to temperatures varying from 850 to 1050 º C. Subsequently, the sample of zinc metal was inserted into the heating zone inside the tube, in an amount of 2.5 g, 5g, 10g, 20g and 30g. The injection of argon (99,99% purity) for the transport of ZnO particles out of the reaction zone, occurred with a flow of 1 to 5 L/min. The reaction time was controlled and the regions of occurrence of the reactions varied. Upon completion of the reaction, the furnace was cooled to room temperature to perform the sample collection. The pressure used during the reaction was the atmospheric pressure. The material produced was analyzed to characterize the crystal structure (by x-ray diffraction), morphology (by scanning electron microscopy and transmission, with the help of the software Image Tool for estimation of particle size) and surface area (method BET). The band gap of ZnO was determined by transmittance, reflectance and absorbance analysis using a spectrophotometer with diffuse reflectance accessory, by reflectivity measurements of infrared diffuse in the zinc oxide powder. The absorption data were calculated according to Kubelka-Munk. The photocatalytic activity was evaluated through the degradation process of a solution of methyl orange in a photochemical reactor of UVA light, with its discoloration observed by UV-Visible spectroscopy. The particles of ZnO nanostructured produced had characteristics influenced by the parameters of synthesis. The morphology varied from needle-like forms to tetrapods. The size varied from 1130 nm to 17 nm, depending on the dimension (length, width) considered. The evaluation of photocatalytic activity showed a pattern quite similar to commercial ZnO used as standard, which can be explained by surface area and band gap values. However, we could not find the same correlation in other results, and then assumed a photocorrosion, as a phenomenon of degradation of the photocatalytic activity of ZnO, like the reported in the literature by other authors.

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Tsai, Wei Tao, und 蔡維道. „The Study of Copper-Zinc-Tin-Sulfide Thin Film Prepared by Evaporation and Sulfurisation“. Thesis, 2014. http://ndltd.ncl.edu.tw/handle/17815306951236066473.

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„electron beam irradiation damage on ZnS nanostructures synthesized by hydrothermal and thermal evaporation methods“. 2007. http://library.cuhk.edu.hk/record=b5893505.

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Xu, Yeming = 水熱法和熱蒸法製備硫化鋅納米结构的電子輻射損傷研究 / 徐業明.
Thesis (M.Phil.)--Chinese University of Hong Kong, 2007.
Includes bibliographical references (leaves 61-63).
Text in English; abstracts in English and Chinese.
Xu, Yeming = Shui re fa he re zheng fa zhi bei liu hua xin na mi jie gou de dian zi fu she sun shang yan jiu / Xu Yeming.
Abstract --- p.i
摘要 --- p.ii
Acknowledgment --- p.iii
List of Figures --- p.VII
Table of contents --- p.XI
Chapter Chapter 1 --- Introduction --- p.1
Chapter Chapter 2 --- Background of electron beam irradiation --- p.4
Chapter 2.1 --- Basic principles of electron beam irradiation --- p.4
Chapter 2.1.1 --- Atomic displacement --- p.5
Chapter 2.1.2 --- Electron beam sputtering --- p.7
Chapter 2.1.3 --- Electron beam heating --- p.8
Chapter 2.1.4 --- Radiolysis --- p.11
Chapter Chapter 3 --- Instrumentation --- p.13
Chapter 3.1 --- X-ray photoelectron spectroscopy (XPS) --- p.13
Chapter 3.1.1 --- Basic principles --- p.13
Chapter 3.1.2 --- Chemical shifts in x-ray photoelectron spectroscopy --- p.16
Chapter 3.2 --- The principle of the Scanning Electron Microscopy (SEM) --- p.16
Chapter 3. 3 --- Transmission Electron Microscope (TEM) --- p.19
Chapter 3. 3.1 --- Principle of the TEM --- p.19
Chapter 3.3.2 --- Electron specimen interaction in TEM --- p.21
Chapter 3.3.3 --- Electron Diffraction --- p.22
Chapter 3.3.4 --- Contrast --- p.22
Chapter 3.4 --- Energy dispersive x-ray spectroscopy --- p.23
Chapter 3.5 --- Elemental mapping using Electron Energy Loss Spectrometer (EELS) --- p.24
Chapter Chapter 4 --- Structure Degradation of ZnS Nanomaterials Synthesized via Hydrothermal Method --- p.26
Chapter 4.1 --- Experimental --- p.26
Chapter 4.2 --- Structure degradation of ZnS nanotubes synthesized via hydrothermal method --- p.27
Chapter 4.2.1 --- Chemical and structural characterization of the as-synthesized nanotubes --- p.27
Chapter 4.2.2 --- Crystallinity and structural degradation of the nanosheet under the electron beam irradiation --- p.29
Chapter 4.2.3 --- Nanotube structure degradation with different experimental parameters --- p.33
Chapter 4.3 --- Structure degradation of ZnS nanosheets synthesized via hydrothermal method --- p.34
Chapter 4.3.1 --- Chemical and morphological characteristics of the ZnS nanosheets --- p.34
Chapter 4.3.2 --- Crystallinity and structural degradation of the nanosheet under the electron beam irradiation --- p.37
Chapter 4.3.3 --- Nanosheet structure degradation with different experimental parameters --- p.41
Chapter 4.3.4 --- Discussion on the damage mechanisms --- p.45
Chapter Chapter 5 --- Structure Degradation of ZnS Nanobelts Synthesized via thermal evaporation Method --- p.48
Chapter 5.1 --- Experimental --- p.48
Chapter 5.2 --- Chemical and morphological characteristics of the ZnS nanobelts --- p.49
Chapter 5.3 --- Crystallinity and structural degradation of the nanobelt under the electron beam irradiation --- p.50
Chapter 5.4 --- Nanobelt structure degradation with different experimental parameters --- p.55
Chapter 5.5 --- Discussion on the damage mechanisms --- p.56
Chapter Chapter 6 --- Conclusion --- p.59
References --- p.61

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Yuvaraj, D. „Studies On The Growth And Characterization Of II-VI Semiconductor Nanostructures By Evaporation Methods“. Thesis, 2009. http://hdl.handle.net/2005/1037.

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In recent years, there has been growing interests on II-VI semiconductor nanostructures, which are suitable for applications in electronics and optoelectronic devices such as solar cells, UV lasers, sensors, light emitting diodes and field emission displays. II-VI semiconductor nanostructures with different morphologies such as wires, belts, rods, tubes, needles, springs, tetrapods, plates, hierarchical structures and so on, have been widely grown by vapor transport methods. However the process conditions used for the growth of nanostructures still remains incompatible for device fabrication. The realization of practical nanoscale devices using nanostructured film depends mainly on the availability of low cost and lower processing temperatures to manufacture high purity nanostructures on a variety of substrates including glass and polymer. In this thesis work, studies have been made on the growth and characterization of II-VI semiconductor nanostructures prepared at room temperature, under high vacuum, without employing catalysts or templates. (i) ZnO nanostructured films with different morphology such as flowers, needles and shrubs were deposited at room temperature on glass and polymer substrates by plasma assisted reactive process. (ii) Zn/ZnO core/shell nanowires were grown on Si substrates under optimized oxygen partial pressure. Annealing of this core shell nanowire in high vacuum resulted in the formation of ZnO nanocanals. (iii) ZnS and ZnSe nano and microstructures were grown on Si substrates under high vacuum by thermal evaporation. The morphology, structural, optical properties and composition of these nano and microstructures were investigated by XRD, SEM, TEM, Raman, PL and XPS. The growth mechanism behind the formation of the different nanostructures has been explained on the basis of vapour-solid (VS) mechanism.

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Hsieh, Ming-Hao, und 謝明浩. „Structural properties of copper-zinc-tin-sulfur (CZTS) thin film fabricated by co-evaporation method“. Thesis, 2013. http://ndltd.ncl.edu.tw/handle/93933273811371970805.

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碩士
逢甲大學
光電學系
101
In this study, the copper-zinc-tin-sulfuride (CZTS) thin-film was synthesized via co-evaporation and sequent sulfuration process. Copper, zinc and tin were used as the source for co-evaporation process. The sulfur powder was used for sulfuration process under high temperature 550 oC. The influence of sulfuration time (0.5 hr, 1 hr, 1.5 hr, 2 hr) on characteristic of CZTS thin-film was discussed. The morphology and compositional ratio of the as-fabricated CZTS thin-film was investigated used SEM and EDS, respectively. When the sulfuration time increases, the surface of CZTS thin-film is denser. In the XRD and Raman spectra of post-sulfurated sample, the purity CZTS crystalline phase was found. The band gap of the CZTS with sulfuration time 2 hr2 is around 1.2 eV in the photoluminescence spectra and the CZTS thin-film has the p-type semiconductor behavior in the Hall measurement.

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Buchteile zum Thema "Zinc evaporation"

Mita, K., T. Ikeda und M. Maeda. „Fundamental Study of Fe-Zn Intermetallic Compounds for Zinc Evaporation from Galvanized Steel Sheet“. In Recycling of Metals and Engineercd Materials, 261–69. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118788073.ch24.

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Konferenzberichte zum Thema "Zinc evaporation"

Joshi, Aditee, S. K. Gupta, Manmeet Kaur, J. B. Singh, J. V. Yakhmi, M. R. Singh und R. H. Lipson. „Growth Mechanism of Zinc Oxide Nanostructures by Carbothermal Evaporation Technique“. In TRANSPORT AND OPTICAL PROPERTIES OF NANOMATERIALS: Proceedings of the International Conference—ICTOPON-2009. AIP, 2009. http://dx.doi.org/10.1063/1.3183457.

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Rathod, J. R., H. S. Patel, K. D. Patel, V. M. Pathak, S. K. Tripathi, Keya Dharamvir, Ranjan Kumar und G. S. S. Saini. „Properties of Thin-Film Zinc Telluride Prepared By Thermal Evaporation“. In INTERNATIONAL CONFERENCE ON ADVANCES IN CONDENSED AND NANO MATERIALS (ICACNM-2011). AIP, 2011. http://dx.doi.org/10.1063/1.3653639.

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Islam, Md Shahidul, Md Faruk Hossain und Dilip Kumar Saha. „Experimental study of zinc oxide thin film fabricated by evaporation method“. In 2015 International Conference on Electrical Engineering and Information Communication Technology (ICEEICT). IEEE, 2015. http://dx.doi.org/10.1109/iceeict.2015.7307403.

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Bakar, Maria Abu, Muhammad Azmi Abdul Hamid, Siti Nuurul Fatimah Hasim, Roslinda Shamsudin, Mohamad Rusop und Tetsuo Soga. „The Effect of Substrate Position of Zinc Oxide Growth by Thermal Evaporation“. In NANOSCIENCE AND NANOTECHNOLOGY: International Conference on Nanoscience and Nanotechnology—2008. AIP, 2009. http://dx.doi.org/10.1063/1.3160198.

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Islam, M. S., M. F. Hossain, S. M. A. Razzak, M. M. Haque und M. N. I. Khan. „Zinc oxide thin film fabricated by thermal evaporation method for water splitting application“. In 2015 International Conference on Electrical & Electronic Engineering (ICEEE). IEEE, 2015. http://dx.doi.org/10.1109/ceee.2015.7428270.

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Sayeed, Md Abu, Hasan Khaled Rouf, Mohd Rezaul Hasan und K. M. A. Hussain. „Thickness Dependency of Zinc Selenide (ZnSe) Thin Film Deposited By Vacuum Evaporation Method“. In 2019 1st International Conference on Advances in Science, Engineering and Robotics Technology (ICASERT). IEEE, 2019. http://dx.doi.org/10.1109/icasert.2019.8934587.

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Suhaimi, Syahida, Samsudi Sakrani, Nadhrah Md Yatim und Mohd Azman Hashim. „The structural properties of Sn-doped zinc oxide synthesized by hot-tube thermal evaporation“. In RECENT ADVANCEMENT ON APPLIED PHYSICS, INDUSTRIAL CHEMISTRY AND CHEMICAL TECHNOLOGY: Proceedings of the International Conference on Recent Advancements in Science and Technology 2017 (ICoRAST2017). Author(s), 2018. http://dx.doi.org/10.1063/1.5041226.

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Falcao, V. D., M. E. L. Sabino, D. O. Miranda, A. S. A. C. Diniz und J. R. T. Branco. „Transparent conducting zinc oxide thin film prepared by electron beam evaporation technique with argon plasma assistance“. In 2008 33rd IEEE Photovolatic Specialists Conference (PVSC). IEEE, 2008. http://dx.doi.org/10.1109/pvsc.2008.4922879.

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Yongning, He, Zhang Songchang und Zhu Changchun. „Preparation and Characteristics of ZnO Nanowires Based on the Thermal Evaporation of Metal Zinc at Low Temperature1“. In 2006 19th International Vacuum Nanoelectronics Conference. IEEE, 2006. http://dx.doi.org/10.1109/ivnc.2006.335397.

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Nagarani, S., C. Sanjeeviraja, Alka B. Garg, R. Mittal und R. Mukhopadhyay. „Structural, Electrical and Optical Properties of Gallium Doped Zinc Oxide Thin Films Prepared by Electron Beam Evaporation Technique“. In SOLID STATE PHYSICS, PROCEEDINGS OF THE 55TH DAE SOLID STATE PHYSICS SYMPOSIUM 2010. AIP, 2011. http://dx.doi.org/10.1063/1.3605995.

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