To see the other types of publications on this topic, follow the link: Low-temperature Techniques.

Dissertations / Theses on the topic 'Low-temperature Techniques'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 46 dissertations / theses for your research on the topic 'Low-temperature Techniques.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Hopkins, S. C. "Optimisation, characterisation and synthesis of low temperature superconductors by current-voltage techniques." Thesis, University of Cambridge, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.604224.

Full text
Abstract:
The reaction-diffusion behaviour of bronze process Nb<sub>3</sub>Sn wires has been modelled, and good agreement has been obtained between predicted and measured compositions and Nb<sub>3</sub>Sn layer thicknesses for a wide range of isothermal heat treatments. Isothermal and two-stage heat treatments have been assessed for uniformity of Nb<sub>3</sub>Sn layer thicknesses and predicted critical current behaviour, and suggestions for optimising heat treatments and wire designs have been made. The electrical resistivity of bronze as a function of temperature and composition has been measured, and
APA, Harvard, Vancouver, ISO, and other styles
2

Georgiacodis, D. N. "Low temperature ion-irradiation effects in silicon studied by ion-channelling techniques." Thesis, University of Sussex, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.304345.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Lopez-Calvo, Alfredo Manzanares Carlos E. "Vibrational spectroscopy in cryogenic solutions application of thermal lensing and Fourier transform techniques to the study of molecular C-H overtone transitions /." Waco, Tex. : Baylor University, 2006. http://hdl.handle.net/2104/4873.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Abdullah, J. B. "The assessment of high temperature damage in 2.25 Cr - IMo low alloy steel using ultrasonic techniques." Thesis, Swansea University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.635833.

Full text
Abstract:
In petrochemical plants and power generating utilities, creep behaviour will affect the service life of components operating at elevated temperatures and stresses. Non-destructive techniques which detect creep damage are therefore important for assessing the remaining service life of the affected components. Whilst various non-destructive techniques have been reported, further studies are necessary to refine and assess the potential of these techniques for quantitative measures to be used for residual life-time prediction. In this thesis, the use of ultrasonic techniques to quantify creep cavi
APA, Harvard, Vancouver, ISO, and other styles
5

Spalholz, Hans. "Development of Short Term Storage Techniques for Grafted Vegetable Seedlings." Thesis, The University of Arizona, 2013. http://hdl.handle.net/10150/293734.

Full text
Abstract:
Vegetable grafting confers soil-borne disease resistance through the use of selected rootstocks. Additional costs associated with grafted vegetable seedling propagation limit grower access to this technology. The use of low temperature storage in grafted seedling production reduces labor costs and allows propagators to meet the seasonal and narrow-window demand of growers. For the first part of the experiment 22 genotypes of Solanaceae or Cucurbitaceae seedlings were evaluated in low temperature storage conditions (5 or 12°C). Seedling performance was better in 12°C storage than in 5°C storage
APA, Harvard, Vancouver, ISO, and other styles
6

Beale, Andrew Michael. "Novel low temperature preparation methods for mixed complex oxide catalysts and their characterisation via in situ SR techniques." Thesis, University College London (University of London), 2003. http://discovery.ucl.ac.uk/1453143/.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Thankaraj, Salammal Shabi [Verfasser]. "Structural and morphological investigations of Poly(3-alkylthiophene) thin films prepared by low and room temperature casting and spin coating techniques / Shabi Thankaraj Salammal." Siegen : Universitätsbibliothek der Universität Siegen, 2012. http://d-nb.info/1024804259/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Kadri, Mohammed. "Formation à basse température et nouvelles techniques de caractérisations [sic] du disiliciure de tungstène WSi2." Grenoble 1, 1987. http://www.theses.fr/1987GRE10053.

Full text
Abstract:
Le disiliciure wsi::(2) pour la metallisation d'un circuit vlsi (contacts et lignes d'interconnexion) est forme a une temperature aussi basse que possible en utilisant la structure "sandwich" a-si: h(150 a)/w(110 a)/a-si: h(540 a)/c-si implantee par des ions a faible courant et a temperature ambiante. La concentration residuelle d'oxygene dans les couches de w et de a-si:h et a leur interface a une influence decisive sur la formation et la resistivite de wsi::(2). Les plus faibles temperatures de formation de wsi::(2) atteintes sont les plus basses, 550**(o)c apres recuit, 350**(o)c apres impl
APA, Harvard, Vancouver, ISO, and other styles
9

Kermarrec, Edwin. "Nouveaux états quantiques de spin induits par frustration magnétique sur le réseau kagome." Phd thesis, Université Paris Sud - Paris XI, 2012. http://tel.archives-ouvertes.fr/tel-00783605.

Full text
Abstract:
La déstabilisation de l'ordre antiferromagnétique de Néel au profit de nouvelles phases quantiques à température nulle à deux dimensions est envisageable grâce au phénomène de frustration magnétique. Le modèle théorique de spins Heisenberg S=1/2 répartis sur le réseau bidimensionnel frustré kagome, constitué de triangles joints uniquement par leurs sommets, est susceptible de stabiliser des phases quantiques originales de liquides de spin, qui ne présentent aucune brisure de symétrie à T = 0. Cette thèse a été consacrée à l'étude expérimentale de deux types de composés de spins S=1/2 (Cu2+) à
APA, Harvard, Vancouver, ISO, and other styles
10

Grobler, Thelma. "Two-dimensional gas chromatography : a novel technique for iron low temperature Fischer-Tropsch selectivity studies." Master's thesis, University of Cape Town, 2008. http://hdl.handle.net/11427/5327.

Full text
Abstract:
Includes abstract.<br>Includes bibliographical references (leaves 158-178).<br>Fischer-Tropsch synthesis is a process that catalytically converts hydrogen and carbon monoxide into a large variety of hydrocarbons and oxygenated products. Over the years many researchers have attempted to describe the full product spectrum (ranging from C1 to C100+) but due to the complexity of the product and shortcomings of certain analytical techniques (or equipment) most researchers were only able to construct product distributions from extrapolations of data recorded from analysis of the C1 to C5 fraction of
APA, Harvard, Vancouver, ISO, and other styles
11

Miura, Masashi, Masakazu Itoh, Yusuke Ichino, et al. "Effect of Sm/Ba substitution on the J/sub c/ in magnetic field of SmBCO thin films by low temperature growth technique." IEEE, 2005. http://hdl.handle.net/2237/6778.

Full text
APA, Harvard, Vancouver, ISO, and other styles
12

Zheng, Hanguang. "Processing and Properties of Die-attachment on Copper Surface by Low-temperature Sintering of Nanosilver Paste." Thesis, Virginia Tech, 2012. http://hdl.handle.net/10919/42658.

Full text
Abstract:
As the first level interconnection in electronic packages, chip attachment plays a key role in the total packaging process. Sintered nanosilver paste may be used as a lead-free alternative to solder for die-attachment at sintering temperature below 300 °C without applying any pressure. Typically, the substrate, such as direct bond copper (DBC) substrates, has surface metallization such as silver or gold to protect the copper surface from oxidation during the sintering process. This study focused on developing techniques for die-attachment on pure copper surface by low-temperature sintering of
APA, Harvard, Vancouver, ISO, and other styles
13

Amro, Raed. "Power cycling capability of advanced packaging and interconnection technologies at high temperature swings." Doctoral thesis, [S.l. : s.n.], 2006. https://monarch.qucosa.de/id/qucosa%3A18552.

Full text
APA, Harvard, Vancouver, ISO, and other styles
14

Xiao, Kewei. "A diffusion-viscous analysis and experimental verification of the drying behavior in nanosilver-enabled low-temperature joining technique." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/25137.

Full text
Abstract:
The low-temperature joining technique (LTJT) by silver sintering is being implemented by major manufacturers of power electronics devices and modules for bonding power semiconductor chips. A common die-attach material used with LTJT is a silver paste consisting of silver powder (micron- or nano-size particles) mixed in organic solvent and binder formulation. It is believed that the drying of the paste during the bonding process plays a critical role in determining the quality of the sintered bond-line. In this study, a model based on the diffusion of solvent molecules and viscous mechanics of
APA, Harvard, Vancouver, ISO, and other styles
15

Ichino, Yusuke, Yutaka Yoshida, Kouichi Inoue, et al. "Effect of BaZrO3 Addition and Film Growth on Superconducting Properties of (Nd,Eu,Gd)Ba2Cu3Oy Thin Films." IEEE, 2009. http://hdl.handle.net/2237/13894.

Full text
APA, Harvard, Vancouver, ISO, and other styles
16

Poole, Warren J., Matthias Militzer, J. Huang, S. C. Vogel, and C. Jacques. "The study of low-temperature austenite decomposition in a Fe–C–Mn–Si steel using the neutron Bragg edge transmission technique." Elsevier, 2007. http://hdl.handle.net/2429/397.

Full text
Abstract:
A new technique based on the study of the transmitted neutron beam has been developed to study the low-temperature decomposition of austenite in a 0.4 wt.% C–3 wt.% Mn–2 wt.% Si steel. Experiments were conducted in which the neutron beam continuously passed through a specially designed layered sample, the temperature of which could be controlled to allow for a high-temperature austenization treatment followed by accelerated cooling to an isothermal transformation temperature in the range of 275–450 °C. It was possible to measure the volume fraction of the face-centred cubic (fcc) and body-cent
APA, Harvard, Vancouver, ISO, and other styles
17

Venclíková, Michaela. "Využití pěnoasfaltu v asfaltových směsích." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-372058.

Full text
Abstract:
In this diploma thesis there are described the issues use of foamed bitumen as binder in asphalt mixtures. The thesis is divided into two parts, theoretical and practical. The aim of theoretical part was to elaborate an overview of technologies, which allow to reduce the temperature during the production and laying of asphalt mixtures. The aim of the practical part was to compare the selected empirical and functional parameters of two types of asphalt mixtures produced in two variants, with hot bitumen and foamed bitumen. Attention was paid mainly to stiffness and low temperature parameters.
APA, Harvard, Vancouver, ISO, and other styles
18

Houbloss, Samir. "Detection thermique de l'absorption optique : developpement de la technique, informatisation, etudes d'elements 3d dans des materiaux iii-v." Clermont-Ferrand 2, 1988. http://www.theses.fr/1988CLF21078.

Full text
Abstract:
Developpement d'une technique nouvelle de detection de l'absorption optique, tres sensible aux basses temperatures. Construction d'un spectrometre equipe de differents cellules et informatise. L'appareillage a permis la detection des bandes et des raies a zero phonon associees a la presence du chrome, du vanadium et du titane dans les materiaux iii-v
APA, Harvard, Vancouver, ISO, and other styles
19

Casado, Mathieu. "Water stable isotopic composition on the East Antarctic Plateau : measurements at low temperature of the vapour composition, utilisation as an atmospheric tracer and implication for paleoclimate studies." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLV058/document.

Full text
Abstract:
Les carottes de glace permettent de reconstruire le climat du passé, à partir entre autre de la composition isotopique de l’eau (δ18O, δ17O et δD). Sur le plateau Est Antarctique, les températures très froides et les faibles accumulations permettent de remonter le plus loin dans le passé (jusqu’à 800 000 ans) mais compliquent l’interprétation du signal isotopique. Premièrement, les reconstructions des variations de température dans les carottes de glace à partir des isotopes de l’eau se basent sur des modèles pour décrire l'évolution de la composition isotopique de la vapeur et de la phase con
APA, Harvard, Vancouver, ISO, and other styles
20

Lin, Yan-Tsang, and 林彥滄. "Process- and Temperature-Compensated Techniques and Solar-Powered Techniques of Low-Noise Amplifiers." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/95157027375063136087.

Full text
Abstract:
碩士<br>國立高雄師範大學<br>電子工程學系<br>101<br>This thesis proposes the process- and temperature-compensated techniques and the solar-powered techniques of the low-noise amplifier (LNA). For process and temperature compensation, a body-bias technique is used to compensate the RF parameters of the LNA. This LNA is designed and implemented using the 0.18 μm CMOS standard process. For process compensation, the variation in noise figure (NF) is reduced from 0.8 dB to 0.2 dB and the variation in gain is reduced from 5.33 dB to 0.2 dB. For temperature compensation, the variation in noise figure (NF) is reduced
APA, Harvard, Vancouver, ISO, and other styles
21

Lee, Shin-De, and 李信德. "Low Temperature Bonding Techniques for Sealing Teflon Based Microfluidic Devices." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/66478814280063664162.

Full text
Abstract:
碩士<br>國立中山大學<br>機械與機電工程學系研究所<br>100<br>Microfluidics emerged during the early 1990s with channel networks in silicon or glass. Microprocessing of these materials is labor-intensive and time-consuming, it requires sophisticated equipment in a clean room, and often involves hazardous chemicals. The subsequent use of polymer greatly simplified the fabrication of microchips and led to the rapid development of the field. Polymer such as poly(dimethylsiloxane) (PDMS), has other attractive properties, such as being elastic (easy to make efficient microvalves), permeable to gases, and compatible with
APA, Harvard, Vancouver, ISO, and other styles
22

Chen, You Shen, and 陳宥伸. "Preparation of Perovskite Solar Cells Using Low-temperature Solution Processing techniques." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/f2tg2d.

Full text
Abstract:
碩士<br>長庚大學<br>光電工程研究所<br>104<br>Solar is a renewable energy, Power generation process does not produce greenhouse gases carbon dioxide emissions, for the protection of the environment is very helpful; from 2012 to the rapid progress of perovskite solar cells, compared with silicon solar cells, which have the advantages of low material cost, Preparation of solution method, low cost manufacturing process, and its photoelectric conversion efficiency of silicon solar cells is expected to catch up, many scientists have also invested in this research effort. Perovskite solar cells perovskite lay
APA, Harvard, Vancouver, ISO, and other styles
23

Lu, Wei Xin, and 盧維新. "Application of low-temperature deposition and high-temperature rapid thermal treatment techniques on the fabrication process of silicon gate oxides." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/25388417596047777464.

Full text
APA, Harvard, Vancouver, ISO, and other styles
24

Wang, Shen-De, and 王獻德. "Study on Fluorine Passivation Techniques and the Reliability for Low Temperature Polycrystalline Silicon Thin-Film Transistors." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/83465719750608671993.

Full text
Abstract:
博士<br>國立交通大學<br>電子工程系所<br>94<br>In this thesis, various fluorine passivation techniques for fabricating high-performance and high-reliability polycrystalline silicon thin-film transistors (poly-Si TFTs) are proposed and discussed. In addition, the On-current (Ion) and Off-current (Ioff) instabilities of poly-Si TFTs under electrical stress are thoroughly investigated. At last, a new scheme by employing high-resolution scanning capacitance microscopy (SCM) is developed to scan the breakdown spots on oxide films. First, a process-compatible CF4 plasma treatment for fabricating high-performance s
APA, Harvard, Vancouver, ISO, and other styles
25

Hu, Shen-Chih, and 胡慎知. "The Study of Resource Recycling of Sludge by Low-Temperature Co-melting and Surface Modified Techniques." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/33371822772130335997.

Full text
Abstract:
博士<br>國立東華大學<br>材料科學與工程學系<br>101<br>Sewage sludge is produced by urban waste water treatment. Because of the perishable organic substances, sludge disposal without advanced treatment can produce public health problem. Lightweight aggregate synthesized with sewage sludge is a feasible method for sludge recycling and natural constructive materials saving, but the sintering temperature is always over 1000 oC to form melting glassy phase and large energy is consumed. This study focused on adding some low melting point compounds (H3BO3 and Na2CO3) as flux in order to lower the sintering temperature
APA, Harvard, Vancouver, ISO, and other styles
26

Shye, Der-Chi, and 史德智. "Low-Temperature Processing Techniques Applied on Barium Strontium Titanate Films for the Applications of DRAM Storage Capacitors." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/85373278879314570415.

Full text
Abstract:
博士<br>國立交通大學<br>電子工程系所<br>93<br>The characteristics of (Ba, Sr)TiO3 thin films, prepared by novel techniques of low temperature treatments, were systematically studied in this thesis. Pt/TiN/Ti/Si substrates were applied on each sample to simulate the real capacitor over bit-line (COB) structure of dynamic random access memory (DRAM). (Ba, Sr)TiO3 (BST) films were sputtered by radio frequency (RF) magnetron system with dual targets at low substrate temperature, lower than 450oC (340oC at sample surface), and the effects of the process parameters were also investigated. The work pressure, the s
APA, Harvard, Vancouver, ISO, and other styles
27

Wang, jui-hao, and 王瑞豪. "Fabrication of Low-Temperature Poly-Si Thin-Films Using Hot-Wire CVD and Al-induced Crystallization Techniques." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/99574835223515040275.

Full text
Abstract:
碩士<br>國立中興大學<br>材料工程學研究所<br>93<br>The study utilized hot-wire chemical vapor deposition (HWCVD) which mixed different ratio of SiH4 and H2 to deposit Si-film rapidly and also used aluminum-induced crystallization (AIC) to fabricate high-quality polycrystalline silicon (poly-Si) films which served as a seed layer and accumulated large grain poly-Si films quickly above the seed layer. The purpose of the study was to investigate the change of AIC thin films due to different annealing time and temperature, and to further analyze characteristics by X-ray diffraction (XRD), Raman spectroscopy diffra
APA, Harvard, Vancouver, ISO, and other styles
28

Krywko-Cendrowska, Agata. "Low temperature, electrochemical deposition of silicon based films and their characterization by electrochemical, spectroscopic and microscopic techniques." Doctoral thesis, 2014. https://depotuw.ceon.pl/handle/item/952.

Full text
Abstract:
The goal of the PhD thesis was electrochemical deposition and characterization of the photoactive in aqueous solutions SiOx films for potential applications as a photoanode material. The experimental work of the thesis included electrodeposition of SiOx layers and their spectroscopic and microscopic analysis, photoelectrochemical characterization and optimization of the deposition conditions (potential and time of the deposition, type of the substrate, concentration of the SiHCl3 precursor) in order to obtain the highest photocurrent density in the studied systems. The SiOx layers were depos
APA, Harvard, Vancouver, ISO, and other styles
29

"Analyzing Techniques for Increasing Power Transfer in the Electric Grid." Master's thesis, 2012. http://hdl.handle.net/2286/R.I.15926.

Full text
Abstract:
abstract: The worldwide demand for electric energy is slated to increase by 80% between the years 1990 and 2040. In order to satisfy this increase in load, many new generators and transmission lines are planned. Implementations of various plans that can augment existing infrastructure have been hindered due to environmental constraints, public opposition and difficulties in obtaining right-of-way. As a result, stress on the present electrical infrastructure has increased, resulting in congestion within the system. The aim of this research is to analyze three techniques that could improve the p
APA, Harvard, Vancouver, ISO, and other styles
30

Hayes, Briana. "Elimination of parasites using non-thermal and low temperature techniques and effect on chemical and sensory quality of raw oysters." 2006. http://purl.galileo.usg.edu/uga%5Fetd/hayes%5Fbriana%5Fk%5F200608%5Fms.

Full text
APA, Harvard, Vancouver, ISO, and other styles
31

Serrazina, Ricardo Nazaré. "Flash sintering of lead free perovskite oxides towards sustainable processing of materials for energy and related applications." Doctoral thesis, 2021. http://hdl.handle.net/10773/32637.

Full text
Abstract:
Piezoelectrics as K0.5Na0.5NbO3 (KNN) have currently an emerging importance due to their lead-free nature and high transition temperature, which permits a wide range of high-tech applications as sensors, actuators, energy harvesters, biosensors, etc. However, monophasic dense KNN products are yet difficult to obtain, due to the high temperature and long time of conventional sintering processes. This PhD proposes a new method to densify materials abruptly above a threshold condition using FLASH sintering, where the densification occurs by a combination of furnace environment (temperatur
APA, Harvard, Vancouver, ISO, and other styles
32

Fernandes, Bruno João Baptista. "pMOSFET fabrication using a low temperature pre-deposition technique." Master's thesis, 2016. http://hdl.handle.net/10362/20677.

Full text
Abstract:
The objective of this work was to develop a fully functional pMOSFET using a new method for dopant pre-deposition done at low temperature (90ºC) using PECVD. This technique has many advantages when compared to the traditional manufacturing method, namely it is more cost effective, simpler and faster. Because it does not require an oxide layer to create the patterns, it can be conjugated with other low temperature techniques. To obtain a functional pMOSFET, this work was divided in four different studies. The objective of the first study was to achieve metal-semiconductor ohmic contacts. To ob
APA, Harvard, Vancouver, ISO, and other styles
33

Sheu, Jong-Long, and 許忠龍. "Deep Level Characterization of Low-Temperature GaAs by Photoreflectance Technique." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/08582353000214100877.

Full text
Abstract:
碩士<br>國立交通大學<br>電子物理系<br>87<br>Photoreflectance (PR) spectroscopy is an optical and non-destructive technique and is widely used to characterize electronic properties of semiconductor materials and structures. We applied PR method to measure the deep levels of low-temperature grown GaAs samples. By analyzing the transient response of PR spectrum amplitude to the modulation frequence, we can acquire the time constants of deep levels at various sample temperatures. The Arrhenius plot relating the measured time constants and sample temperatures provides the information of the ionization energies
APA, Harvard, Vancouver, ISO, and other styles
34

Lin, Pu-Chou, and 林莆洲. "Low-temperature Technique for High-efficiency Perovskite Hybrid Photovoltaic Devices." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/84984263513403614102.

Full text
Abstract:
碩士<br>國立中山大學<br>物理學系研究所<br>104<br>Due to the development of technology and gradual depletion of fossil fuels, the energy issue has received wide attention in this century. Solar energy is one of the best choices. Among many types of solar cells, perovskite solar cells suddenly appear on the horizon and the power conversion efficiency has been improved from 3 % to over 20 % in just 6 years. This makes many scholars who originally study in polymer and dye-sensitized solar cells start doing research about perovskite PVs. Halide perovskites have recently emerged as promising materials because
APA, Harvard, Vancouver, ISO, and other styles
35

Tseng, Huan-Chun, and 曾煥均. "Characterization of Low Temperature Poly Silicon TFTs with Laser Crystallization Technique." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/82450430811591421675.

Full text
Abstract:
碩士<br>國立交通大學<br>電機資訊學院碩士在職專班<br>93<br>It was extensively discussed the high-performance low temperature polycrystalline silicon (LTPS) application in monitor. In this thesis, many processes of crystallization means were discussed and the characterization of low temperature polycrystalline silicon (LTPS) thin film transistors (TFTs) were studied, in which the HF with the concentration of 0.1 percent was utilized by pre treatment clean process. Many methods and techniques had been proposed to further improve the performance of LTPS TFTs, which include means of prior clean treatment of amorphous
APA, Harvard, Vancouver, ISO, and other styles
36

Yang, Meng-Syuan, and 楊孟璇. "Study of Amorphous ZnO:Al Thin Films by Low-Temperature Sputtering Technique." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/5pt426.

Full text
Abstract:
碩士<br>國立中山大學<br>物理學系研究所<br>97<br>Aluminum doped zinc oxide AZO has been studied for 20 years. It can improve thin films’ thermal stability and transparency in visible range .However AZO is not as good as ITO in conductivity and transparency, that’s why the application of AZO is only limited in few fields. This is because the nature limit of ZnO. Because part of doped Al forms Al2O3 instead of sits on Zn sites, that enhances light and carriers scattering and suppresses the optical transparency and electric conductivity. This study is plane to take advantage of amorphous properties, that may be
APA, Harvard, Vancouver, ISO, and other styles
37

Kumar, Vikash. "Sb2Se3 thin-film solar cells via low-temperature thermal evaporation technique." Doctoral thesis, 2022. http://hdl.handle.net/11562/1069306.

Full text
Abstract:
There has been a lot of anomalies in the climate in recent years. The situation is getting worse with every passing day, this alarming situation is the talk of the town amongst the world’s scientific community. There has been a consistent search for cleaner and sustainable source of energy which can replace the conventional fossil fuel. To this date renewable energy such as solar, wind, ocean, hydrothermal are in application. Among these, solar photovoltaic (PV) is the most effective and widely used one due to its abundant availability and zero contribution to pollution. In order to harness th
APA, Harvard, Vancouver, ISO, and other styles
38

Chang, Chih-Pang, and 張志榜. "Investigation of Crystallization Technique for Low-Temperature-Processed Poly-Silicon Thin-Film-Transistor." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/895v2a.

Full text
Abstract:
碩士<br>國立虎尾科技大學<br>光電與材料科技研究所<br>93<br>The use of low-temperature processed polycrystalline silicon thin-film transistors (LTP poly-Si TFTs) as pixel active elements and in peripheral driver circuits has been an important issue in the development of active-matrix flat panel displays (AMFPDs). This thesis studies a number of crystallization techniques for the high performance LTP poly-Si TFTs to achieve system on panel. Firstly, we propose solid-state continue-wave laser (CW-laser) to crystallized poly-Si films, the distinction of excimer laser, CW-laser possessed high stability, reliability
APA, Harvard, Vancouver, ISO, and other styles
39

吳巧慧. "Characterization of application low-temperature BGe ion implantation technique in fabrication shallow-semiconductor devices." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/73066974397620512877.

Full text
APA, Harvard, Vancouver, ISO, and other styles
40

Chen, Yu-shiang, and 陳裕翔. "Simulation Characteristics of Surface Acoustic Wave Device Packaged Using Low Temperature Cofired Ceramic Technique." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/06082929939022140304.

Full text
Abstract:
碩士<br>義守大學<br>電機工程學系碩士班<br>93<br>Recently, as fast developing in global telecommunication and personal communication getting matured, wireless communication industry tends to become more and more activating. Everyday various products related to telecommunications come to market. In general, those products, no matter they are system level or component level, must satisfy high frequency, miniaturization, and modulization. Because surface acoustic wave (SAW) device could not to integrate on silicon wafer to this day, only low temperature cofired ceramic (LTCC) technology offers a platform to inte
APA, Harvard, Vancouver, ISO, and other styles
41

Chen, I.-Hui, and 陳怡蕙. "The Development of Observation Technique Using Transmission Electron Microscopy for Liposome at Low Temperature." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/595e62.

Full text
Abstract:
碩士<br>國立臺北科技大學<br>材料科學與工程研究所<br>103<br>In the past 30 years, cryo-transmission electron microscopy (cryo-EM) technology has been developed in many aspects for the applications on observing biological and medical specimens. Cryo-EM has been proven to be able to analyze some protein structures Cryo-EM allows users to quick-freeze the bio-samples in vitrified ice, observe the sample under the near-native condition, thus is a powerful tool to understand the samples in the native liquid phase. However, during cryo-EM operation, the high energy electron beam could quickly damage the ice sample. Ther
APA, Harvard, Vancouver, ISO, and other styles
42

Lan, Che-wei, and 連哲緯. "The Low-Temperature Bonding Technique for Plastic-Based Microfluidic Chips and its Applications for Micromixers." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/25260062919662294167.

Full text
Abstract:
碩士<br>國立中山大學<br>機械與機電工程學系研究所<br>92<br>Abstract A new technique for bonding of polymer micro-fluidic devices has been developed. This method can easily bond biochips with complex flow patterns and metal layer. Above all, using a patterned glass, the micro-channel structures on Poly-Methyl Meth-Acrylate (PMMA) substrates were generated by one-step hot embossing procedure. In contrast with the traditional thermal bonding, this paper presents low-temperature and low-pressure packaging for polymer micro-fluidic platforms. Furthermore, the disposable plastic biochip has successfully been tested by t
APA, Harvard, Vancouver, ISO, and other styles
43

Chen, Tang-Yuan, and 陳瑭原. "Low-Temperature Bonding Technique for Plastic Microfluidic Chips and its Applications on Plastic Diffuser Micropumps." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/07719197619420033940.

Full text
Abstract:
碩士<br>南台科技大學<br>機械工程系<br>94<br>A new technique for bonding of polymer micro-fluidic devices has been developed. This method can easily bond biochips with complex patterns. By using a patterned Ni mold, the micro-channel structures on Poly-Methyl Meth-Acrylate (PMMA) substrates were generated by one-step hot embossing procedure and bonding of low temperature. In contrast with the traditional thermal bonding, the method presents low-temperature and low-pressure packaging for polymer micro-fluidic platforms. Furthermore, the tensile strength of the disposable plastic biochip was 179 kgf., which i
APA, Harvard, Vancouver, ISO, and other styles
44

Chung, Chien-Chen, and 鐘健禎. "Study the Ultrafast Dynamics of High-Tc Superconductor at Low Temperature by Femtosecond Pump-Probe Technique." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/06779363552955463291.

Full text
Abstract:
碩士<br>國立交通大學<br>電子物理系<br>86<br>We have preformed a series of transient reflectivity(△R/R) measurements on oxygen-controlled YBCO thin films at different temperatures. A home-made femtosecond pump-probe system including a passively mode-lock Ti:sapphire laser and a continuous transfer cold finger cryostat were used for these measurement. The △R/R curves versus delay time of the oxygen-rich YBa2Cu3Ox (x=6.95) film for temperature ranging from 120K to 20Kwere different from those reports previously. The difference may due to the fact that they used different photon energy (~2eV) for the mea
APA, Harvard, Vancouver, ISO, and other styles
45

Yang, Janne-Min, and 楊建民. "Investigation on the Formation Mechanism of Ultra-fine Zn-ferrite Powders at Low Temperature (<500℃) by Tartrate Technique." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/67347728940886342337.

Full text
Abstract:
博士<br>國立成功大學<br>資源工程研究所<br>90<br>In the nonconventional preparation of spinel ferrite powders, the pyrolytic decomposition of precursors often occurs through multi-stage transformation paths, which involve different metastable intermediate phases. The present investigation deals with the synthesis of nano-sized zinc ferrite powders using the tartrate precursor technique. The focus of this investigation is to study the development of the intermediate phase during the decomposition of precursor, as well as the formation mechanism of zinc ferrite. Accordingly, the nano-sized zinc ferrite powders
APA, Harvard, Vancouver, ISO, and other styles
46

Hsieh, Chia-Chen, and 謝佳真. "The Study of The Low Temperature Flip-Chip Package by Applying AlGeSn-Based Transient Liquid Phase Bonding Technique." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/em95pz.

Full text
Abstract:
碩士<br>國立虎尾科技大學<br>電子工程系碩士班<br>101<br>In this study, the films are proposed that can be apply for low-temperature flip chip package by transient liquid phase bonding as AlGeSn-base. The AlGe/Sn films are deposited by thermal evaporation. And then the sample is placed in the vacuum environment for thermocompression bonding. In this experiment, use to the different film thickness ratio of AlGe and Sn for 280oC~350oC bonding, TAlGe:TSn=1:1, 2:1, 3:1, respectively. To find the best parameters, graphically produced, LED flip chip package and electrical measurements, after shear stress testing, SEM,
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!