Literatura científica selecionada sobre o tema "Nitride RED phosphor"
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Artigos de revistas sobre o assunto "Nitride RED phosphor"
Uheda, Kyota. "Application of Nitride and Oxynitride Compounds to Various Phosphors for White LED". Key Engineering Materials 403 (dezembro de 2008): 15–18. http://dx.doi.org/10.4028/www.scientific.net/kem.403.15.
Texto completo da fonteCherepy, Nerine J., Stephen A. Payne, Nicholas M. Harvey, Daniel Åberg, Zachary M. Seeley, Kiel S. Holliday, Ich C. Tran et al. "Red-emitting manganese-doped aluminum nitride phosphor". Optical Materials 54 (abril de 2016): 14–21. http://dx.doi.org/10.1016/j.optmat.2016.02.008.
Texto completo da fonteDutta, Dimple P., e A. K. Tyagi. "Inorganic Phosphor Materials for Solid State White Light Generation". Solid State Phenomena 155 (maio de 2009): 113–43. http://dx.doi.org/10.4028/www.scientific.net/ssp.155.113.
Texto completo da fonteZhang, Shiyou, Zhen Song, Shuxin Wang, Zhizhen Wang, Feixiong Wang e Quanlin Liu. "Red persistent and photostimulable phosphor SrLiAl3N4:Eu2+". Journal of Materials Chemistry C 8, n.º 14 (2020): 4956–64. http://dx.doi.org/10.1039/d0tc00277a.
Texto completo da fonteTENG, Xiaoming, Weidong ZHUANG, Yunsheng HU e Xiaowei HUANG. "Luminescence properties of nitride red phosphor for LED". Journal of Rare Earths 26, n.º 5 (outubro de 2008): 652–55. http://dx.doi.org/10.1016/s1002-0721(08)60155-6.
Texto completo da fonteKim, S. W., T. Hasegawa, S. Hasegawa, R. Yamanashi, H. Nakagawa, K. Toda, T. Ishigaki, K. Uematsu e M. Sato. "Improved synthesis of SrLiAl3N4:Eu2+ phosphor using complex nitride raw material". RSC Advances 6, n.º 66 (2016): 61906–8. http://dx.doi.org/10.1039/c6ra14107b.
Texto completo da fonteXia, Yonghui, Shuxing Li, Yingxue Zhang, Takashi Takeda, Naoto Hirosaki e Rong-Jun Xie. "Discovery of a Ce3+-activated red nitride phosphor for high-brightness solid-state lighting". Journal of Materials Chemistry C 8, n.º 41 (2020): 14402–8. http://dx.doi.org/10.1039/d0tc03964k.
Texto completo da fonteNuryadin, Bebeh Wahid, Ea Cahya Septia, Ferry Iskandar, Takashi Ogi, Kikuo Okuyama, Abdullah Mikrajuddin e Khairurrijal. "Microwave-Assisted Solid State Synthesis of Red-Emitting BCNO Phosphor and its Characteristics". Advanced Materials Research 896 (fevereiro de 2014): 464–67. http://dx.doi.org/10.4028/www.scientific.net/amr.896.464.
Texto completo da fonteUeda, Jumpei, Julius L. Leaño, Cyrille Richard, Kazuki Asami, Setsuhisa Tanabe e Ru-Shi Liu. "Broadband near-infrared persistent luminescence of Ba[Mg2Al2N4] with Eu2+ and Tm3+ after red light charging". Journal of Materials Chemistry C 7, n.º 6 (2019): 1705–12. http://dx.doi.org/10.1039/c8tc06090h.
Texto completo da fonteTrinh, Hung Quang, Jin Oh Jo, Sang Baek Lee e Young Sun Mok. "Preparation of red nitride phosphor from powder mixture of metal nitrides using spark plasma sintering". Current Applied Physics 14, n.º 8 (agosto de 2014): 1051–56. http://dx.doi.org/10.1016/j.cap.2014.05.019.
Texto completo da fonteTeses / dissertações sobre o assunto "Nitride RED phosphor"
Beddar, Sidahmed. "Caractérisations et études de fiabilité des nouvelles générations de LED pour une utilisation dans un environnement automobile". Electronic Thesis or Diss., université Paris-Saclay, 2021. http://www.theses.fr/2021UPASG015.
Texto completo da fonteIn 2008, all front lighting functions of a vehicle are based on full LEDs for the first time. This light source opened the golden age of automotive lighting through low power consumption, efficiency, reliability, high brightness, compactness, as well as cost efficiency. These qualities have enabled it to gain the majority of the automotive market share.The miniaturization of the LED made possible the light beam pixelization. This further improves road safety. Indeed, lighting the road without glairing other users has become possible with this technology. In addition, lighting needs are changing with the arrival of the autonomous car. This is when pixelated LED technologies represent prospects in the field of lighting for sensors, and even in communication through the projection of pictograms and / or writing on the road.A second research axis will be dealt with in this thesis. It consists of studying red LEDs with phosphor for automotive rear signaling functions.New failure mechanisms will emerge, due to these new mission profiles and new techniques for manufacturing immature LEDs. A critical need for a scientific approach to define and execute a test plan and electrical, optical, physical and thermal characterizations of these new technologies.The main objectives of this thesis will be to develop new methods, new Opto-Electro-Thermal benchs’ characterizations and to investigate the modes of failure mechanisms related to manufacturing processes, geometries, composition materials and to new lighting systems mission profiles
Moberg, Mikhal. "THE EFFECTIVENESS OF SPECIFICALLY DESIGNED FILTER MEDIA TO REDUCE NITRATE AND ORTHOPHOSPHATE IN STORMWATER RUNOFF". Master's thesis, University of Central Florida, 2008. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3677.
Texto completo da fonteM.S.
Department of Civil and Environmental Engineering
Engineering and Computer Science
Environmental Engr MSEnvE
O'Reilly, Andrew M. "Biogeochemical Cycling and Nutrient Control Strategies for Groundwater at Stormwater Infiltration Basins". Doctoral diss., University of Central Florida, 2012. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5360.
Texto completo da fonteID: 031001572; System requirements: World Wide Web browser and PDF reader.; Mode of access: World Wide Web.; Adviser: Ni-Bin Chang.; Title from PDF title page (viewed August 26, 2013).; Thesis (Ph.D.)--University of Central Florida, 2012.; Includes bibliographical references (p. 246-263).
Ph.D.
Doctorate
Civil, Environmental, and Construction Engineering
Engineering and Computer Science
Civil Engineering
Shu-ChiHuang e 黃姝綺. "Combustion Synthesis of Red Nitride CaAlSiN3:Eu2+ Phosphor for White Light LEDs". Thesis, 2016. http://ndltd.ncl.edu.tw/handle/34x2pg.
Texto completo da fonte國立成功大學
化學工程學系
104
White light LED lighting is believed to replace the conventional lighting and becomes the next generation lighting device due to its advantages such as energy efficiency, long lifetime, compactness, environment friendliness and designable features. Phosphors are essential materials for the fabrication of the LED lighting devices and their properties significantly affect the performance of the devices. Among various types of phosphor, the type with red emission is considered to be the most urgent one to be developed for two main reasons: Its use can improve the color rendering of the currently commercialized LED lighting devices and conventional red phosphors suffer from poor thermal and chemical stability and low quantum efficiency. Recently, nitride phosphors have been discovered and shown to be ideal for application in LED lighting due to their superior properties such as high quantum efficiency, long wavelength (red) emission and high thermal and chemical stability. However, the methods that have been developed for synthesis of nitride phosphors mostly suffer from either severe synthesis conditions or involving the use of moisture or oxygen sensitive starting materials, resulting in high production costs and thus high market prices of the commercially available nitride phosphors, and limiting the application of the LED lighting devices. In the past few years, we developed a combustion synthesis method for nitride phosphors with advantages including simple and inexpensive equipment required, relatively low cost of the reactants, a fast reaction and short processing time, potential capability for mass production. Effects of N2 gas pressure and reactant compositions related to product yield and emission property will be discussed in this research.The research result reveals the that product yield, emission intensity and wavelength of CaAlSiN3:Eu2+ phosphor can be controlled via adjust the reactant compositions using thermal insulation apparatus. Moreover, effects of Ca content (in the reactant mixture) on the formation and the photoluminescence properties of CaAlSiN3:Eu2+ phosphor (CASIN) were investigated. The plate-like blue-green emission of AlN:Eu2+ phosphor, both of plate-like and bar-like orange-red emission of Ca-α-SiAlON:Eu2+ phosphor and plate-like ,bar-like and irregular-shaped (i.e., agglomerated fine particles) red emission of CaAlSiN3:Eu2+ phosphor can be synthesized at the same time with various Ca contents. The bar-like morphology of CaAlSiN3:Eu2+ seen to have stronger emission than the other two morphologies (i.e., plate-like and agglomerated fine particles of CaAlSiN3:Eu2+), The Ca and Eu contents (expressed as molar ratios) in the synthesized products were found to increase roughly with increasing Y but were both lower than the respective Ca and Eu contents in the reactant mixtures.The synthesized CaAlSiN3:Eu2+ phosphor absorbs light in the region of 220–600 nm and shows a broad band emission in the region of 500–800 nm under excited by the blue light (460 nm) and generates emission peaking at ~650 nm.
Meng, Shu-Yi, e 孟書怡. "Chemical Control of Intensity and Wavelength of Red-emitting Narrowband Nitride Phosphors". Thesis, 2018. http://ndltd.ncl.edu.tw/handle/4fsf7n.
Texto completo da fonte國立臺灣大學
化學研究所
106
The narrowband red-emitting phosphor SrLiAl3N4:Eu2+(SLA) with extraordinary structure and excellent luminous properties is regarded as a prospective red phosphor for white light-emitting diodes(WLEDs). The quality of the white-LED depends on the emission intensity and luminous efficacy of radiation (LER) of the component phosphor, which is, in turn, is related to the emission wavelength, and the bandwidth of the phosphor. As it is now, the emission efficiency of SLA is still not sufficient for the commercial application. Besides, to obtain the optimum luminous efficiency, the emission wavelength of the phosphor should be between 620-630 nm, while the emission wavelength of SLA phosphor is at 655 nm, where the human eyes’ sensitivity is low, and will lead to a decrease in LER. Thus, to obtain the high quality of WLED, improving the emission intensity and blue-shifting the emission wavelength of this phosphor are necessary. The properties of SLA was optimized by chemical substitution with using Ba3N2 as flux. By the addition of flux, the Morphology of the SLA phosphor was improved by smoother surfaces and larger particle sizes that reflected enhanced luminescence properties and stability in the high-temperature devices. By tuning the environment of the luminescence centers via chemical substitution, where the SLA host was modified by substitution of Ga in the Al site, the emission peak at 655 nm was successfully shifted to 630 nm, and enhanced its LER and efficiency up to 1.25 compared to SLA. The narrowband red-emitting SLA was prepared by using solid-state reaction under high pressure. The crystal structure information was investigated by X-ray diffractometer and refined by TOPAS. To describe the relationship between the crystal structure and its luminous properties, the photoluminescence and the temperature-dependent photoluminescence properties were analyzed. To investigate the environments of the luminescence centers, time-resolved emission spectra and decay times at low temperature were measured, and the ultra violet-visible-Near Infrared device was used to evaluate the feasibility of the fabrication into WLED device.
Tsai, Yi-Ting, e 蔡宜庭. "Synthesis and Composition Control of Red Nitride Phosphors for Applications in Light-emitting Diodes". Thesis, 2016. http://ndltd.ncl.edu.tw/handle/78362506149987661898.
Texto completo da fonte國立臺灣大學
化學研究所
104
Traditional WLEDs are fabricated using blue chip and yellow phosphor to produce white light, with high efficiency but poor color rendering index (CRI) because of the lack of a red component. In this work, using chemical substitution and synthesis conditions on the basis red nitride phosphors, while theoretical discussion of their chemical properties. The light emission of Sr2Si5N8:Eu2+ at 620 nm, the orange light is ideal to red source. The properties of Sr2Si5N8:Eu2+ can be tailored by tuning the pressure, temperature, and sintering time in the basic sintering process. In the synthesis of Sr2Si5N8:Eu2+, Sr2Si5N8:Eu2+ was converted into SrSi6N8:Eu2+ during heating. CaAlSiN3: Eu2+ is also one of the highly stable material, which is located 650 nm. (Sr,Ca)AlSiN3:Eu2+, was developed through cation substitution and blue shift to 620 nm of peak position. Distortion of the lattice structure introduced adequate space and highly coordinated sites in the Sr/Eu centers for charge variation effect. Subsequently, typically arranged variations of the SiN¬4 and AlN4 clusters were formed in the lattice by Raman and ssNMR technique. SrLiAl3N4:Eu2+ presents a narrow band red phosphor for reducing near infrared region emission. In this study, SrLiAl3N4:Eu2+ red phosphor was prepared through a high-pressure solid-state reaction and was coated with organosilica layers to improve water resistance. The coated samples exhibited excellent moisture resistance while retaining external quantum efficiency in high temperature and high humidity. This study provides valuable information on the stimulation of nitride phosphors in LEDs
Capítulos de livros sobre o assunto "Nitride RED phosphor"
Ali, Amjad, Qian Li, Hongyan Fu e Syed Raza Mehdi. "Blue Laser Diode-Based Visible Light Communication and Solid-State Lighting". In Antenna Systems [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.100106.
Texto completo da fonteKirchman, David L. "Reviving Dead Zones". In Dead Zones, 154–72. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780197520376.003.0011.
Texto completo da fonteTrabalhos de conferências sobre o assunto "Nitride RED phosphor"
Jain, Barsha, Ravi Teja Velpula e H. P. T. Nguyen. "Phosphor-free III-nitride red micro-light emitting diodes for display applications". In CLEO: Science and Innovations. Washington, D.C.: OSA, 2021. http://dx.doi.org/10.1364/cleo_si.2021.stu2c.1.
Texto completo da fonteKyrginas, Dimitrios, Gérald Ledru, Benoit Glorieux e Georges Zissis. "Laser-driven white light generation by mixing blue (BAM), green (GYAG), and red (nitride) phosphors". In Light-Emitting Devices, Materials, and Applications XXVI, editado por Martin Strassburg, Jong Kyu Kim e Michael R. Krames. SPIE, 2022. http://dx.doi.org/10.1117/12.2606554.
Texto completo da fonteDUBRA, Vytautas. "SOME PECULIARITIES OF SPATIAL DISTRIBUTION OF LAND-BASED INORGANIC NUTRIENTS IN THE COASTAL PART OF THE BALTIC SEA". In Rural Development 2015. Aleksandras Stulginskis University, 2015. http://dx.doi.org/10.15544/rd.2015.070.
Texto completo da fontePetaja, Guna, Ilze Karklina e Santa Neimane. "Short-term effects of fertilization on photosynthetic activity in a deciduous tree plantation". In Research for Rural Development 2021 : annual 27th International scientific conference proceedings. Latvia University of Life Sciences and Technologies, 2021. http://dx.doi.org/10.22616/rrd.27.2021.008.
Texto completo da fonteKarklina, Ilze, Zaiga Anna Zvaigzne e Jelena Stola. "Chemical properties of needles as an indicator of nutrient status of fertilized coniferous stands". In Research for Rural Development 2020. Latvia University of Life Sciences and Technologies, 2020. http://dx.doi.org/10.22616/rrd.26.2020.012.
Texto completo da fonteGRINBERGA, Linda, e Ainis LAGZDINS. "NUTRIENT RETENTION IN SURFACE FLOW CONSTRUCTED WETLAND IN AGRICULTURAL LAND IN LATVIA". In RURAL DEVELOPMENT. Aleksandras Stulginskis University, 2018. http://dx.doi.org/10.15544/rd.2017.179.
Texto completo da fonte