2010 Fiscal Year Final Research Report
Mass Synthesis of Blue-luminescent SiC Nanoparticles : Application to Flat-panel White Light-emitting Diodes
| Project/Area Number |
20360095
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Thermal engineering
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
NOZAKI Tomohiro Tokyo Institute of Technology, 大学院・理工学研究科, 特任准教授 (90283283)
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| Co-Investigator(Kenkyū-buntansha) |
OKAZAKI Ken 東京工業大学, 大学院・理工学研究科, 教授 (20124729)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 量子ドット / 二酸化炭素排出削減 / 熱工学 / 反応工学 / 非平衡プラズマ / プラズマ加工 / ナノシリコン / ナノ材料 |
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| Research Abstract |
Although optical properties of silicon-related semiconductor nanocrystals (NCs) is not as excellent as compound semiconductor materials such as cadmium selenide, these materials are highlighted as one of the promising frontiers in the future optoelectronic devices because of non-toxicity and abundance. We propose in-flight plasma synthesis of silicon carbide NCs with size tunable photoluminescence. As-produced NCs were dispersed into organic solvent, followed by spin coating to fabricate NC containing thin film. We successfully fabricated 3-12 nm NCs, and observed size-dependent photoluminescence between 650 nm and 900 nm. However electroluminescence was not possible due to significant oxidation of NCs. Compared with NCs synthesized using SiH_4, chlorine- terminated NCs are oxidized 1000-time faster than hydrogen-terminated NCs. Further development of given plasma technology for NCs containing lighting devices, ambient oxygen and moisture must be strictly eliminated.
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Research Products
(54 results)
