Yellow-emitting colloidal suspensions of silicon nanocrystals: Fabrication technology, luminescence performance and application prospects

0350386 - FZÚ 2011 RIV NL eng J - Journal Article
Kůsová, Kateřina - Cibulka, Ondřej - Dohnalová, Kateřina - Pelant, Ivan - Fučíková, A. - Valenta, J.
Yellow-emitting colloidal suspensions of silicon nanocrystals: Fabrication technology, luminescence performance and application prospects.
Physica E: Low-Dimensional Systems and Nanostructures. Roč. 41, č. 6 (2009), s. 982-985. ISSN 1386-9477. E-ISSN 1873-1759.
[Spring Meeting of the European-Materials-Research-Society on Frontiers in Silicon-Based Photonics. Strasbourg, 26.05.2008-29.05.2008]
R&D Projects: GA AV ČR(CZ) IAA101120804; GA MŠMT LC510; GA ČR GA202/07/0818
Institutional research plan: CEZ:AV0Z10100521
Keywords : silicon nanocrystals * photoluminescence * colloidal solution
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 1.177, year: 2009
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VMT-4T72X3R-2&_user=625012&_coverDate=05%2F31%2F2009&_alid=940480650&_rdoc=3&_fmt=high&_ori

Pulverized porous silicon is used to prepare colloidal suspensions of silicon nanocrystals in various organic solvents including xylene. The spectra this suspension show a slow evolution from the original orange color through blue to a yellow one. After approximately 5 weeks, a yellow emitting transparent colloidal solution can be extracted from the cuvette, with a high and stable photoluminescence yield (20%).
Permanent Link: http://hdl.handle.net/11104/0190402