Open AccessHigh quality SnO2 crystals grown with catalyst-assistance and study on their photoluminescent spectroscopy
Author(s) -
Cairong Ding,
Bing Wang,
Guowei Yang,
He-Zhou Wang
Publication year - 2007
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.56.1775
Subject(s) - photoluminescence , materials science , catalysis , crystal (programming language) , spectroscopy , nanocrystal , spectral line , emission spectrum , quality (philosophy) , analytical chemistry (journal) , optoelectronics , nanotechnology , chemistry , physics , computer science , quantum mechanics , biochemistry , chromatography , astronomy , programming language
SnO2 nanocrystals were synthesized, and their photoluminescence spectra revealed the following results. Firstly, we found that the main emission peak of the sample grown with catalyst-assistance is the emission peak of band gap (3.68 eV), and the photoluminescence efficiency of the crystal grown with catalyst-assistance is much higher than that without it. These results show that the quality of the crystal grown with catalyst-assistance is much improved. Furthermore, the emissions of twin-born crystal surfaces (101) and (101)T are demonstrated from the results of the deconvolution of photoluminescence spectra.