標題: Band gap variation of size-controlled ZnO quantum dots synthesized by sol-gel method
作者: Lin, KF
Cheng, HM
Hsu, HC
Lin, LJ
Hsieh, WF
光電工程學系
Department of Photonics
公開日期: 30-六月-2005
摘要: ZnO quantum dots were synthesized successfully via a simple sol-gel method. The average size of quantum dots can be tailored using well-controlled concentration of zinc precursor. Size-dependent blue shifts of photoluminescence and absorption spectra revealed the quantum confinement effect. The band gap enlargement is in agreement with the theoretical calculation based on the effective mass model. Furthermore, as the particle size decreases, we observed an increase in the size-dependent Stokes shift of the photoluminescence peak relative to the absorption onset. (c) 2005 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.cplett.2005.05.027
http://hdl.handle.net/11536/13565
ISSN: 0009-2614
DOI: 10.1016/j.cplett.2005.05.027
期刊: CHEMICAL PHYSICS LETTERS
Volume: 409
Issue: 4-6
起始頁: 208
結束頁: 211
顯示於類別:期刊論文


文件中的檔案:

  1. 000230221400011.pdf