Optical properties of ZnO powder prepared by using a proteic sol-gel process

被引：0
|
作者：
Bong-Joon Kwon
Hyun-Joo Woo
Ji-Yeon Park
Kiwan Jang
Seung-Hyuk Lim
Yong-Hoon Cho
机构：
[1] Changwon National University,Research Institute of Basic Sciences
[2] Korea Advanced Institute of Science and Technology (KAIST),Department of Physics, Graduate School of Nanoscience and Technology (WCU), and KAIST Institute for the NanoCentury
来源：
Journal of the Korean Physical Society | 2013年 / 62卷
关键词：
ZnO powder; Proteic sol-gel; Photoluminescence;
D O I：
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中图分类号：
学科分类号：
摘要：
We have studied the optical properties of ZnO powder synthesized by using a proteic sol-gel process with coconut water as the precursor. The energy dispersive X-ray spectrometer and X-ray diffraction results show high purity of the synthesized ZnO powder. From the low-temperature (12 K) and power-dependent PL spectra, the donor-bound exciton, the acceptor-bound exciton, the donor-to-acceptor pair (DAP), and the phonon-replica of the DAP transition have been observed at 3.38, 3.34, 3.26, and 3.19 eV, respectively. The free exciton emission (∼3.3 eV) is also observed at 300 K in the temperature-dependent PL spectra.
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页码：739 / 742
页数：3
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