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题名: Synthesis and temperature-dependent near-band-edge emission of chain-like Mg-doped ZnO nanoparticles
作者: Peng WQ;  Qu SC;  Cong GW;  Wang ZG
发表日期: 2006
摘要: Chain-like Mg-doped ZnO nanoparticles were prepared using a wet chemical method combined with subsequent heat treatment. The blueshifted near-band-edge emission of the doped ZnO sample with respect to the undoped one was investigated by temperature-dependent photoluminescence. Based on the energy shift of the free-exciton transition, a band gap enlargement of similar to 83 meV was estimated, which seems to result in the equivalent shift of the bound-exciton transition. At 50 K, the transformation from the donor-acceptor-pair to free-to-acceptor emissions was observed for both the undoped and doped samples. The results show that Mg doping leads to the decrease of the acceptor binding energy. (c) 2006 American Institute of Physics.
KOS主题词: Optical properties;  room temperature;  Photoluminescence;  Development;  alloy;  Photography--Films;  Finite volume method
刊名: APPLIED PHYSICS LETTERS
专题: 中国科学院半导体研究所(2009年前)_期刊论文

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推荐引用方式:
Peng WQ; Qu SC; Cong GW; Wang ZG .Synthesis and temperature-dependent near-band-edge emission of chain-like Mg-doped ZnO nanoparticles ,APPLIED PHYSICS LETTERS,2006,88(10):Art.No.101902
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