徐州工程学院学报：自然科学版2012，Vol.27Issue(2)：5-9,5.
氨气退火对ZnO纳米线阵列光致发光性质的影响
The Effect of NH3 Anneal on the Photoluminescence Properties of ZnO Nanowires Array
摘要
Abstract
The ZnO nanowires were prepared on Si （100） substrate by hydrothermal technology. Prior to the growth of nanowires, thin ZnO seed layer was prepared on the surface of Si substrate by coating. Then, oriented ZnO nanowires were grown on the seed layer through hydrothermal method. The ZnO nanowires were annealed in NH3 at different temperatures. The effect of anneal on their photoluminescence （PL） properties were systematically studied. N acceptor-related emissions appeared in low-temperature PL spectra. The ionization energy of N acceptor was determined as 129 meV from free-electron-to-acceptor （FA） transition. In addition, donor-acceptor pair （DAP） emission showed a slight redshift with increasing annealing temperature. An obvious free-exiton （FE） emission was observed in the PL spectra of ZnO nanowires annealed at 700℃. This phenomenon was proved with theory fitting.关键词
ZnO纳米线/NH3/退火/光致发光Key words
ZnO nanowire/NH3 anneal/photoluminescence分类
数理科学引用本文复制引用
沈临江,王雷,戚志鹏..氨气退火对ZnO纳米线阵列光致发光性质的影响[J].徐州工程学院学报：自然科学版,2012,27(2):5-9,5.基金项目
基金项目：国家自然科学基金项目 （）
