【作者】 李成斌； 贾天卿； 徐至展； 冯东海； 孙海轶； 李晓溪； 徐世珍；

【Author】 LI Chengbin, Jia Tianqing, Xu Zhizhan, Feng Donghai, Sun Haiyi, Li Xiaoxi, Xu Shizhen Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800

【机构】 中国科学院上海光机所强光光学重点实验室；

【摘要】 本文报道了在室温下,用飞秒脉冲激光低强度激发诱导光致发光谱,获得氧化锌纳米颗粒(平均直径约为10nm)缺陷发光光谱的实验。探讨了氧化锌纳米颗粒发光与深能级缺陷的关系,验证了氧化锌纳米颗粒缺陷能级的位置。锌填隙缺陷在距离导带底0.4eV处产生浅施主能级,锌空位缺陷在价带顶0.3eV处产生浅受主能级,氧锌替位缺陷在价带顶0.98eV处产生深受主能级,在导带底1.62eV处有氧空位缺陷引起的深杂质能级产生,氧填隙缺陷在价带顶1.35eV处产生深受主能级。更多还原

【Abstract】 In this paper, we report that the photoluminescence spectra of zinc oxide nanoparticle(with an average diameter ~10nm) defects were acquired by femtosecond laser pulse and a fluorescent spectrophotometer at room temperature. The relation between photoluminescence and defect were discussed, furthermore, defect energy levels were verified. The energy interval between the bottom of the conduction band and interstitial zinc level is 0.4eV. As for zinc vacancy, oxide antisite, oxygen vacancy, and interstitial oxygen,the energy intervals are 3.06eV, 2.38eV, 1.62eV and 2.1eV, respectively.更多还原