【摘要】 报道了在室温下用荧光光谱仪和飞秒脉冲激光激发诱导光致发光,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,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1.08eV处产生深受主能级,在导带底1.56eV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】 The photoluminescence spectra of zinc oxide nanoparticle (with an average diameter ～10 nm) defects were acquired by a fluorescent spectrophotometer and femtosecond laser pulse at room temperature. The defect energy levels were verified. The energy interval between the bottom of the conduction band and interstitial zinc level is 0.4 eV. As for zinc vacancy, oxide antisite, oxygen vacancy, and interstitial oxygen,the energy intervals are 3.06 eV, 2.28 eV, 1.56 eV and 2.1 eV, respectively.更多还原