Preparation of ultrawide ZnSe nanoribbons with the function of lasing cavity  

作　　者：侯德东 吴惠 刘应开 

机构地区：[1]Department of Physics,Yunnan Normal University [2]Center of Super-Diamond and Advanced Films and Department of Physics and Materials Science,City University of Hong Kong

出　　处：《Optoelectronics Letters》2010年第4期241-244,共4页光电子快报（英文版）

基　　金：supported by the National Natural Science Foundation of China (No. 10764005);the Natural Science Foundation of Yunnan Province (Nos. 06A0025Q and 2007PY01-41);the Educational Council of Yunnan Province (Nos. 5Z0098A and 06Y091);the Excellent Talent Supporting Project in the New Century of Chinese Education Ministry (No. NCET-08-0926)

摘　　要：Ultrawide ZnSe nanoribbons are synthesized by the simple thermal evaporation.The microstructure of ZnSe nanoribbons is characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM),transmission electron microscopy(TEM),high-resolution TEM(HRTEM),photoluminescence(PL) and Raman spectrum.It is found that the strong emission near the band gap of ZnSe centered at 460 nm is obtained in these nanoribbons.More importantly,ZnSe nanoribbons can act as lasing emitting optical cavities.Raman studies indicate that the longitudinal optic(LO) and transverse optic(TO) phonon confinements of the ZnSe nanoribbons shift to lower frequency.Ultrawide ZnSe nanoribbons are synthesized by the simple thermal evaporation.The microstructure of ZnSe nanoribbons is characterized by X-ray diffraction（XRD）,scanning electron microscopy（SEM）,transmission electron microscopy（TEM）,high-resolution TEM（HRTEM）,photoluminescence（PL） and Raman spectrum.It is found that the strong emission near the band gap of ZnSe centered at 460 nm is obtained in these nanoribbons.More importantly,ZnSe nanoribbons can act as lasing emitting optical cavities.Raman studies indicate that the longitudinal optic（LO） and transverse optic（TO） phonon confinements of the ZnSe nanoribbons shift to lower frequency.

关 键 词：纳米带 硒化锌 超宽带 高分辨透射电子显微镜 激光腔 扫描电子显微镜 TEM分析 制备 

分 类 号：TN925[电子电信—通信与信息系统]