The photo-corrosion of electrodeposited polycrystalline CdSe electrode was inhibited effectively by coating a thin layer of the conductive polyaniline （PAN） film. The relation between the performance and internal ba...The photo-corrosion of electrodeposited polycrystalline CdSe electrode was inhibited effectively by coating a thin layer of the conductive polyaniline （PAN） film. The relation between the performance and internal band structure of such film-covered PAN/CdSe electrode was studied by the electrochemical modulation reflectance spectrum （EMRS）. EMRS of both CdSe and PAN/CdSe electrodes in K4Fe（CN）6/K3Fe（CN）6 solution exhibited typical France-Keidysh oscillations, by which the values of the energy gap and flat band potential were determined. The EMRS results indicated that the energy band structure of CdSe electrode was not changed after coated with PAN film, so that the photoelectrochemical characteristic of PAN/CdSe electrode was rather similar to that of CdSe electrode.展开更多
文摘The photo-corrosion of electrodeposited polycrystalline CdSe electrode was inhibited effectively by coating a thin layer of the conductive polyaniline （PAN） film. The relation between the performance and internal band structure of such film-covered PAN/CdSe electrode was studied by the electrochemical modulation reflectance spectrum （EMRS）. EMRS of both CdSe and PAN/CdSe electrodes in K4Fe（CN）6/K3Fe（CN）6 solution exhibited typical France-Keidysh oscillations, by which the values of the energy gap and flat band potential were determined. The EMRS results indicated that the energy band structure of CdSe electrode was not changed after coated with PAN film, so that the photoelectrochemical characteristic of PAN/CdSe electrode was rather similar to that of CdSe electrode.
文摘9908271微机在光调制反射谱实验中的应用[刊]/李海涛//数据采集与处理.—1998,13(增刊).—101～107(V)介绍了计算机在光调制反射谱实验室中的应用。在自动控制系统中使用 GPIB 接口连接锁相放大器和直流万用表,用8255和8253芯片控制单色仪的步进电机。软件采用 Windows 图形界面,极大地提高了易用性。实验结果显示,自动控制系统精度高并且使用方便。
