【摘要】 本文在制备ＴｉＯ２微孔薄膜的基础上，采用化学池生长的方法，将ＣｄＳｅ微粒成功地修饰在ＴｉＯ２薄膜上。研究表明：修饰有ＣｄＳｅ颗粒的ＴｉＯ２薄膜，其光吸收范围由紫外拓宽至可见光区，并呈现出良好的光电转换特性。另外，与ＣｄＳｅ体材料相比，ＣｄＳｅ／ＴｉＯ２薄膜的光吸收谱有明显兰移，这一量子尺寸效应表明ＣｄＳｅ微粒是以纳米粒子的形式存在于ＴｉＯ２薄膜上的。更多还原

【Abstract】 Abstract The transparent titanium dioxide(TiO2)electrode has been modified withcadmium selenite(CdSe)particles by a chemical bath deposition method.The sensitization ofTiO2 electrode with CdSe particles not only extends the optical absorption spectrum and pho-tocurrent action spectrum into visible region,but also facilaties the photo-to photocurrentconversion efficiency. In addition,compared with CdSe bulk materials,a blue shift in bothabsorption spectrum and photocurrent action spectrum of CdSe/TiO2 electrode is observedand explained in terms of quantum-size effect.更多还原