自Mochel和Littleton提出SnO_2、In_2O_3透明导电膜以来,已对其制备方法及电学、光学等物理性质进行了大量的研究,制出了电阻率低、透明度高和性能稳定的薄膜,并进行了推广应用。作为透明电极,它被应用于电致发光、液晶及图象存贮等光学装置中。在太阳能热利用中,它又被用作选择性透过膜。近年的研究还表明,利用它与Si等其它半导体结合,可制成“异质结”太阳电池,它具有如下功能: Since Mochel and Littleton proposed the SnO 2 and In 2 O 3 transparent conductive films, a lot of studies have been made on their preparation methods and their physical properties such as electrical and optical properties. Films with low resistivity, high transparency and stable performance have been fabricated and extended application. As a transparent electrode, it is used in electroluminescence, liquid crystal and image storage and other optical devices. In solar thermal use, it is used again as a selectively permeable membrane. In recent years, research has also shown that the use of it with other semiconductors such as Si can be made “heterojunction” solar cells, which has the following functions: