对掺 Ｃｕ 和 Ｃｌ的 Ｃｄ Ｓ Ｃｄ Ｓｅ 双层光电导膜的暗电导和亮电导与掺杂浓度及 Ｃｕ／ Ｃｌ比的关系、响应时间和光谱响应进行了研究。试验发现： 适当的 Ｃｕ／ Ｃｌ掺杂比可使暗电导降低而亮电导提高； 掺杂薄膜的响应时间可达５～１０ ｍ ｓ， 而对未掺杂薄膜， 一般为数百毫秒； 随着 Ｃｄ Ｓｅ 浓度增加， 光学吸收变大， 光谱响应向长波移动 The dark conductance, bright conductance, doping concentration and Cu / Cl ratio, response time and spectral response of CdS-CdSe bilayer photoconductive films doped with Cu and Cl were studied. The results show that the appropriate doping ratio of Cu / Cl can reduce the dark conductance and increase the light conductance. The doping film can reach 5 ~ 10 m s in response time and hundreds of milliseconds in undoped film. The concentration of Cd Se increases, the optical absorption becomes larger, and the spectral response shifts to longer wavelengths