测量了SnO2/SI表面吸附H2、液化石油气等还原性气体前后光电压的变化；分析、讨论了SnO2/SI表面的吸附性和机理。The changes of photovoltage when the SnO_2/Si surFace adsorbed reducing gas(H2, liquiFied petroleum)are measured.The mechanism For the gas adsorption of SnO_2/Si surFace has been analysed and discussed.国家和福建省自然科学基
