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制备了二氧化锡／ 多孔硅／ 硅（ＳｎＯ２／ＰＳ／Ｓｉ） 异质结构样品，在不同温度下，分别测量样品吸附氢气、液化石油气前后的光生电压谱。结合Ｘ 光电子能谱（ＸＰＳ） 测量结果，分析了光生电压谱变化的机理
SnO2 / PS / Si heterostructures samples were prepared, and the photo-induced voltage spectra of hydrogen peroxide and LPG were measured at different temperatures. Combined with the results of X-ray photoelectron spectroscopy (XPS), the mechanism of photo-induced voltage spectrum change