编号：FTJS09824
篇名：SnS2的化学气相沉积法制备及光电特性
作者：南亚新 坚佳莹 董芃凡 耿铭涛 常芳娥
关键词： 二硫化锡 化学气相沉积法 光电探测器 光电特性
机构： 西安工业大学陕西省光电功能材料与器件重点实验室 西安工业大学电子信息工程学院
摘要： The study aims to improve the photoelectric properties of photodetectors,enabling them to have a wider spectral response range and to detect weak light signals.With SnO 2 and S powder as raw materials,SnS2film was prepared on sapphire substrates by chemical vapor deposition(CVD)and the photodetectors based on CVD SnS2were fabricated by dry transfer method.Their photoelectric properties at different wavelengths,light intensities and bias voltages were tested.The results show that the SnS2obtained was irregular sheets of 20~30μm.SnS2based photodetectors had different responses in the wavelength range of 250~850 nm,with the highest response at roughly 440 nm.Under the[JP+1]irradiation of 520 nm laser,their responsivity,detectability,rise time and fall time were 42.52 mA·W-1,[JP]1.83×1011 cm·Hz 1/2·W-1,[JP]37 ms and 66 ms,respectively.As an environmentally friendly material with a large band gap,SnS2will provide a reference for designing the next generation of high performance photodetectors.
