论文部分内容阅读
液相法制备了亚铜掺杂的碘化亚锡基层状类钙钛矿结构杂合物(C6H5C2H4NH3)2CuxSn1-xI4-x(其中x为掺杂量)粉料,并用旋涂法制备了其薄膜。用原子吸收光谱法研究发现,亚铜实际掺杂量与投料量有较大差异。杂合物的X射线谱(XRD)、扫描电镜图像(SEM)表明,所得杂合物具有层状结构。紫外-可见谱测得了不同掺杂量时杂合物的带隙,霍尔效应测试测定了杂合物薄膜的载流子浓度和迁移率。结果表明,随着亚铜掺杂量的增加,杂合物的带隙基本不变,但杂合物中载流子密度增加,而迁移率则下降。
The powder of cuprous-doped stannous iodide-containing layered perovskite-type complex (C6H5C2H4NH3) 2CuxSn1-xI4-x (where x is the doping amount) was prepared by liquid phase method and its powder was prepared by spin coating film. Using atomic absorption spectroscopy found that the actual doping amount of copper and feed are quite different. X-ray spectroscopy (XRD) and scanning electron microscope (SEM) images of the hybrids show that the resulting heteroconjugate has a layered structure. The band gaps of hybrids were measured by UV-visible spectroscopy at different doping levels. The Hall effect test measured the carrier concentration and mobility of the hybrid films. The results show that with the increase of the amount of cuprous, the band gap of the hybrid is almost unchanged, but the carrier density of the hybrid increases and the mobility decreases.