Synthesis of lead-free Cs3Sb2Cl3Br6 halide perovskite through solution processing method for self-powered photodetector applications
Synthesis of lead-free Cs3Sb2Cl3Br6 halide perovskite through solution processing method for self-powered photodetector applications
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DOI：
10.1016/j.matlet.2021.130874
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发表时间：
2021-09-27
影响因子：
3
通讯作者：
Batabyal, Sudip K.
中科院分区：
文献类型：
--
作者：
Pramod, Ashna K.;Subramaniam, Mohan Raj;Batabyal, Sudip K.
本文采用简单的溶液法合成了无铅的Cs3 Sb 2Cl 3Br 6微晶。X射线衍射（XRD）和透射电子显微镜（TEM）分析证实了Cs3 Sb 2Cl 3Br 6钙钛矿相的形成。扫描电子显微镜（SEM）和TEM形态显示存在的六方形状的Cs3 Sb 2Cl 3Br 6微晶。紫外-可见漫反射光谱（UV-Vis DRS）证实了2.55 eV直接带隙Cs3 Sb 2Cl 3Br 6的形成。采用Cs_3Sb_2Cl_3Br_6和碳材料，采用低成本的方法制备了横向型自供电光电探测器，在零偏压下，器件具有快速的开关时间（0.92s & 0.70s）和1 μ A/W的高响应度。
Herein, the present study focus on synthesis of lead-free Cs3Sb2Cl3Br6 microcrystals via a simple solution processing method. X-ray diffraction (XRD) and transmission electron microscopy (TEM) analysis confirms the formation hexagonal phase of Cs3Sb2Cl3Br6 perovskite. Scanning electron microscopy (SEM) and TEM morphology reveals the presence of hexagonal shape of Cs3Sb2Cl3Br6 microcrystals. UV-Vis diffuse-reflectance spectroscopy (UV-Vis DRS) endorse the formation of 2.55 eV direct bandgap Cs3Sb2Cl3Br6. A lateral type selfpower photodetector was fabricated via cost-effective method using Cs3Sb2Cl3Br6 and carbon materials and it shows a fast ON and OFF (0.92 s & 0.70 s) with a high responsivity of 1 mu A/W at zero bias.