Organic Electronics ( IF 2.7 ) Pub Date : 2017-10-23 , DOI: 10.1016/j.orgel.2017.10.024 Shuigen Li , Sichao Tong , Jian-Qiao Meng , Chujun Zhang , Cheng Zhang , Jianqiang Shen , Si Xiao , Jia Sun , Jun He , Yongli Gao , Bingchu Yang , Junliang Yang
Hybrid organolead halide perovskites, a class of materials used in optoelectronic devices, have attracted significant attention due to their performance and fabrication process. This paper reports on a pinhole free, compact, high-quality, mixed-cation (consisting of formamidinium (FA) and methylammonium (MA)) FAxMA(1−x)PbI3 polycrystalline perovskite film prepared in a one-step solution process using a doctor-blading deposition technology under ambient conditions with no subsequent annealing. A perovskite film domain size of up to 100 μm was obtained. A FAxMA(1−x)PbI3-based photodetector using a simplestructure glass/FAxMA(1−x)PbI3/Au device was fabricated. Ultraviolet (UV) high photoresponse reached the near-infrared (NIR) range. Its best responsivity (R) was 10.57 AW-1 with a response speed of ∼9.0 ms. Results indicate that this technique results in high-quality, phase-pure, FAxMA(1−x)PbI3 perovskite films and high-performance optoelectronic devices.
中文翻译:
通过在环境条件下通过刮刀式沉积制造的快速响应和高响应性FA x MA (1- x) PbI 3光电探测器
杂化有机铅卤化物钙钛矿,一种用于光电器件的材料,由于其性能和制造工艺而引起了极大的关注。本文报道了一步制备的无针孔,致密,高质量,混合阳离子(由甲ami(FA)和甲基铵(MA)组成)FA x MA (1- x) PbI 3多晶钙钛矿薄膜。在环境条件下使用刮刀式沉积技术进行工艺,无需后续退火。获得的钙钛矿膜畴尺寸最大为100μm。使用简单结构的玻璃/ FA的基于FA x MA (1- x) PbI 3的光电探测器制作了x MA(1- x) PbI 3 / Au器件。紫外线(UV)的高光响应达到近红外(NIR)范围。其最佳响应度(R)为10.57 AW -1,响应速度约为9.0毫秒。结果表明,该技术可产生高质量,纯相的FA x MA(1- x) PbI 3钙钛矿薄膜和高性能光电器件。