基于微滴喷射的有机-无机杂化钙钛矿薄膜制备  

Preparation of Organic-inorganic Hybrid Perovskite Film Based on Micro-droplet Jetting

作　　者：杜昀洁 赵振昊 林峰[1,2] DU Yunjie;ZHAO Zhenhao;LIN Feng(Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China;Key Laboratory for Advanced Materials Processing Technology, Ministry of Education of China, Beijing 100084, China)

机构地区：[1]清华大学机械工程系,北京100084 [2]先进成形制造教育部重点实验室,北京100084

出　　处：《新技术新工艺》2019年第10期10-15,共6页New Technology & New Process

基　　金：清华大学自主科研项目(20161080165)

摘　　要：有机-无机杂化钙钛矿是近年来备受关注的一种新型半导体材料,被广泛应用在许多光电器件上。目前,钙钛矿薄膜主要通过溶液法制备,但通过溶液法制备的钙钛矿薄膜受限于固定的形状及面积尺寸。针对上述问题,提出了一种基于交变滞惯力的微滴喷射方法制备钙钛矿薄膜,实现了微米尺寸、线状、大面积及多尺寸的钙钛矿薄膜制备,配合高温基底,可以制备出平整、全覆盖率的高质量薄膜;此外,所制备的线状薄膜应用于探测器上在光电流重复性和光响应速度方面表现出良好的光电性能,光响应上升时间为0.1ms,衰减时间为0.2ms。Organic-inorganic halide perovskite materials as a new class of semiconductor materials has attracted enormous interest in recent years, which was widely used in many optoelectronic devices. Nowadays, perovskite films were fabricated through solution processing. However, perovskite films prepared by solution method were limited by fixed shape and area size. To solve the above problems, a facile method was used to fabricate hybrid perovskite film, which prepared from drop-on-demand (DOD) micro-droplet ejected by alternating viscous and inertial force jetting. The preparation of perovskite films with micron-size, linear, large-area and multi-size were realized from micro-droplet jetting method. High quality perovskite film with even surface and high coverage can be easily prepared at high temperature of substrate based on micro-droplet jetting. In addition, the detector showed high performance including good photocurrent repeatability and high photo response speed with a rise time of 0.1 ms and decay time of 0.2 ms based on the as-prepared linear perovskite film.

关 键 词：半导体 有机无机杂化钙钛矿 薄膜 微滴喷射 光电性能 探测器 

分 类 号：O472[理学—半导体物理]