相关实验视频

Updated: Jan 4, 2026

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells

Published on: March 19, 2017

通过使用固有的α相formidinium酸带隙来实现高效,稳定的太阳能电池

Hanul Min¹, Maengsuk Kim¹, Seung-Un Lee¹

¹Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, Korea.

Science (New York, N.Y.)

|November 9, 2019

概括

甲基二化 (MDACl2) 有效地稳定三化 (FAPbI3) 矿太阳能电池. 在长时间暴露在阳光下,这种新的注方法提高了运行稳定性,并保持了高功率转换效率.

科学领域:

材料科学
可再生能源
固态化学

背景情况:

三化 (FAPbI3) 是矿太阳能电池的一个有希望的材料,但它的黑色α相需要稳定.
常见的添加剂如甲基 (MA),和可以提高稳定性,但会对带隙和热性能产生负面影响.

研究的目的:

研究甲二 (MDACl2) 作为一种用于稳定矿太阳能电池中的α-FAPbI3相的新型剂.
评估MDACl2兴奋剂对这些设备的光伏性能和运行稳定性的影响.

主要方法:

用MDACl2对FAPbI3进行注.
矿太阳能电池的制造和特征.
在模拟的阳光下进行性能测试,并进行最大功率点跟踪.
加速老化试验包括热和环境条件暴露.

主要成果:

达到26.1至26.7mA/cm2之间的认证短路电流密度.
获得了23.7%的认证功率转换效率 (PCE).
设备在充分阳光下运行600小时后保持超过90%的初始PCE.
在20小时的150°C空气火后,未封装的器件保留了90%以上的PCE.
与使用MAPbBr3稳定的控制装置相比,证明了优异的热和湿度稳定性.

结论:

MDACl2是稳定α-FAPbI3阶段的有效补充剂,克服了传统添加剂的局限性.
使用MDACl2的矿太阳能电池具有卓越的长期运行稳定性和高的PCE.
这些发现为开发高稳定性和高效的矿太阳能电池提供了可行的策略.

更多相关视频

Solution-Processed "Silver-Bismuth-Iodine" Ternary Thin Films for Lead-Free Photovoltaic Absorbers

Solution-Processed "Silver-Bismuth-Iodine" Ternary Thin Films for Lead-Free Photovoltaic Absorbers

Published on: September 27, 2018

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films

Published on: September 8, 2017

相关概念视频

P-N junction

P-N junction

A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...