通过简单的润湿性处理提高基于P3CT-Na的MAPbI太阳能电池的效率

Efficiency improvement of P3CT-Na based MAPbIsolar cells with a simple wetting process.

作者信息

Kassou Said, Wu Jia-Ren, Thakur Diksha, Chandel Anjali, Chiang Shou-En, Cheng Kai-Jen, Chen Sheng-Hui, Shen Ji-Lin, Chang Sheng Hsiung

机构信息

Department of Physics, Chung Yuan Christian University, Taoyuan 320314, Taiwan, Republic of China.

R&D Center for Membrane Technology and Center for Nanotechnology, Chung Yuan Christian University, Taoyuan 320314, Taiwan, Republic of China.

出版信息

Nanotechnology. 2021 Jun 4;32(34). doi: 10.1088/1361-6528/ac0380.

DOI:10.1088/1361-6528/ac0380

PMID:34015780

Abstract

The averaged power conversion efficiency of polyelectrolytes (P3CT-Na) based MAPbIsolar cells can be increased from 14.94% to 17.46% with a wetting method before the spin-coating process of MAPbIprecursor solutions. The effects of the wetting process on the surface, structural, optical and excitonic properties of MAPbIthin films are investigated by using the atomic-force microscopic images, x-ray diffraction patterns, transmittance spectra, photoluminescence spectra and Raman scattering spectra. The experimental results show that the wetting process of MAPbIprecursor solution on top of the P3CT-Na/ITO/glass substrate can be used to manipulate the molecular packing structure of the P3CT-Na thin film, which determines the formation of MAPbIthin films.

摘要

在MAPbI前驱体溶液旋涂工艺之前采用一种润湿性方法，基于聚电解质（P3CT-Na）的MAPbI太阳能电池的平均功率转换效率可从14.94%提高到17.46%。利用原子力显微镜图像、X射线衍射图谱、透射光谱、光致发光光谱和拉曼散射光谱研究了润湿性工艺对MAPbI薄膜的表面、结构、光学和激子特性的影响。实验结果表明，MAPbI前驱体溶液在P3CT-Na/ITO/玻璃衬底上的润湿性工艺可用于操控P3CT-Na薄膜的分子堆积结构，而这种结构决定了MAPbI薄膜的形成。