Efficiency improvement of P3CT-Na based MAPbI3 solar cells with a simple wetting process. (4th June 2021)

• Record Type: Journal Article
• Authors: Kassou, Said; Wu, Jia-Ren; Thakur, Diksha; Chandel, Anjali; Chiang, Shou-En; Cheng, Kai-Jen; Chen, Sheng-Hui; Shen, Ji-Lin; Chang, Sheng Hsiung
• Is Part Of: Nanotechnology. Volume 32:Number 34(2021)
• Publication Date: 2021-06-04
• Subjects: P3CT-Na thin film -- wetting process -- stable inverted-type MAPbI3 solar cells; Nanotechnology -- Periodicals; Nanotechnology -- Periodicals; Nanotechnology; Publications périodiques; Nanotechnologies; Periodicals; 620.5
• DOI: 10.1088/1361-6528/ac0380
• Languages: English
• ISSNs: 0957-4484

Abstract

Abstract: The averaged power conversion efficiency of polyelectrolytes (P3CT-Na) based MAPbI3 solar cells can be increased from 14.94% to 17.46% with a wetting method before the spin-coating process of MAPbI3 precursor solutions. The effects of the wetting process on the surface, structural, optical and excitonic properties of MAPbI3 thin 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 MAPbI3 precursor 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 MAPbI3 thin films.