Realizing 19.05% Efficiency Polymer Solar Cells by Progressively Improving Charge Extraction and Suppressing Charge Recombination

• Published in: Advanced materials (Weinheim) Vol. 34; no. 13; pp. e2109516 - n/a
• Main Authors: Chong, Kaien, Xu, Xiaopeng, Meng, Huifeng, Xue, Jingwei, Yu, Liyang, Ma, Wei, Peng, Qiang
• Format: Journal Article
• Language: English
• Published: Germany Wiley Subscription Services, Inc 01.04.2022
• Subjects: Additives; charge extraction and recombination; Circuits; Crystal structure; Crystallinity; Energy conversion efficiency; Fluorination; Materials science; nonfullerene acceptors; Phase separation; Photovoltaic cells; polymer solar cells; Polymers; Solar cells; Steric hindrance; ternary blends; volatilizable solid additives; charge extraction and recombination; polymer solar cells; nonfullerene acceptors; volatilizable solid additives; ternary blends

Improving charge extraction and suppressing charge recombination are critically important to minimize the loss of absorbed photons and improve the device performance of polymer solar cells (PSCs). In this work, highly efficient PSCs are demonstrated by progressively improving the charge extraction a...