Rasool Shafket, Yeop Jiwoo, An Na Gyeong, Kim Jae Won, Kim Jin Young
School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, Ulsan, 44919, South Korea.
Department of Chemical and Biological Engineering, Monash University, Victoria, 3800, Australia.
Small Methods. 2024 Feb;8(2):e2300578. doi: 10.1002/smtd.202300578. Epub 2023 Aug 30.
Over the past couple of decades, immense research has been carried out to understand the photo-physics of an organic solar cell (OSC) that is important to enhance its efficiency and stability. Since OSCs undergoes complex photophysical phenomenon, studying these factors has led to designing new materials and implementing new strategies to improve efficiency in OSCs. In this regard, the invention of the non-fullerene acceptorshas greatly revolutionized the understanding of the fundamental processes occurring in OSCs. However, such vital fundamental research from device physics perspectives is carried out on glovebox (GB) processed OSCs and there is a scarcity of research on air-processed (AP) OSCs. This review will focus on charge carrier dynamics such as exciton diffusion, exciton dissociation, charge-transfer states, significance of highest occupied molecular orbital-offsets, and hole-transfer efficiencies of GB-OSCs and compare them with the available data from the AP-OSCs. Finally, key requirements for the fabrication of efficient AP-OSCs will be presented from a charge-carrier dynamics perspective. The key aspects from the charge-carrier dynamics view to fabricate efficient OSCs either from GB or air are provided.
在过去几十年里，人们进行了大量研究以了解有机太阳能电池（OSC）的光物理特性，这对于提高其效率和稳定性至关重要。由于有机太阳能电池会经历复杂的光物理现象，对这些因素的研究促使人们设计新材料并实施新策略来提高有机太阳能电池的效率。在这方面，非富勒烯受体的发明极大地改变了人们对有机太阳能电池中发生的基本过程的理解。然而，这种从器件物理角度进行的至关重要的基础研究是在手套箱（GB）处理的有机太阳能电池上开展的，而关于空气处理（AP）的有机太阳能电池的研究却很匮乏。本综述将聚焦于电荷载流子动力学，如激子扩散、激子解离、电荷转移态、最高占据分子轨道偏移的意义以及手套箱处理的有机太阳能电池的空穴转移效率，并将它们与空气处理的有机太阳能电池的现有数据进行比较。最后，将从电荷载流子动力学角度提出制造高效空气处理的有机太阳能电池的关键要求。本文提供了从电荷载流子动力学角度制造高效手套箱处理或空气处理的有机太阳能电池的关键要点。
