Song Wei, Ye Qinrui, Chen Zhenyu, Ge Jinfeng, Xie Lin, Ge Ziyi
Zhejiang Engineering Research Center for Energy Optoelectronic Materials and Devices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China.
Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China.
Adv Mater. 2024 Sep;36(37):e2311170. doi: 10.1002/adma.202311170. Epub 2024 Jun 8.
Stretchable organic photovoltaics (OPVs) have attracted significant attention as promising power sources for wearable electronic systems owing to their superior robustness under repetitive tensile strains and their good compatibility. However, reconciling a high power-conversion efficiency and a reasonable flexibility is a tremendous challenge. In addition, the development of stretchable OPVs must be accelerated to satisfy the increasing requirements of niche markets for mechanical robustness. Stretchable OPV devices can be classified as either structurally or intrinsically stretchable. This work reviews recent advances in stretchable OPVs, including the design of mechanically robust transparent electrodes, photovoltaic materials, and devices. Initially, an overview of the characteristics and recent research progress in the areas of structurally and intrinsically stretchable OPVs is provided. Subsequently, research into flexible and stretchable transparent electrodes that directly affect the performances of stretchable OPVs is summarized and analyzed. Overall, this review aims to provide an in-depth understanding of the intrinsic properties of highly efficient and deformable active materials, while also emphasizing advanced strategies for simultaneously improving the photovoltaic performance and mechanical flexibility of the active layer, including material design, multi-component settings, and structural optimization.
可拉伸有机光伏器件（OPV）因其在反复拉伸应变下具有卓越的稳健性以及良好的兼容性，作为可穿戴电子系统的潜在电源已引起广泛关注。然而，要兼顾高功率转换效率和合理的柔韧性是一项巨大挑战。此外，为满足利基市场对机械稳健性日益增长的需求，必须加快可拉伸OPV的发展。可拉伸OPV器件可分为结构可拉伸型或本征可拉伸型。本文综述了可拉伸OPV的最新进展，包括机械稳健透明电极、光伏材料和器件的设计。首先，概述了结构可拉伸型和本征可拉伸型OPV的特性及近期研究进展。随后，总结并分析了对可拉伸OPV性能有直接影响的柔性和可拉伸透明电极的研究。总体而言，本综述旨在深入了解高效且可变形活性材料的内在特性，同时强调同步提高活性层光伏性能和机械柔韧性的先进策略，包括材料设计、多组分设置和结构优化。
