首页|Interchain hydrogen-bonded conjugated polymer for enhancing the stability of organic solar cells
Interchain hydrogen-bonded conjugated polymer for enhancing the stability of organic solar cells
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NSTL
Elsevier
Operational stability of organic solar cells (OSCs) is a key issue for the commercialization. In order to enhance the stability of OSCs, various strategies are being used. In this study, pyrroles and isoindigo monomers with tert-butoxycarbonyl side chains were synthesized and used to prepare a D-A-type polymer, P(TBPyTBIID), via Stille coupling. The obtained polymer dissolved readily in organic solvents, such as chloroform. However, the formation of interchain hydrogen bonds after side-chain cleavage via thermal treatment rendered the resulting polymer insoluble in organic solvents. In addition, strong 1t center dot center dot center dot 1t stacking due to face-on orientation enabled dense packing of the structure, which led to an increase in resistances to organic solvents, acid, and ultraviolet (UV) light. P(TBPyTBIID) was introduced as a UV and external protective layer, along with silver nanoparticles, at the back surface of the glass substrate. The lightsoaking stability was enhanced without significantly reducing the efficiencies of the organic solar cells. This work indicates that introducing an UV blocking layer can be an effective strategy to increase the stability of organic solar cells.(c) 2022 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
Organic solar cellsD -A copolymerThermal chain cleavageInterchain hydrogen-bondingUV-blocking layerStabilityPERFORMANCECOPOLYMERSFILMSCORE
Yang, Nam Gyu、Jeon, Sung Jae、Kim, Young Hoon、Lee, Hyoung Seok、Hong, Dong Hyun、Moon, Doo Kyung
NSTL
Elsevier
