首页|Non-Fullerene-Based Inverted Organic Photovoltaic Device with Long-Term Stability

Non-Fullerene-Based Inverted Organic Photovoltaic Device with Long-Term Stability

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In this work,we developed the PM6:Y6-based inverted structure organic photovoltaic(i-OPV)with improved power conversion efficiency(PCE)and long-term stability by resolving the origins of the performance deterioration.The deep defects between the metal oxide-based electron transport layer and bulk-heterojunction photoactive layer interface were responsible for suboptimal PCE and facilitated degradation of devices.While the density of deep traps is increased during the storage of i-OPV,the penetrative oxygen-containing defects additionally generated shallow traps below the band-edge of Y6,causing an additional loss in the open-circuit voltage.The suppression of interfacial defects by chemical modification effectively improved the PCE and long-term stability of i-OPV.The modified i-OPV(mi-OPV)achieved a PCE of 17.42％,which is the highest value among the reported PM6:Y6-based i-OPV devices.Moreover,long-term stability was significantly improved:～90％and～80％retention of its initial PCE after 1200 h of air storage and illumination,respectively.

deep trapinverted structurelong-term stabilityorganic photovoltaicpower conversion efficiency

Do Hui Kim、Febrian T.A.Wibowo、Dongchan Lee、Narra V.Krishna、Sujung Park、Shinuk Cho、Sung-Yeon Jang

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Department of Physics and Energy Harvest Storage Research Center,University of Ulsan,Ulsan 44610,Republic of Korea

School of Energy and Chemical Engineering,Ulsan National Institute of Science and Technology(UNIST),50 UNIST-gil,Ulsan 44919,Republic of Korea

韩国国家研究基金会项目韩国国家研究基金会项目韩国国家研究基金会项目韩国国家研究基金会项目韩国国家研究基金会项目韩国国家研究基金会项目

2020R1A2C10039292019R1A6A1A110538382020M1A2A20807462021M2E8A10441982016R1A5A10129662021M3H4A1A0

2023

10.1002/eem2.12381

能源与环境材料(英文)

能源与环境材料(英文)

CSCD
ISSN：
年,卷(期)：2023.6(3)
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