首页|Stable Organic Solar Cells Enabled by Simultaneous Hole and Electron Interlayer Engineering

Stable Organic Solar Cells Enabled by Simultaneous Hole and Electron Interlayer Engineering

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The development of high-performance organic solar cells(OSCs)with high operational stability is essential to accelerate their commercialization.Unfortunately,our understanding of the origin of instabilities in state-of-the-art OSCs based on bulk heterojunction(BHJ)featuring non-fullerene acceptors(NFAs)remains limited.Herein,we developed NFA-based OSCs using different charge extraction interlayer materials and studied their storage,thermal,and operational stabilities.Despite the high power conversion efficiency(PCE)of the OSCs(17.54％),we found that cells featuring self-assembled monolayers(SAMs)as hole-extraction interlayers exhibited poor stability.The time required for these OSCs to reach 80％of their initial performance(T80)was only 6h under continuous thermal stress at 85 ℃ in a nitrogen atmosphere and 1 h under maximum power point tracking(MPPT)in a vacuum.Inserting MoOx between ITO and SAM enhanced the T80 to 50 and～15 h after the thermal and operational stability tests,respectively,while maintaining a PCE of 16.9％.Replacing the organic PDINN electron transport layer with ZnO NPs further enhances the cells'thermal and operational stability,boosting the T80 to 1000 and 170 h,respectively.Our work reveals the synergistic roles of charge-selective interlayers and device architecture in developing efficient and stable OSCs.

interlayersmetal oxideorganic solar cellsself-assembled monolayersstability

Wisnu Tantyo Hadmojo、Furkan H.Isikgor、Yuanbao Lin、Zhaoheng Ling、Qiao He、Hendrik Faber、Emre Yengel、Roshan Ali、Abdus Samad、Ryanda Enggar Anugrah Ardhi、Sang Young Jeong、Han Young Woo、Udo Schwingenschl?gl、Martin Heeney、Thomas D.Anthopoulos

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KAUST Solar Center(KSC),Physical Sciences and Engineering Division(PSE),King Abdullah University of Science and Technology(KAUST),Thuwal 23955-6900,Saudi Arabia

Department of Chemistry and Centre for Processable Electronics,Imperial College London,London W12 0BZ,UK

Department of Chemistry,Korea University,Seoul 02841,Korea

King Abdullah University of Science and Technology(KAUST)office of Research Administration(ORA)King Abdullah University of Science and Technology(KAUST)office of Research Administration(ORA)National Research Foundation of Korea

OSR-CCF-3079OSR-2016-CRG5-30292019R1A6A1A11044070

2024

10.1002/eem2.12712

能源与环境材料(英文)

能源与环境材料(英文)

ISSN：
年,卷(期)：2024.7(5)