Black Phosphorous Quantum Dots Sandwiched Organic Solar Cells

Yifan Wang, Jie Li, Tengfei Li, Jiayu Wang, Kuan Liu, Qianqian Jiang, Jianguo Tang, Xiaowei Zhan

    Research output: Journal article publicationJournal articleAcademic researchpeer-review

    40 Citations (Scopus)

    Abstract

    Black phosphorous quantum dots (BPQDs) possess ambipolar charge transport, high mobility, and a tunable direct bandgap. Here, liquid-exfoliated BPQDs are used as interlayers to modify both the electron transport layer and hole transport layer in organic solar cells (OSCs). The incorporation of BPQDs is beneficial to the formation of a cascade band structure and electron/hole transfer and extraction. The power conversion efficiency of the BPQDs-incorporated OSC based on PTB7-Th:FOIC blend is enhanced from 11.8% to 13.1%. In addition, power conversion efficiency enhancement is also achieved for other nonfullerene and fullerene-based devices, demonstrating the universality of this interlayer methodology.

    Original languageEnglish
    Article number1903977
    JournalSmall
    Volume15
    Issue number47
    DOIs
    Publication statusPublished - 1 Nov 2019

    Keywords

    • black phosphorous quantum dots
    • interlayer
    • nonfullerene
    • organic solar cells

    ASJC Scopus subject areas

    • Biotechnology
    • Biomaterials
    • General Chemistry
    • General Materials Science

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