Self-Stimulated Dissociation in Non-Fullerene Organic Bulk-Heterojunction Solar Cells

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)2443-2457
Journal / PublicationJoule
Volume4
Issue number11
Online published8 Oct 2020
Publication statusPublished - 18 Nov 2020
Externally publishedYes

Abstract

Non-fullerene bulk-heterojunctions have shown an emerging driving force to realize resistance-free dissociation with energetic order toward developing high-efficiency photovoltaics. Here, by monitoring the dissociation at D:A interfaces with our magnetic field effects of photocurrent, we discovered that the self-stimulated dissociation occurs in the non-fullerene bulk-heterojunction (PM6:Y6) solar cells at the condition that the non-fullerene Y6 molecules are once optically excited to generate a photoinduced dipolar polarization. Here, the self-stimulated dissociation is a unique phenomenon to realize the resistance-free dissociation in non-fullerene organic solar cells, as against other solar cells, which lack self-stimulated dissociation mechanism. Therefore, our work provides much deeper understanding on the operating mechanism of generating photovoltaic actions to further advance non-fullerene bulk-heterojunction solar cells.

Research Area(s)

  • magneto-photocurrent, non-fullerene organic solar cells, organic bulk-heterojunctions, photoinduced polarization, self-stimulated dissociation

Citation Format(s)

Self-Stimulated Dissociation in Non-Fullerene Organic Bulk-Heterojunction Solar Cells. / Zhu, Xixiang; Zhang, Guichuan; Zhang, Jia; Yip, Hin-Lap; Hu, Bin.

In: Joule, Vol. 4, No. 11, 18.11.2020, p. 2443-2457.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review