Issue 45, 2020

Utilizing an electron-deficient thieno[3,4-c]pyrrole-4,6-dione (TPD) unit as a π-bridge to improve the photovoltaic performance of A–π–D–π–A type acceptors

Abstract

The control of intramolecular charge transfer between the fused-ring core and terminal unit by selecting a suitable π-bridge has a strong impact on the photovoltaic performance of A–π–D–π–A type non-fullerene acceptors (NFAs). Here, we used a strong electron-deficient unit, thieno[3,4-c]pyrrole-4,6-dione (TPD), as a π-bridge to synthesize a new NFA, TPD8, which exhibited a low optical bandgap of 1.46 eV. Organic solar cells based on PTQ10:TPD8 gave a power conversion efficiency (PCE) of 10.4% with a relatively high open-circuit voltage (VOC) of 0.91 V and low energy loss of 0.55 eV. This work proved that electron-deficient units were also a good choice for the construction of high-performance A–π–D–π–A type NFAs.

Graphical abstract: Utilizing an electron-deficient thieno[3,4-c]pyrrole-4,6-dione (TPD) unit as a π-bridge to improve the photovoltaic performance of A–π–D–π–A type acceptors

Supplementary files

Article information

Article type
Communication
Submitted
26 септ. 2020
Accepted
13 окт. 2020
First published
14 окт. 2020

J. Mater. Chem. C, 2020,8, 15981-15984

Utilizing an electron-deficient thieno[3,4-c]pyrrole-4,6-dione (TPD) unit as a π-bridge to improve the photovoltaic performance of A–π–D–π–A type acceptors

J. Li, C. Sun, A. Tang, B. Zhang, Q. Guo, E. Zhou and Y. Li, J. Mater. Chem. C, 2020, 8, 15981 DOI: 10.1039/D0TC04601A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements