Issue 17, 2019

Diketopyrrolopyrrole-based conjugated materials for non-fullerene organic solar cells

Abstract

Non-fullerene organic solar cells (NFOSCs) have attracted much attention in recent years since non-fullerene conjugated materials show many advantages, such as structural versatility, tunable absorption, energy levels and crystallinity compared to fullerene derivatives with limited material selection. Therefore, NFOSCs have achieved high power conversion efficiencies over 15%. Innovation of conjugated materials is the key factor to improve the photovoltaic performance. The diketopyrrolopyrrole (DPP) unit has been widely incorporated into conjugated materials with near-infrared (NIR) absorption spectra due to its strong electron-withdrawing ability. DPP-based conjugated materials also show strong crystallinity and high hole/electron mobilities, indicating that they can be used as both electron donors and electron acceptors in organic solar cells. In this review, we have focused on DPP-based conjugated materials for application in NFOSCs, including (i) DPP-based polymer donors, (ii) DPP-based small molecule donors, (iii) DPP-based polymer acceptors and (iv) DPP-based small molecule acceptors. We will highlight the structural design in these materials, and the selection of donors/acceptors to match with DPP-based conjugated materials. In the last part, we will provide perspectives about the design of DPP-based materials for application in NFOSCs in the future.

Graphical abstract: Diketopyrrolopyrrole-based conjugated materials for non-fullerene organic solar cells

Article information

Article type
Review Article
Submitted
21 Febr. 2019
Accepted
25 Marts 2019
First published
25 Marts 2019

J. Mater. Chem. A, 2019,7, 10174-10199

Diketopyrrolopyrrole-based conjugated materials for non-fullerene organic solar cells

C. Zhao, Y. Guo, Y. Zhang, N. Yan, S. You and W. Li, J. Mater. Chem. A, 2019, 7, 10174 DOI: 10.1039/C9TA01976F

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