Issue 28, 2018

Design and synthesis of medium-bandgap small-molecule electron acceptors for efficient tandem solar cells

Abstract

Medium-bandgap small-molecule acceptors including YITI-0F, YITI-2F, and YITI-4F with a thiophene π-bridge are designed and synthesized. The PBDB-T:YITI-2F-based device shows the best photovoltaic performance with a PCE of up to 10.05%, a Voc of 0.93 V, a Jsc of 15.54 mA cm−2 and a FF of 69%. Tandem devices are fabricated by applying it as a front cell and the PTB7-Th:ATT-2-based device as a rear cell, giving a high PCE up to 11.86%.

Graphical abstract: Design and synthesis of medium-bandgap small-molecule electron acceptors for efficient tandem solar cells

Supplementary files

Article information

Article type
Communication
Submitted
11 May 2018
Accepted
25 Jun 2018
First published
27 Jun 2018

J. Mater. Chem. A, 2018,6, 13588-13592

Design and synthesis of medium-bandgap small-molecule electron acceptors for efficient tandem solar cells

Q. Yue, Z. Zhou, S. Xu, J. Zhang and X. Zhu, J. Mater. Chem. A, 2018, 6, 13588 DOI: 10.1039/C8TA04405H

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