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Issue 28, 2018
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Design and synthesis of medium-bandgap small-molecule electron acceptors for efficient tandem solar cells

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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

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Supplementary files

Article information


Submitted
11 May 2018
Accepted
25 Jun 2018
First published
27 Jun 2018

J. Mater. Chem. A, 2018,6, 13588-13592
Article type
Communication

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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