期刊
CHEMISTRY OF MATERIALS
卷 29, 期 3, 页码 1309-1314出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.chemmater.6b04862
关键词
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资金
- NSERC [435715-2013]
- CFI John Evans Leadership Fund [34102]
- Canada Research Chairs Program
- University of Calgary
- NSERC
- Ministere de la Recherche
A perylene diimide (PDI) flanked diketopyrrolopyrrole (DPP) pi-conjugated small molecule has been synthesized through an efficient and sustainable direct heteroarylation protocol. When paired with the donor polymer PTB7-Th, air-processed and tested bulk-heterojunction (BHJ) organic solar cells (OSCs) achieved a high power conversion efficiency (PCE) of 5.6%. The new acceptor showed favorable morphological changes upon solvent vapor annealing leading to a near 3-fold increase in PCE. This result is among the best reported utilizing DPP-based acceptors in air-processed and tested OSCs. All solar cells exhibited good air and light stability over a 35-day evaluation period.
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