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Anthracene-based perylene diimide electron-acceptor for fullerene-free organic solar cells

Authors
Park, MinwooJung, Jae Woong
Issue Date
Aug-2017
Publisher
ELSEVIER SCI LTD
Keywords
Non-fullerene; Electron acceptor; Perylene diimide; Organic solar cells
Citation
DYES AND PIGMENTS, v.143, pp 301 - 307
Pages
7
Journal Title
DYES AND PIGMENTS
Volume
143
Start Page
301
End Page
307
URI
https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/8209
DOI
10.1016/j.dyepig.2017.04.057
ISSN
0143-7208
1873-3743
Abstract
Non-fullerene electron-acceptor is an interesting class for advancement in organic solar cells. We herein report design and synthesis of An(PDI)(2) which is composed of anthracene (An) as electron-rich core flanked with electron-deficient perylene diimide (PDI) to use in organic solar cells (OSCs) as an electron acceptor. The acceptor-donor-acceptor alternating structure afforded extended absorption range to 800 nm with suitable energy levels as an electron-acceptor. Despite An and PDI are highly conjugated molecules, An(PDI)(2) possesses slightly twisted architecture, which would limit severe aggregation of the molecules. For the purpose to optimize power conversion efficiency (PCE) of OSCs using An(PDI)(2), the morphology of the photoactive blend film was tuned by solvent mixture system. Through the careful optimization, the solar cell device achieved PCE up to 5.42% with a V-oc of 0.83 V, a J(sc) of 10.88 mA/cm(2) and FF of 0.60. This work suggests the potential of An(PDI)(2) as a promising non-fullerene acceptor molecule to be utilized in OSC applications. (C) 2017 Elsevier Ltd. All rights reserved.
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공과대학 (화공생명공학부)
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