skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Enhancement in Open-Circuit Voltage in Organic Solar Cells by Using Ladder-Type Nonfullerene Acceptors

Abstract

The open-circuit voltage (Voc) loss has always been a major factor in lowering power conversion efficiencies (PCEs) in bulk heterojunction organic photovoltaic cells (OPVs). A method to improve the Voc is indispensable to achieve high PCEs. Here in this paper, we investigated a series of perylene diimide-based ladder-type molecules as electron acceptors in nonfullerene OPVs. The D-A ladder-type structures described here lock our pi-systems into a planar structure and eliminate bond twisting associated with linear conjugated systems. This enlarges the interface energy gap (ΔEDA), extends electronic delocalization, and hence improves the Voc. More importantly, these devices showed an increase in Voc without compromising either the Jsc or the FF. C5r exhibited a strong intermolecular interaction and a PCE value of 6.1%. Moreover, grazing-incident wide-angle X-ray scattering analysis and atomic force microscopy images suggested that our fused-ring acceptors showed a suitable domain size and uniform blend films, which were not affected by their rigid molecular structures.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC) (United States). Center for Light Energy Activated Redox Processes (LEAP); Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
OSTI Identifier:
1438253
Grant/Contract Number:  
AC02-06CH11357; SC0001059
Resource Type:
Accepted Manuscript
Journal Name:
ACS Applied Materials and Interfaces
Additional Journal Information:
Journal Volume: 10; Journal Issue: 16; Journal ID: ISSN 1944-8244
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; ladder-type molecules; nonfullerene acceptor; open-circuit voltage improvement; organic solar cells; ring-fusing effect

Citation Formats

Cai, Zhengxu, Zhao, Donglin, Sharapov, Valerii, Awais, Mohammad A., Zhang, Na, Chen, Wei, and Yu, Luping. Enhancement in Open-Circuit Voltage in Organic Solar Cells by Using Ladder-Type Nonfullerene Acceptors. United States: N. p., 2018. Web. https://doi.org/10.1021/acsami.8b01308.
Cai, Zhengxu, Zhao, Donglin, Sharapov, Valerii, Awais, Mohammad A., Zhang, Na, Chen, Wei, & Yu, Luping. Enhancement in Open-Circuit Voltage in Organic Solar Cells by Using Ladder-Type Nonfullerene Acceptors. United States. https://doi.org/10.1021/acsami.8b01308
Cai, Zhengxu, Zhao, Donglin, Sharapov, Valerii, Awais, Mohammad A., Zhang, Na, Chen, Wei, and Yu, Luping. Wed . "Enhancement in Open-Circuit Voltage in Organic Solar Cells by Using Ladder-Type Nonfullerene Acceptors". United States. https://doi.org/10.1021/acsami.8b01308. https://www.osti.gov/servlets/purl/1438253.
@article{osti_1438253,
title = {Enhancement in Open-Circuit Voltage in Organic Solar Cells by Using Ladder-Type Nonfullerene Acceptors},
author = {Cai, Zhengxu and Zhao, Donglin and Sharapov, Valerii and Awais, Mohammad A. and Zhang, Na and Chen, Wei and Yu, Luping},
abstractNote = {The open-circuit voltage (Voc) loss has always been a major factor in lowering power conversion efficiencies (PCEs) in bulk heterojunction organic photovoltaic cells (OPVs). A method to improve the Voc is indispensable to achieve high PCEs. Here in this paper, we investigated a series of perylene diimide-based ladder-type molecules as electron acceptors in nonfullerene OPVs. The D-A ladder-type structures described here lock our pi-systems into a planar structure and eliminate bond twisting associated with linear conjugated systems. This enlarges the interface energy gap (ΔEDA), extends electronic delocalization, and hence improves the Voc. More importantly, these devices showed an increase in Voc without compromising either the Jsc or the FF. C5r exhibited a strong intermolecular interaction and a PCE value of 6.1%. Moreover, grazing-incident wide-angle X-ray scattering analysis and atomic force microscopy images suggested that our fused-ring acceptors showed a suitable domain size and uniform blend films, which were not affected by their rigid molecular structures.},
doi = {10.1021/acsami.8b01308},
journal = {ACS Applied Materials and Interfaces},
number = 16,
volume = 10,
place = {United States},
year = {2018},
month = {3}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 2 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Research opportunities to advance solar energy utilization
journal, January 2016


    Works referencing / citing this record:

    Interplay of exciton–excimer dynamics in 9,10-diphenylanthracene nanoaggregates and thin films revealed by time-resolved spectroscopic studies
    journal, January 2019

    • Nandi, Amitabha; Manna, Biswajit; Ghosh, Rajib
    • Physical Chemistry Chemical Physics, Vol. 21, Issue 21
    • DOI: 10.1039/c9cp01124b

    Ladder-Type Heteroarene-Based Organic Semiconductors
    journal, August 2018

    • Chen, Jianhua; Yang, Kun; Zhou, Xin
    • Chemistry - An Asian Journal, Vol. 13, Issue 18
    • DOI: 10.1002/asia.201800860

    Side-chain effect of perylene diimide tetramer-based non-fullerene acceptors for improving the performance of organic solar cells
    journal, January 2018

    • Wang, Jianguo; Ma, Lik-Kuen; Huang, Jiachen
    • Materials Chemistry Frontiers, Vol. 2, Issue 11
    • DOI: 10.1039/c8qm00451j

    Ring fusion attenuates the device performance: star-shaped long helical perylene diimide based non-fullerene acceptors
    journal, January 2019

    • Wu, Mingliang; Yi, Jian-Peng; Hu, Juan
    • Journal of Materials Chemistry C, Vol. 7, Issue 31
    • DOI: 10.1039/c9tc02150g