Small-Molecule Electron Acceptors for Efficient Non-fullerene Organic Solar Cells

The development of organic electron acceptor materials is one of the key factors for realizing high performance organic solar cells. Compared to traditional fullerene acceptor materials, non-fullerene electron acceptors have attracted much attention due to their better optoelectronic tunabilities an...

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Main Authors: Zhenzhen Zhang, Jun Yuan, Qingya Wei, Yingping Zou
Format: Article
Language:English
Published: Frontiers Media S.A. 2018-09-01
Series:Frontiers in Chemistry
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fchem.2018.00414/full
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author Zhenzhen Zhang
Jun Yuan
Qingya Wei
Yingping Zou
author_facet Zhenzhen Zhang
Jun Yuan
Qingya Wei
Yingping Zou
author_sort Zhenzhen Zhang
collection DOAJ
description The development of organic electron acceptor materials is one of the key factors for realizing high performance organic solar cells. Compared to traditional fullerene acceptor materials, non-fullerene electron acceptors have attracted much attention due to their better optoelectronic tunabilities and lower cost as well as higher stability. Non-fullerene organic solar cells have recently experienced a rapid increase with power conversion efficiency of single-junction devices over 14% and a bit higher than 15% for tandem solar cells. In this review, two types of promising small-molecule electron acceptors are discussed: perylene diimide based acceptors and acceptor(A)-donor(D)-acceptor(A) fused-ring electron acceptors, focusing on the effects of structural modification on absorption, energy levels, aggregation and performances. We strongly believe that further development of non-fullerene electron acceptors will hold bright future for organic solar cells.
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spelling doaj.art-6026d3efa88845f1afb75843e8634d932022-12-21T18:42:28ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462018-09-01610.3389/fchem.2018.00414408617Small-Molecule Electron Acceptors for Efficient Non-fullerene Organic Solar CellsZhenzhen ZhangJun YuanQingya WeiYingping ZouThe development of organic electron acceptor materials is one of the key factors for realizing high performance organic solar cells. Compared to traditional fullerene acceptor materials, non-fullerene electron acceptors have attracted much attention due to their better optoelectronic tunabilities and lower cost as well as higher stability. Non-fullerene organic solar cells have recently experienced a rapid increase with power conversion efficiency of single-junction devices over 14% and a bit higher than 15% for tandem solar cells. In this review, two types of promising small-molecule electron acceptors are discussed: perylene diimide based acceptors and acceptor(A)-donor(D)-acceptor(A) fused-ring electron acceptors, focusing on the effects of structural modification on absorption, energy levels, aggregation and performances. We strongly believe that further development of non-fullerene electron acceptors will hold bright future for organic solar cells.https://www.frontiersin.org/article/10.3389/fchem.2018.00414/fullorganic solar cellsefficiencysmall moleculefused ringperylene diimide
spellingShingle Zhenzhen Zhang
Jun Yuan
Qingya Wei
Yingping Zou
Small-Molecule Electron Acceptors for Efficient Non-fullerene Organic Solar Cells
Frontiers in Chemistry
organic solar cells
efficiency
small molecule
fused ring
perylene diimide
title Small-Molecule Electron Acceptors for Efficient Non-fullerene Organic Solar Cells
title_full Small-Molecule Electron Acceptors for Efficient Non-fullerene Organic Solar Cells
title_fullStr Small-Molecule Electron Acceptors for Efficient Non-fullerene Organic Solar Cells
title_full_unstemmed Small-Molecule Electron Acceptors for Efficient Non-fullerene Organic Solar Cells
title_short Small-Molecule Electron Acceptors for Efficient Non-fullerene Organic Solar Cells
title_sort small molecule electron acceptors for efficient non fullerene organic solar cells
topic organic solar cells
efficiency
small molecule
fused ring
perylene diimide
url https://www.frontiersin.org/article/10.3389/fchem.2018.00414/full
work_keys_str_mv AT zhenzhenzhang smallmoleculeelectronacceptorsforefficientnonfullereneorganicsolarcells
AT junyuan smallmoleculeelectronacceptorsforefficientnonfullereneorganicsolarcells
AT qingyawei smallmoleculeelectronacceptorsforefficientnonfullereneorganicsolarcells
AT yingpingzou smallmoleculeelectronacceptorsforefficientnonfullereneorganicsolarcells