Journal ArticleDOI
An electron acceptor challenging fullerenes for efficient polymer solar cells.
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TLDR
A novel non-fullerene electron acceptor (ITIC) that overcomes some of the shortcomings of fullerene acceptors, for example, weak absorption in the visible spectral region and limited energy-level variability, is designed and synthesized.Abstract:
A novel non-fullerene electron acceptor (ITIC) that overcomes some of the shortcomings of fullerene acceptors, for example, weak absorption in the visible spectral region and limited energy-level variability, is designed and synthesized. Fullerene-free polymer solar cells (PSCs) based on the ITIC acceptor are demonstrated to exhibit power conversion effi ciencies of up to 6.8%, a record for fullerene-free PSCs.read more
Citations
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Recent advances in stability of organic solar cells
TL;DR: The mechanisms of the instability in OSC devices are discussed, a series of solutions that improve the stability are proposed and some guidelines to address the instability of OSCs for feasible commercialization in the future are provided.
Journal ArticleDOI
Conjugated polymer acceptors based on fused perylene bisimides with a twisted backbone for non-fullerene solar cells
Xudong Jiang,Xudong Jiang,Yunhua Xu,Xiaohui Wang,Fan Yang,Andong Zhang,Cheng Li,Wei Ma,Weiwei Li +8 more
TL;DR: In this paper, a new strategy to use fused and twisted conjugated backbones to construct conjugations small molecules and polymers as electron acceptors for non-fullerene solar cells was presented.
Journal ArticleDOI
Effect of Side-Chain Engineering of Bithienylbenzodithiophene-alt-fluorobenzotriazole-Based Copolymers on the Thermal Stability and Photovoltaic Performance of Polymer Solar Cells
He Huang,Haijun Bin,Zhengxing Peng,Beibei Qiu,Chenkai Sun,Alexander Liebman-Peláez,Zhi-Guo Zhang,Chenhui Zhu,Harald Ade,Zhanjun Zhang,Yongfang Li,Yongfang Li +11 more
TL;DR: Wang et al. as discussed by the authors designed and synthesized three new 2D-conjugated polymers J62, J63, and J64 with different types of side chains to further investigate the effect of side chain on their physicochemical and photovoltaic properties.
Journal ArticleDOI
Multi-component non-fullerene acceptors with tunable bandgap structures for efficient organic solar cells
TL;DR: A ternary organic solar cell, consisting of two compatible non-fullerene acceptors and one wide band-gap donor, with a high efficiency of over 14% is reported in this paper.
Journal ArticleDOI
Isomeric Effects of Solution Processed Ladder-Type Non-Fullerene Electron Acceptors
Yongxi Li,Yongxi Li,Lian Zhong,Jiu-Dong Lin,Fu-Peng Wu,Haijun Bin,Zhanjun Zhang,Lai Xu,Zuo-Quan Jiang,Zhang Zhiguo,Feng Liu,Thomas P. Russell,Li Yongfang,Liang-Sheng Liao,Stephen R. Forrest +14 more
TL;DR: In this paper, the role of electronic structure and thin film morphology is investigated in determining charge transfer and electron coupling due to orbital interactions in two isomeric non-fullerene acceptors with the structure of acceptor-donor acceptor.
References
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Journal ArticleDOI
Polymer photovoltaic cells : enhanced efficiencies via a network of internal donor-acceptor heterojunctions
TL;DR: In this paper, the carrier collection efficiency and energy conversion efficiency of polymer photovoltaic cells were improved by blending of the semiconducting polymer with C60 or its functionalized derivatives.
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Enhanced power-conversion efficiency in polymer solar cells using an inverted device structure
TL;DR: In this article, the authors showed that PFN can be incorporated into polymer light-emitting devices (PLEDs) to enhance electron injection from high-work-function metals such as aluminium (work function w of 4.3 eV) and gold (w ¼ 5.2 eV).
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Semiconducting π-conjugated systems in field-effect transistors: a material odyssey of organic electronics.
TL;DR: The focus of this review will be on the performance analysis of π-conjugated systems in OFETs, a kind of device consisting of an organic semiconducting layer, a gate insulator layer, and three terminals that provide an important insight into the charge transport of ρconjugate systems.
Journal ArticleDOI
A polymer tandem solar cell with 10.6% power conversion efficiency
Jingbi You,Letian Dou,Ken Yoshimura,Takehito Kato,Kenichiro Ohya,Tom Moriarty,Keith Emery,Chun-Chao Chen,Jing Gao,Gang Li,Yang Yang +10 more
TL;DR: The development of a high-performance low bandgap polymer that enables a solution processed tandem solar cell with certified 10.6% power conversion efficiency under standard reporting conditions, which is the first certified polymer solar cell efficiency over 10%.
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Molecular design of photovoltaic materials for polymer solar cells: toward suitable electronic energy levels and broad absorption.
TL;DR: This Account discusses the basic requirements and scientific issues in the molecular design of high efficiency photovoltaic molecules, and summarizes recent progress in electronic energy level engineering and absorption spectral broadening of the donor and acceptor photvoltaic materials by my research group and others.