Journal ArticleDOI
Regio-Specific Selenium Substitution in Non-Fullerene Acceptors for Efficient Organic Solar Cells
Francis Lin,Lijian Zuo,Ke Gao,Ming Zhang,Sae Byeok Jo,Feng Liu,Alex K.-Y. Jen,Alex K.-Y. Jen +7 more
TLDR
A set of isomeric ladder type non-fullerene acceptors (NFAs) was designed and synthesized to systematically investigate the structure-property relationship of selenium substit... as mentioned in this paper.Abstract:
A set of isomeric ladder type non-fullerene acceptors (NFAs), SRID-4F and TRID-4F, was designed and synthesized to systematically investigate the structure–property relationship of selenium substit...read more
Citations
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Journal ArticleDOI
Selenium Heterocyclic Electron Acceptor with Small Urbach Energy for As-Cast High-Performance Organic Solar Cells.
TL;DR: A facile method of selenium substitution is introduced to reduce the Urbach energy of organic photovoltaic materials to 20.4 meV (Y6Se), which is the lowest value reported for high-performance organic photvoltaic material and very close to those of typical inorganic/hybrid semiconductors, such as crystalline silicon, gallium nitride, and lead-halide perovskite.
Journal ArticleDOI
A Non-fullerene Acceptor with Enhanced Intermolecular π-Core Interaction for High-Performance Organic Solar Cells.
TL;DR: The face-to-face π-core interaction induced by benzo[2,1,3]thiadiazole S-N containing moieties plays a significant role in governing the molecular geometries and unique packing of Y6 and CH1007 to ensure their superior charge-transporting properties.
Journal ArticleDOI
Polymerized small molecular acceptor based all-polymer solar cells with an efficiency of 16.16% via tuning polymer blend morphology by molecular design.
Jiaqi Du,Ke Hu,Jinyuan Zhang,Lei Meng,Jiling Yue,Indunil Angunawela,Hongping Yan,Shucheng Qin,Xiaolei Kong,Zhanjun Zhang,Bo Guan,Harald Ade,Yongfang Li,Yongfang Li +13 more
TL;DR: In this article, the effect of molecular structure on the photovoltaic performance of small molecular acceptors (PSMAs) was investigated in all-polymer solar cells.
Journal ArticleDOI
Over 17% Efficiency Binary Organic Solar Cells with Photoresponses Reaching 1000 nm Enabled by Selenophene-Fused Nonfullerene Acceptors
Feng Qi,Kui Jiang,Francis Lin,Francis Lin,Ziang Wu,Hongna Zhang,Wei Gao,Yuxiang Li,Zongwei Cai,Han Young Woo,Zonglong Zhu,Alex K.-Y. Jen,Alex K.-Y. Jen +12 more
TL;DR: In this paper, the optical absorption of most nonfullerene acceptors is limited within 600-900 nm, preventing further development of organic solar cells, and the authors propose a solution to this problem.
Journal ArticleDOI
Renewed Prospects for Organic Photovoltaics.
Guichuan Zhang,Francis Lin,Feng Xiao Qi,Thomas Heumüller,Andreas Distler,Hans-Joachim Egelhaaf,Ning Li,Philip C. Y. Chow,Christoph J. Brabec,Alex K.-Y. Jen,Hin-Lap Yip +10 more
TL;DR: The development and application of NFAs with an A-D-A configuration (where A = acceptor and D = donor) has enabled devices to have efficient charge generation and small energy losses (Eloss < 0.6 eV), resulting in substantially higher power conversion efficiencies (PCEs) than FA-based devices as discussed by the authors .
References
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Journal ArticleDOI
Single-Junction Organic Solar Cell with over 15% Efficiency Using Fused-Ring Acceptor with Electron-Deficient Core
Jun Yuan,Yunqiang Zhang,Liuyang Zhou,Liuyang Zhou,Guichuan Zhang,Hin-Lap Yip,Tsz-Ki Lau,Xinhui Lu,Can Zhu,Can Zhu,Hongjian Peng,Paul A. Johnson,Mario Leclerc,Yong Cao,Jacek Ulanski,Yongfang Li,Yingping Zou +16 more
TL;DR: In this paper, a ladder-type electron-deficient core-based central fused ring (Dithienothiophen[3.2-b]- pyrrolobenzothiadiazole) with a benzothiadiadiazoles (BT) core was proposed to fine-tune its absorption and electron affinity.
Journal ArticleDOI
An electron acceptor challenging fullerenes for efficient polymer solar cells.
TL;DR: 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.
Journal ArticleDOI
Aggregation and morphology control enables multiple cases of high-efficiency polymer solar cells.
Yuhang Liu,Jingbo Zhao,Zhengke Li,Cheng Mu,Wei Ma,Huawei Hu,Kui Jiang,Haoran Lin,Harald Ade,He Yan +9 more
TL;DR: The uncovered aggregation and design rules yield three high-efficiency (>10%) donor polymers and will allow further synthetic advances and matching of both the polymer and fullerene materials, potentially leading to significantly improved performance and increased design flexibility.
Journal ArticleDOI
Molecular Optimization Enables over 13% Efficiency in Organic Solar Cells
TL;DR: The PBDB-T-SF:IT-4F-based OSC device showed a record high efficiency, and an efficiency of over 12% can be obtained with a thickness of 100-200 nm, suggesting the promise of fullerene-free OSCs in practical applications.
Journal ArticleDOI
Organic solar cells based on non-fullerene acceptors.
TL;DR: Non-fullerene OSCs show great tunability in absorption spectra and electron energy levels, providing a wide range of new opportunities, and this Review highlights these opportunities made possible by NF acceptors.