A comprehensively theoretical and experimental study of carrier generation and transport for achieving high performance ternary blend organic solar cells

Development of 2-dimensional cross-shaped ladder-type TC is promising for achieving high-performance n-type materials and the device using PBDB-T:TC-FIC:PC71BM ternary blend achieves a high efficiency of 13.5%.

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Forced coplanarity of dithienofluorene-based non-fullerene acceptors to achieve high-efficiency organic solar cells

Journal of Materials Chemistry A ◽

10.1039/c9ta05116c ◽

2019 ◽

Vol 7 (30) ◽

pp. 17947-17953 ◽

Cited By ~ 5

Author(s):

Fong-Yi Cao ◽

Po-Kai Huang ◽

Yen-Chen Su ◽

Wen-Chia Huang ◽

Shao-Ling Chang ◽

...

Keyword(s):

Solar Cells ◽

Organic Solar Cells ◽

High Performance ◽

High Efficiency ◽

Ternary Blend

This work clearly demonstrates the importance of chemical planarization in designing high-performance nonfullerene acceptors and the ternary-blend device using PBDB-T:DTFT9-FIC:PC71BM achieved a high PCE of 11.82%.

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High‐performance semi‐transparent organic solar cells enabled by improved charge transport and optical engineering of ternary blend active layer

Solar RRL ◽

10.1002/solr.202100785 ◽

2021 ◽

Author(s):

Yuniu Zhang ◽

Dou Luo ◽

Chengwei Shan ◽

Qian Liu ◽

Xiaoyu Gu ◽

...

Keyword(s):

Solar Cells ◽

Charge Transport ◽

Active Layer ◽

Organic Solar Cells ◽

High Performance ◽

Ternary Blend ◽

Optical Engineering

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High-Performance and Low-Energy Loss Organic Solar Cells with Non-fused Ring Acceptor by Alkyl Chain Engineering

Chemical Engineering Journal ◽

10.1016/j.cej.2021.129768 ◽

2021 ◽

pp. 129768

Author(s):

Dou Luo ◽

Xue Lai ◽

Nan Zheng ◽

Chenghao Duan ◽

Zhaojin Wang ◽

...

Keyword(s):

Solar Cells ◽

Energy Loss ◽

Organic Solar Cells ◽

High Performance ◽

Alkyl Chain ◽

Low Energy ◽

Fused Ring

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A Facile Synthesized Polymer Featuring B‐N Covalent Bond and Small Singlet‐Triplet Gap for High‐Performance Organic Solar Cells

Angewandte Chemie International Edition ◽

10.1002/anie.202016265 ◽

2021 ◽

Vol 60 (16) ◽

pp. 8813-8817

Author(s):

Shuting Pang ◽

Zhiqiang Wang ◽

Xiyue Yuan ◽

Langheng Pan ◽

Wanyuan Deng ◽

...

Keyword(s):

Solar Cells ◽

Organic Solar Cells ◽

High Performance ◽

Covalent Bond

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High performance tandem organic solar cells via a strongly infrared-absorbing narrow bandgap acceptor

Nature Communications ◽

10.1038/s41467-020-20431-6 ◽

2021 ◽

Vol 12 (1) ◽

Author(s):

Zhenrong Jia ◽

Shucheng Qin ◽

Lei Meng ◽

Qing Ma ◽

Indunil Angunawela ◽

...

Keyword(s):

Solar Cells ◽

Power Conversion Efficiency ◽

Conversion Efficiency ◽

Organic Solar Cells ◽

High Performance ◽

Short Circuit ◽

Power Conversion ◽

High Power Conversion Efficiency ◽

Device Structure ◽

Narrow Bandgap

AbstractTandem organic solar cells are based on the device structure monolithically connecting two solar cells to broaden overall absorption spectrum and utilize the photon energy more efficiently. Herein, we demonstrate a simple strategy of inserting a double bond between the central core and end groups of the small molecule acceptor Y6 to extend its conjugation length and absorption range. As a result, a new narrow bandgap acceptor BTPV-4F was synthesized with an optical bandgap of 1.21 eV. The single-junction devices based on BTPV-4F as acceptor achieved a power conversion efficiency of over 13.4% with a high short-circuit current density of 28.9 mA cm−2. With adopting BTPV-4F as the rear cell acceptor material, the resulting tandem devices reached a high power conversion efficiency of over 16.4% with good photostability. The results indicate that BTPV-4F is an efficient infrared-absorbing narrow bandgap acceptor and has great potential to be applied into tandem organic solar cells.

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