High efficiency organic solar cells with spray coated active layers comprised of a low band gap conjugated polymer

2012 ◽  
Vol 100 (8) ◽  
pp. 083301 ◽  
Author(s):  
Wanyi Nie ◽  
Robert C. Coffin ◽  
Jiwen Liu ◽  
Yuan Li ◽  
Eric D. Peterson ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Conjugated Polymer ◽  
High Efficiency ◽  
Low Band Gap ◽  
Active Layers

Fluoro-benzoselenadiazole-based low band gap polymers for high efficiency organic solar cells

2014 ◽  
Vol 5 (2) ◽  
pp. 330-334 ◽  
Author(s):  
Yongxi Li ◽  
Zhe Pan ◽  
Lei Miao ◽  
Ying Xing ◽  
Chao Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Organic Solar Cells ◽  
High Efficiency ◽  
Low Band Gap ◽  
Low Band Gap Polymers

Isoindigo-based low bandgap conjugated polymer for o-xylene processed efficient polymer solar cells with thick active layers

2015 ◽  
Vol 3 (39) ◽  
pp. 19928-19935 ◽  
Author(s):  
Xin Dong ◽  
Yunfeng Deng ◽  
Hongkun Tian ◽  
Zhiyuan Xie ◽  
Yanhou Geng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Conjugated Polymer ◽  
Polymer Solar Cells ◽  
Low Band Gap ◽  
Low Bandgap ◽  
Active Layers

A low band gap conjugated polymer P(1FIID-BT) was synthesized for making thick polymer solar cells with a PCE of 7.46%.

Vertically Optimized Phase Separation with Improved Exciton Diffusion Enables High-Efficiency Organic Solar Cells with Thick Active Layers

2021 ◽  
Author(s):  
Yanming Sun ◽  
Yunhao Cai ◽  
Qian Li ◽  
Guanyu Lu ◽  
Hwa Sook Ryu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Phase Separation ◽  
Active Layer ◽  
Organic Solar Cells ◽  
High Efficiency ◽  
Diffusion Length ◽  
Active Layer Thickness ◽  
Exciton Diffusion ◽  
Exciton Diffusion Length ◽  
Active Layers

Abstract The development of high-performance organic solar cells (OSCs) with thick active layers is of crucial importance for the roll-to-roll printing of large-area solar panels. Unfortunately, increasing the active layer thickness usually results in a significant reduction in efficiency. Herein, we fabricated efficient thick-film OSCs with an active layer consisting of one polymer donor and two non-fullerene acceptors. The two acceptors were found to possess enlarged exciton diffusion length in the mixed phase, which is beneficial to exciton generation and dissociation. Additionally, layer by layer approach was employed to optimize the vertical phase separation. Benefiting from the synergetic effects of enlarged exciton diffusion length and graded vertical phase separation, a record high efficiency of 17.31% (certified value of 16.9%) was obtained for the 300 nm-thick OSC, with an unprecedented short-circuit current density of 28.36 mA cm−2, and a high fill factor of 73.0%. Moreover, the device with an active layer thickness of 500 nm also shows a record efficiency of 15.21%. This work provides new insights into the fabrication of high-efficiency OSCs with thick active layers.

scholarly journals Design and synthesis of low band gap non-fullerene acceptors for organic solar cells with impressively high Jsc over 21 mA cm_2

2017 ◽  
Vol 60 (9) ◽  
pp. 819-828 ◽  
Author(s):  
Huan-Huan Gao ◽  
Yanna Sun ◽  
Xiangjian Wan ◽  
Bin Kan ◽  
Xin Ke ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Low Band Gap ◽  
Design And Synthesis

scholarly journals All-small-molecule organic solar cells with over 14% efficiency by optimizing hierarchical morphologies

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Ruimin Zhou ◽  
Zhaoyan Jiang ◽  
Chen Yang ◽  
Jianwei Yu ◽  
Jirui Feng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Performance ◽  
High Efficiency ◽  
Bulk Heterojunction ◽  
Photovoltaic Performance ◽  
Photovoltaic System ◽  
Active Layers ◽  
Donor Acceptor

AbstractThe high efficiency all-small-molecule organic solar cells (OSCs) normally require optimized morphology in their bulk heterojunction active layers. Herein, a small-molecule donor is designed and synthesized, and single-crystal structural analyses reveal its explicit molecular planarity and compact intermolecular packing. A promising narrow bandgap small-molecule with absorption edge of more than 930 nm along with our home-designed small molecule is selected as electron acceptors. To the best of our knowledge, the binary all-small-molecule OSCs achieve the highest efficiency of 14.34% by optimizing their hierarchical morphologies, in which the donor or acceptor rich domains with size up to ca. 70 nm, and the donor crystals of tens of nanometers, together with the donor-acceptor blending, are proved coexisting in the hierarchical large domain. All-small-molecule photovoltaic system shows its promising for high performance OSCs, and our study is likely to lead to insights in relations between bulk heterojunction structure and photovoltaic performance.

Design of low band gap small molecules with alkyldicyanovinyl acceptor and different donor groups for efficient bulk heterojunction organic solar cells

2015 ◽  
Author(s):  
Yuriy N. Luponosov ◽  
Jie Min ◽  
Alexander N. Solodukhin ◽  
Sergei N. Chvalun ◽  
Tayebeh Ameri ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Low Band Gap

Low-Band-Gap Platinum Acetylide Polymers as Active Materials for Organic Solar Cells

2009 ◽  
Vol 1 (1) ◽  
pp. 150-161 ◽  
Author(s):  
Jianguo Mei ◽  
Katsu Ogawa ◽  
Young-Gi Kim ◽  
Nathan C. Heston ◽  
Daniel J. Arenas ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Active Materials ◽  
Low Band Gap

Low Band Gap Donor−Acceptor Conjugated Polymers toward Organic Solar Cells Applications

2007 ◽  
Vol 40 (1) ◽  
pp. 65-72 ◽  
Author(s):  
Kristof Colladet ◽  
Sofie Fourier ◽  
Thomas J. Cleij ◽  
Laurence Lutsen ◽  
Jan Gelan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conjugated Polymers ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Low Band Gap ◽  
Donor Acceptor
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