Indolo[3,2-b]indole-Containing Donor–Acceptor Copolymers for High-Efficiency Organic Solar Cells

2017 ◽  
Vol 29 (5) ◽  
pp. 2135-2140 ◽  
Author(s):  
Jaeyoung Hwang ◽  
Jeonghun Park ◽  
Yu Jin Kim ◽  
Yeon Hee Ha ◽  
Chan Eon Park ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Efficiency ◽  
Donor Acceptor

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.

scholarly journals Increasing donor-acceptor spacing for reduced voltage loss in organic solar cells

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jing Wang ◽  
Xudong Jiang ◽  
Hongbo Wu ◽  
Guitao Feng ◽  
Hanyu Wu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Radiative Decay ◽  
High Efficiency ◽  
Bulk Heterojunction ◽  
Perovskite Solar Cells ◽  
Research Direction ◽  
Voltage Loss ◽  
Donor Acceptor ◽  
New Research

AbstractThe high voltage losses ($${V}_{{loss}}$$ V l o s s ), originating from inevitable electron-phonon coupling in organic materials, limit the power conversion efficiency of organic solar cells to lower values than that of inorganic or perovskite solar cells. In this work, we demonstrate that this $${V}_{{loss}}$$ V l o s s can in fact be suppressed by controlling the spacing between the donor (D) and the acceptor (A) materials (DA spacing). We show that in typical organic solar cells, the DA spacing is generally too small, being the origin of the too-fast non-radiative decay of charge carriers ($${k}_{{nr}}$$ k n r ), and it can be increased by engineering the non-conjugated groups, i.e., alkyl chain spacers in single component DA systems and side chains in high-efficiency bulk-heterojunction systems. Increasing DA spacing allows us to realize significantly reduced $${k}_{{nr}}$$ k n r and improved device voltage. This points out a new research direction for breaking the performance bottleneck of organic solar cells.

Towards high-efficiency non-fullerene organic solar cells: Matching small molecule/polymer donor/acceptor

2014 ◽  
Vol 15 (10) ◽  
pp. 2270-2276 ◽  
Author(s):  
Pei Cheng ◽  
Xingang Zhao ◽  
Weiyi Zhou ◽  
Jianhui Hou ◽  
Yongfang Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Efficiency ◽  
Donor Acceptor

Constructing a donor–acceptor linear-conjugation structure for heterologous perylene diimides to greatly improve the photovoltaic performance

2019 ◽  
Vol 7 (4) ◽  
pp. 835-842 ◽  
Author(s):  
Helin Wang ◽  
Lingcheng Chen ◽  
Yi Xiao
Keyword(s):  
Solar Cells ◽  
Electron Acceptor ◽  
Organic Solar Cells ◽  
High Efficiency ◽  
Photovoltaic Performance ◽  
Linear Conjugation ◽  
Perylene Diimides ◽  
Donor Acceptor

Th-4PDI, a new donor–acceptor-type non-fullerene electron acceptor material, was designed and synthesized for high efficiency organic solar cells.

Easy Access to NO2-Containing Donor-Acceptor-Acceptor Electron Donors for High Efficiency Small-Molecule Organic Solar Cells

ChemSusChem ◽  
2016 ◽  
Vol 9 (12) ◽  
pp. 1433-1441 ◽  
Author(s):  
Hao-Chun Ting ◽  
Ya-Ting Yang ◽  
Chia-Hsun Chen ◽  
Jiun-Haw Lee ◽  
Jung-Hung Chang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Efficiency ◽  
Electron Donors ◽  
Easy Access ◽  
Donor Acceptor

Atomistic Insight Into Donor/Acceptor Interfaces in High-Efficiency Nonfullerene Organic Solar Cells

Solar RRL ◽  
2018 ◽  
Vol 2 (11) ◽  
pp. 1800190 ◽  
Author(s):  
Guangchao Han ◽  
Yuan Guo ◽  
Xiaoyi Ma ◽  
Yuanping Yi
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Efficiency ◽  
Donor Acceptor ◽  
Insight Into

scholarly journals An oxygen heterocycle-fused fluorene based non-fullerene acceptor for high efficiency organic solar cells

2020 ◽  
Vol 4 (12) ◽  
pp. 3594-3601
Author(s):  
Xin Ke ◽  
Lingxian Meng ◽  
Xiangjian Wan ◽  
Yanna Sun ◽  
Ziqi Guo ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Efficiency ◽  
Donor Acceptor

A new acceptor–donor–acceptor (A–D–A) small molecule acceptor, named FCO-2F, is designed and synthesized based on the previous acceptor F-H.

High‐Efficiency Nonfullerene Organic Solar Cells Enabled by Atomic Layer Deposited Zirconium‐Doped Zinc Oxide

Solar RRL ◽  
2020 ◽  
Vol 4 (10) ◽  
pp. 2000241
Author(s):  
Geedhika K. Poduval ◽  
Leiping Duan ◽  
Md. Anower Hossain ◽  
Borong Sang ◽  
Yu Zhang ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Solar Cells ◽  
Organic Solar Cells ◽  
High Efficiency ◽  
Atomic Layer

Triphenylamine based donor-acceptor-donor type small molecules for organic solar cells

2021 ◽  
Vol 1198 ◽  
pp. 113176
Author(s):  
Sadaf Bibi ◽  
Rasheed Ahmad Khera ◽  
Afifa Farhat ◽  
Javed Iqbal
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Organic Solar Cells ◽  
Donor Type ◽  
Donor Acceptor
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