Green Solvent-Processed, High-Performance Organic Solar Cells Achieved by Outer Side-Chain Selection of Selenophene-Incorporated Y-Series Acceptors

2021 ◽  
Author(s):  
Changkyun Kim ◽  
Shuhao Chen ◽  
Jin Su Park ◽  
Geon-U Kim ◽  
Hyunbum Kang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Power Conversion ◽  
Side Chain ◽  
Outer Side ◽  
Green Solvent ◽  
Conversion Efficiencies ◽  
Selection Of

While the power conversion efficiencies (PCEs) of organic solar cells (OSCs) have been dramatically increased through the development of small molecular acceptors (SMAs), achieving eco-friendly solution processability of OSCs is...

Recent advances, challenges and prospects in ternary organic solar cells

Nanoscale ◽  
2021 ◽  
Author(s):  
Congcong Zhao ◽  
Jiuxing Wang ◽  
Xuanyi Zhao ◽  
Zhonglin Du ◽  
Renqiang Yang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Power Conversion ◽  
The Past ◽  
Recent Advances ◽  
Conversion Efficiencies

The past decade has seen a tremendous development of organic solar cells (OSCs). To date, the high-performance OSCs have boosted the power conversion efficiencies (PCEs) over 17%, showing bright prospects...

scholarly journals High-Performance Ternary Organic Solar Cells Enabled by Combining Fullerene and Nonfullerene Electron Acceptors

2019 ◽  
Vol 01 (01) ◽  
pp. 030-037 ◽  
Author(s):  
Jianyun Zhang ◽  
Wenrui Liu ◽  
Shengjie Xu ◽  
Xiaozhang Zhu
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Power Conversion ◽  
Wide Bandgap ◽  
The Third ◽  
Bimolecular Recombination ◽  
Conversion Efficiencies ◽  
Wide Bandgap Polymer ◽  
Nonfullerene Acceptor

Recently, by elaborately designing nonfullerene acceptors and selecting suitable polymer donors great progresses have been made towards binary organic solar cells (OSCs) with power conversion efficiencies (PCEs) over 15%. Ternary organic photovoltaics by introducing a third component into the host binary system is recognized to be highly effective to elevate the performance through extending the light absorption, manipulating the recombination behavior of the carriers, and improving the morphology of the active layer. In this work, we synthesized a new electron-acceptor ZITI-4F matching it with the wide-bandgap polymer donor PBDB-T The PBDB-T:ZITI-4F-based OSC showed a high PCE of 12.33%. After introducing 40% of PC71BM as the third component, the ternary device achieved an improved PCE of 13.40% with simultaneously improved photovoltaic parameters. The higher performance of the ternary device can be attributed to the improved and more balanced charge mobility, reduced bimolecular recombination, and more favorable morphology. These results indicate that the cooperation of a fullerene-based acceptor and a nonfullerene acceptor to fabricate ternary OSCs is an effective approach to optimizing morphology and therefore to increase the performance of OSCs.

Synergistic effect of side-chain and backbone engineering in thieno[2,3-f]benzofuran-based conjugated polymers for high performance non-fullerene organic solar cells

2019 ◽  
Vol 7 (3) ◽  
pp. 958-964 ◽  
Author(s):  
Keke Dou ◽  
Xunchang Wang ◽  
Zurong Du ◽  
Huanxiang Jiang ◽  
Feng Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Synergistic Effect ◽  
Conjugated Polymers ◽  
Power Conversion Efficiency ◽  
Organic Solar Cells ◽  
High Performance ◽  
Power Conversion ◽  
Photovoltaic Performance ◽  
Side Chain ◽  
Alkyl Side Chains

A series of copolymers containing thieno[2,3-f]benzofuran unit with different alkyl side chains are synthesized. The best photovoltaic performance with power conversion efficiency over 11% have been realized.

High-performance ternary organic solar cells with photoresponses beyond 1000 nm

2018 ◽  
Vol 6 (47) ◽  
pp. 24210-24215 ◽  
Author(s):  
Peiyao Xue ◽  
Yiqun Xiao ◽  
Tengfei Li ◽  
Shuixing Dai ◽  
Boyu Jia ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Power Conversion ◽  
Low Bandgap ◽  
Conversion Efficiencies

Panchromatic ternary organic solar cells with photoresponses beyond 1000 nm and power conversion efficiencies as high as 12.1% were fabricated using low-bandgap polymer PTB7-Th as a donor and ultra low-bandgap F8IC and mid-bandgap IDT-2BR as nonfullerene acceptors.

High-performance wide-bandgap copolymers with dithieno[3,2-b:2′,3′-d]pyridin-5(4H)-one units

2019 ◽  
Vol 3 (3) ◽  
pp. 399-402 ◽  
Author(s):  
Yaxin Gao ◽  
Dan Li ◽  
Zuo Xiao ◽  
Xin Qian ◽  
Junliang Yang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Power Conversion ◽  
Wide Bandgap ◽  
Open Circuit ◽  
Conversion Efficiencies ◽  
Open Circuit Voltages

Dithieno[3,2-b:2′,3′-d]pyridin-5(4H)-one-based wide-bandgap copolymers gave high open-circuit voltages and decent power conversion efficiencies in nonfullerene organic solar cells.

Aniline-based Hole Transporting Materials for High-Performance Organic Solar Cells with Enhanced Ambient Stability

2021 ◽  
Author(s):  
Tan Ngoc-Lan Phan ◽  
Jinseck Kim ◽  
Geon-U Kim ◽  
Seungjin Lee ◽  
Bumjoon Kim
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Organic Solar Cells ◽  
High Performance ◽  
Power Conversion ◽  
Hole Transport ◽  
Interfacial Layers ◽  
Hole Transporting ◽  
Hole Transporting Materials ◽  
Selection Of

The selection of interfacial layers in organic solar cells (OSCs) is crucial for enhancing their power conversion efficiency (PCE) and operational stability. PEDOT:PSS is the most widely used hole transport...

scholarly journals Elucidating Charge Generation in Green-Solvent Processed Organic Solar Cells

Molecules ◽  
2021 ◽  
Vol 26 (24) ◽  
pp. 7439
Author(s):  
Safa Shoaee ◽  
Anna Laura Sanna ◽  
Giuseppe Sforazzini
Keyword(s):  
Solar Cells ◽  
Organic Semiconductors ◽  
Organic Solar Cells ◽  
Large Scale ◽  
Power Conversion ◽  
Green Solvent ◽  
Charge Generation ◽  
High Performing ◽  
Large Scale Manufacture ◽  
Conversion Efficiencies

Organic solar cells have the potential to become the cheapest form of electricity. Rapid increase in the power conversion efficiency of organic solar cells (OSCs) has been achieved with the development of non-fullerene small-molecule acceptors. Next generation photovoltaics based upon environmentally benign “green solvent” processing of organic semiconductors promise a step-change in the adaptability and versatility of solar technologies and promote sustainable development. However, high-performing OSCs are still processed by halogenated (non-environmentally friendly) solvents, so hindering their large-scale manufacture. In this perspective, we discuss the recent progress in developing highly efficient OSCs processed from eco-compatible solvents, and highlight research challenges that should be addressed for the future development of high power conversion efficiencies devices.

Fluorinated oligothiophene donors for high-performance nonfullerene small-molecule organic solar cells

2020 ◽  
Vol 4 (6) ◽  
pp. 2680-2685 ◽  
Author(s):  
Tongle Xu ◽  
Yuying Chang ◽  
Cenqi Yan ◽  
Qianguang Yang ◽  
Zhipeng Kan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Performance ◽  
Power Conversion ◽  
Electron Donors ◽  
Conversion Efficiencies

Two oligothiophenes were synthesized and used as electron donors in organic solar cells. The devices with a fluorinated donor (2FDC5T) achieved power conversion efficiencies of up to ca. 9.02% (vs. ca. 7.03% for the non-halogenated donor DC5T).

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

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.

Nonfullerene acceptors for P3HT-based organic solar cells

2021 ◽  
Author(s):  
Shreyam Chatterjee ◽  
Seihou JINNAI ◽  
Yutaka Ie
Keyword(s):  
Solar Cells ◽  
High Power ◽  
Organic Solar Cells ◽  
Power Conversion ◽  
Conversion Efficiencies

Progressive advancement of remarkably high power conversion efficiencies (PCEs) of organic solar cells (OSCs) largely depends on the development of norfullerene acceptors (NFAs), revealing stupendous ability of OSCs to shift...

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