Non-conjugated electrolytes as thickness-insensitive interfacial layers for high-performance organic solar cells

2021 ◽  
Author(s):  
Yufu Yu ◽  
Wuxi Tao ◽  
Linqiao Wang ◽  
Yang-Dan Tao ◽  
Zeyan Peng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Low Temperature ◽  
Organic Solar Cells ◽  
High Performance ◽  
Low Cost ◽  
Interfacial Layers

Non-conjugated electrolytes, PMDETA-DBO and PEDETA-DBO, are developed through the quaternization of diethylenetriamine derivatives with 1,8-dibromooctane, which can interestingly be deployed as low-cost, thickness-insensitive and low-temperature processable electron transporting layers (ETLs)...

scholarly journals Molecular design revitalizes the low-cost PTV-polymer for highly efficient organic solar cells

2021 ◽  
Author(s):  
Junzhen Ren ◽  
Pengqing Bi ◽  
Jianqi Zhang ◽  
Jiao Liu ◽  
Jingwen Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Molecular Design ◽  
Raw Materials ◽  
Low Cost ◽  
Stable Conformation ◽  
Chemical Structures ◽  
Aggregation Effect ◽  
Industrialization Process

Abstract Developing photovoltaic materials with simple chemical structures and easy synthesis still remains a major challenge in the industrialization process of organic solar cells (OSCs). Herein, an ester substituted poly(thiophene vinylene) derivative, PTVT-T, was designed and synthesized in very few steps by adopting commercially available raw materials. The ester groups on the thiophene units enable PTVT-T to have a planar and stable conformation. Moreover, PTVT-T presents a wide absorption band and strong aggregation effect in solution, which are the key characteristics needed to realize high performance in non-fullerene-acceptor (NFA)-based OSCs. We then prepared OSCs by blending PTVT-T with three representative fullerene- and NF-based acceptors, PC71BM, IT-4F and BTP-eC9. It was found that PTVT-T can work well with all the acceptors, showing great potential to match new emerging NFAs. Particularly, a remarkable power conversion efficiency of 16.20% is achieved in a PTVT-T:BTP-eC9-based device, which is the highest value among the counterparts based on PTV derivatives. This work demonstrates that PTVT-T shows great potential for the future commercialization of OSCs.

Low temperature aqueous solution-processed Li doped ZnO buffer layers for high performance inverted organic solar cells

2016 ◽  
Vol 4 (25) ◽  
pp. 6169-6175 ◽  
Author(s):  
Zhenhua Lin ◽  
Jingjing Chang ◽  
Chunfu Zhang ◽  
Jincheng Zhang ◽  
Jishan Wu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Solar Cells ◽  
Low Temperature ◽  
Buffer Layer ◽  
Organic Solar Cells ◽  
High Performance ◽  
Photovoltaic Performance ◽  
Buffer Layers ◽  
Solution Processed ◽  
Doped Zno

An enhanced photovoltaic performance is achieved by employing a lithium doped ZnO layer as the electron buffer layer for organic solar cells.

scholarly journals Cadmium-doped flexible perovskite solar cells with a low-cost and low-temperature-processed CdS electron transport layer

RSC Advances ◽  
2017 ◽  
Vol 7 (32) ◽  
pp. 19457-19463 ◽  
Author(s):  
Guoqing Tong ◽  
Zihang Song ◽  
Chengdong Li ◽  
Yaolong Zhao ◽  
Linwei Yu ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Solar Cells ◽  
Low Temperature ◽  
High Performance ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Transfer Layer ◽  
Hybrid Perovskite

Hybrid perovskite solar cells (PSCs) are promising candidates in exploring high performance flexible photovoltaics, where a low-temperature-processed metal oxide electron transfer layer (ETL) is highly preferable.

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...

High-Performance All-small-molecule Organic Solar Cells without Interlayers

2021 ◽  
Author(s):  
Jie Min ◽  
Rui Sun ◽  
Yao Wu ◽  
Jie Guo ◽  
Yuheng Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Active Layer ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Performance ◽  
Solvent Treatment ◽  
Interfacial Layers

In this work, we report a two-step solvent treatment (TSST) strategy to fabricate high-performance all-small molecule solar cells (all-SMSCs) without interfacial layers (IFLs), which only consist of an active layer...

Green solvent-processed organic solar cells based on a low cost polymer donor and a small molecule acceptor

2020 ◽  
Vol 8 (23) ◽  
pp. 7718-7724
Author(s):  
He Huang ◽  
Xiaojun Li ◽  
Chenkai Sun ◽  
Indunil Angunawela ◽  
Beibei Qiu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Performance ◽  
Low Cost ◽  
Green Solvent

High-performance OSCs were fabricated based on polymer PTQ10 as donor and HO-IDIC-2F as acceptor, using non-halogen tetrahydrofuran as processing solvent and the PCE of the as-cast OSCs reached 12.20% which is competitive with regular chloroform.

scholarly journals Natural Dyes and Their Derivatives Integrated into Organic Solar Cells

Materials ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 2579 ◽  
Author(s):  
Varun Vohra
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Light Harvesting ◽  
Low Cost ◽  
Short Review ◽  
Natural Dyes ◽  
Localized Surface Plasmon ◽  
Resonance Effects ◽  
Silver Nanoprisms

Natural photosynthetic systems contain several dyes such as carotenoids or chlorophylls which are adequately arranged to produce efficient photoinduced charge separation and electron transfer. Several research groups have attempted integrating these natural dyes and photosynthetic systems into functional organic solar cells (OSCs) producing power conversion efficiencies (PCEs) up to 0.99%. The studies presented in this short review emphasize that functionalization of natural dyes can considerably improve their PCEs. For instance, chlorophyll derivatives can yield PCEs up to 2.1%, and copolymers produced with isoindigo as an electron-deficient unit generate high PCEs up to 8%, respectively, when combined with fullerene C70 based electron acceptors in the OSC active layers. An alternative approach for natural dye integration into OSC architectures is to place these light-harvesting antennas at the interface between the active layer and the charge collection layers in these low-cost photovoltaic devices. This strategy produces large PCE increases up to 35% with respect to OSCs prepared without the interlayer. When light-harvesting systems are combined with silver nanoprisms as interlayers, additional localized surface plasmon resonance effects result in high-performance OSCs that integrate natural photosynthetic systems and demonstrate a PCE over the milestone value of 10%.

scholarly journals Low Temperature Aqueous Solution-Processed ZnO and Polyethylenimine Ethoxylated Cathode Buffer Bilayer for High Performance Flexible Inverted Organic Solar Cells

Energies ◽  
2017 ◽  
Vol 10 (4) ◽  
pp. 494 ◽  
Author(s):  
Hailong You ◽  
Junchi Zhang ◽  
Zeyulin Zhang ◽  
Chunfu Zhang ◽  
Zhenhua Lin ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Solar Cells ◽  
Low Temperature ◽  
Organic Solar Cells ◽  
High Performance ◽  
Solution Processed
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