scholarly journals Molecular design of organic small molecules based on diindole–diimide with fused aromatic heterocycles as donors for organic solar cells

RSC Advances ◽  
2017 ◽  
Vol 7 (63) ◽  
pp. 39899-39905 ◽  
Author(s):  
Ruifa Jin ◽  
Ahmad Irfan
Keyword(s):  
Solar Cells ◽  
Charge Transport ◽  
Small Molecules ◽  
Organic Solar Cells ◽  
Molecular Design ◽  
Aromatic Heterocycles ◽  
End Groups

A series of novel diindole–diimide based molecules with different aromatic end groups have been designed as charge transport and donor materials for organic solar cells (OSCs).

Understanding effects of two different acceptors in one small molecule for solution processable organic solar cells

RSC Advances ◽  
2015 ◽  
Vol 5 (76) ◽  
pp. 61703-61709
Author(s):  
Yifan Zhao ◽  
Liu Yuan ◽  
Jianqi Zhang ◽  
Lingyun Zhu ◽  
Kun Lu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Molecular Design ◽  
Deep Understanding ◽  
Type A ◽  
Organic Photovoltaic ◽  
Solution Processable

By comparing two-acceptor type (A1–A2–D–A2–A1) with single-acceptor type organic photovoltaic small molecules, a deep understanding of two-acceptors was obtained, which could help potential strategies of molecular design.

Rational molecular design towards NIR absorption: efficient diketopyrrolopyrrole derivatives for organic solar cells and photothermal therapy

2019 ◽  
Vol 7 (42) ◽  
pp. 13020-13031 ◽  
Author(s):  
Yuvraj Patil ◽  
Rajneesh Misra
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Organic Solar Cells ◽  
Photothermal Therapy ◽  
Molecular Design ◽  
Present Review ◽  
Nir Absorption ◽  
Rational Molecular Design

The present review focus on the progress and development of NIR absorbing small molecules based on diketopyrrolopyrrole for organic solar cells and photothermal therapy.

scholarly journals Development of Benzodithiophene-Based A-D-A Small Molecules with Different Acceptor End Groups for Efficient Organic Solar Cells

2019 ◽  
Vol 35 (1) ◽  
pp. 76-83 ◽  
Author(s):  
Guoxiao JIA ◽  
◽  
Shaoqing ZHANG ◽  
Liyan YANG ◽  
Chang HE ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Organic Solar Cells ◽  
End Groups

Cyclohexyl-substituted Non-fullerene Small-molecule Acceptors for Organic Solar Cells

2021 ◽  
Author(s):  
Seunggyun Hong ◽  
Chang Eun Song ◽  
Du Hyeon Ryu ◽  
Sang Kyu Lee ◽  
Won Suk Shin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
End Groups ◽  
Molecular Backbone

In this paper, two cyclohexyl-substituted non-fullerene small molecules, T2-Cy6MRH and T2-Cy6PRH, are designed to have the same molecular backbone of a bithiophene (T2) core and rhodanine (RH) end groups. T2-Cy6MRH...

scholarly journals Solution processable diketopyrrolopyrrole (DPP) cored small molecules with BODIPY end groups as novel donors for organic solar cells

2014 ◽  
Vol 10 ◽  
pp. 2683-2695 ◽  
Author(s):  
Diego Cortizo-Lacalle ◽  
Calvyn T Howells ◽  
Upendra K Pandey ◽  
Joseph Cameron ◽  
Neil J Findlay ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Organic Solar Cells ◽  
Photovoltaic Performance ◽  
Photovoltaic Properties ◽  
Tddft Calculations ◽  
End Groups ◽  
Solution Processable ◽  
Dft And Tddft Calculations ◽  
Molar Extinction Coefficients

Two novel triads based on a diketopyrrolopyrrole (DPP) central core and two 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) units attached by thiophene rings have been synthesised having high molar extinction coefficients. These triads were characterised and used as donor materials in small molecule, solution processable organic solar cells. Both triads were blended with PC71BM as an acceptor in different ratios by wt % and their photovoltaic properties were studied. For both the triads a modest photovoltaic performance was observed, having an efficiency of 0.65%. Moreover, in order to understand the ground and excited state properties and vertical absorption profile of DPP and BODIPY units within the triads, theoretical DFT and TDDFT calculations were performed.

The Effect of Donor Molecular Structure on Power Conversion Efficiency of Small-Molecule-Based Organic Solar Cells

2019 ◽  
Vol 16 (3) ◽  
pp. 236-243 ◽  
Author(s):  
Hui Zhang ◽  
Yibing Ma ◽  
Youyi Sun ◽  
Jialei Liu ◽  
Yaqing Liu ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Molecular Design ◽  
Power Conversion ◽  
The Relationship

In this review, small-molecule donors for application in organic solar cells reported in the last three years are highlighted. Especially, the effect of donor molecular structure on power conversion efficiency of organic solar cells is reported in detail. Furthermore, the mechanism is proposed and discussed for explaining the relationship between structure and power conversion efficiency. These results and discussions draw some rules for rational donor molecular design, which is very important for further improving the power conversion efficiency of organic solar cells based on the small-molecule donor.

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

A recent overview on the porphyrin-based π-extended small molecules as donors and acceptors for high-performance organic solar cells

2021 ◽  
Author(s):  
Venkatesh Piradi ◽  
Feng Yan ◽  
Xunjin Zhu ◽  
Wai-Yeung Raymond Wong
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Small Molecules ◽  
Organic Solar Cells ◽  
High Performance ◽  
Cost Effective ◽  
Effective Alternative ◽  
The Past ◽  
Cost Effective Alternative ◽  
Silicon Based

Organic solar cells (OSCs) have been considered as a promising cost-effective alternative to silicon-based solar cell counterparts due to their lightweight, mechanical flexibility, and easy fabrication features. Over the past...

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.

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