Synthesis, characterization and photovoltaic properties of benzo[1,2-b:4,5-b′]dithiophene-bridged molecules

RSC Advances ◽  
2014 ◽  
Vol 4 (108) ◽  
pp. 63260-63267 ◽  
Author(s):  
Xinli Liu ◽  
Shusheng Li ◽  
Jinhua Li ◽  
Jian Wang ◽  
Zhan'ao Tan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Organic Solar Cells ◽  
Photovoltaic Properties ◽  
End Capping

Four benzo[1,2-b:4,5-b′]dithiophene (BDT) centred small molecules with different acceptor and end-capping groups were synthesized as the donor materials for organic solar cells.

Effects of end-capped acceptors subject to subtle structural changes on solution-processable small molecules for organic solar cells

2015 ◽  
Vol 17 (14) ◽  
pp. 8894-8900 ◽  
Author(s):  
Dan Deng ◽  
Yajie Zhang ◽  
Lingyun Zhu ◽  
Jianqi Zhang ◽  
Kun Lu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Organic Solar Cells ◽  
Structural Changes ◽  
Photovoltaic Properties ◽  
Solution Processable ◽  
The Relationship

Three subtle structural changed end-capped acceptors with increased electron withdrawing ability were synthesized and introduced into a planar conjugated backbone. The relationship between molecules bearing the three end-capped acceptors and their photovoltaic properties was studied.

An effective heteroatom-substituted strategy on photovoltaic properties of D(A-Ar)2 small molecules for efficient organic solar cells

2019 ◽  
Vol 170 ◽  
pp. 107595 ◽  
Author(s):  
Min Li ◽  
Zuojia Li ◽  
Zhen Yang ◽  
Zuoji Liu ◽  
Kai Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Organic Solar Cells ◽  
Photovoltaic Properties

Efficient chemical structure and device engineering for achieving difluorinated 2,2′-bithiophene-based small molecular organic solar cells with 9.0% efficiency

2018 ◽  
Vol 6 (26) ◽  
pp. 12493-12505 ◽  
Author(s):  
Min Li ◽  
Zhongbin Qiu ◽  
Guangjun Zhang ◽  
Yu Liu ◽  
Lin Xiong ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Electron Acceptor ◽  
Organic Solar Cells ◽  
Chemical Structure ◽  
Narrow Band ◽  
Single Layer ◽  
End Capping ◽  
Optimized Conditions ◽  
Very High

Three novel narrow band gap small molecules (SMs) with D(A–Ar)2 molecular frameworks, based on fluorinated 2,2′-bithiophene (FBT) as an electron-donating (D) central core coupled with different electron-acceptor (A) bridge units, and 2-octylthiophene (Ar) units as end-capping units, were designed and synthesized for application as donor materials in solution-processed SM-OSCs. Under optimized conditions, a high PCE of 9.00% with a very high Jsc of 16.14 mA cm−2 and a FF of 73.52% for FBT(TDPP-T)2/PC71BM is obtained in single layer OSCs, which is among the highest reported for D(A–Ar)2-type SM based solar cells with a PCE up to 9% so far.

scholarly journals New cyclopentadithiophene (CDT) linked porphyrin donors with different end-capping acceptors for efficient small molecule organic solar cells

2017 ◽  
Vol 5 (19) ◽  
pp. 4742-4751 ◽  
Author(s):  
Susana Arrechea ◽  
Ana Aljarilla ◽  
Pilar de la Cruz ◽  
Manish Kumar Singh ◽  
Ganesh D. Sharma ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
End Capping

Using cyclopentadithiophene as bridge in A–D–A porphyrin-based small molecules, and PC71BM as acceptor in BHJ solar cells PCE of 7.93%, is achieved after SVA.

Toward high performance indacenodithiophene-based small-molecule organic solar cells: investigation of the effect of fused aromatic bridges on the device performance

2016 ◽  
Vol 4 (6) ◽  
pp. 2252-2262 ◽  
Author(s):  
Jin-Liang Wang ◽  
Fei Xiao ◽  
Jun Yan ◽  
Kai-Kai Liu ◽  
Zheng-Feng Chang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Performance ◽  
Device Performance ◽  
Photovoltaic Properties

Here we report the synthesis of a pair of D1–A-bridge–D2-bridge–A–D1 type small molecules, which have different π-conjugated bridges and investigated the effects on their photovoltaic properties.

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.

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...

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