Benzothiadiazole building units in solution-processable small molecules for organic photovoltaics

2016 ◽  
Vol 4 (41) ◽  
pp. 15771-15787 ◽  
Author(s):  
Jia Du ◽  
Michael C. Biewer ◽  
Mihaela C. Stefan
Keyword(s):  
Small Molecules ◽  
Electron Acceptor ◽  
Organic Photovoltaics ◽  
Photovoltaic Performance ◽  
Optoelectronic Properties ◽  
Recent Advances ◽  
Solution Processable ◽  
Molecular Semiconductors ◽  
The Relationship

This review attempts to summarize recent advances with respect to solution-processable molecular semiconductors having 2,1,3-benzothiadiazole or its fluorine substituted derivatives as electron-acceptor units published in the last few years. The relationship between the structure, optoelectronic properties, and photovoltaic performance of these molecular semiconductors is discussed.

A high-performance non-fullerene electron acceptor with bisalkylthiothiophene π-bridges for organic photovoltaics

2019 ◽  
Vol 7 (46) ◽  
pp. 14499-14503
Author(s):  
Zhaolong Wang ◽  
Kunxiang Huang ◽  
Xianjie Chen ◽  
Yating Xu ◽  
Zheng Xu ◽  
...  
Keyword(s):  
Electron Acceptor ◽  
Organic Photovoltaics ◽  
High Performance ◽  
Photovoltaic Performance

A non-fullerene acceptor IDT2ST-4F bearing a bisalkylthiothiophene unit as the π-bridge was designed and synthesized, and its photovoltaic performance was investigated.

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.

scholarly journals Recent advances in high-performance organic solar cells enabled by acceptor–donor–acceptor–donor–acceptor (A–DA′D–A) type acceptors

2020 ◽  
Vol 4 (12) ◽  
pp. 3487-3504 ◽  
Author(s):  
Jiajun Zhao ◽  
Chao Yao ◽  
Muhammad Umair Ali ◽  
Jingsheng Miao ◽  
Hong Meng
Keyword(s):  
Molecular Structure ◽  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Photovoltaic Performance ◽  
Optoelectronic Properties ◽  
Recent Advances ◽  
Donor Acceptor

In this review, we focus on the recent advances in organic solar cells enabled by A–DA′D–A type acceptors and summarize the correlation between molecular structure, molecular packings, optoelectronic properties, and photovoltaic performance.

Indan-1,3-dione electron-acceptor small molecules for solution-processable solar cells: a structure–property correlation

2013 ◽  
Vol 49 (56) ◽  
pp. 6307 ◽  
Author(s):  
Kevin N. Winzenberg ◽  
Peter Kemppinen ◽  
Fiona H. Scholes ◽  
Gavin E. Collis ◽  
Ying Shu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Electron Acceptor ◽  
Structure Property ◽  
Property Correlation ◽  
Solution Processable

scholarly journals Solution-processing of semiconducting organic small molecules: What we have learnt from 5,11-bis(triethyl silylethynyl) anthradithiophene

2021 ◽  
Author(s):  
Natalie Stingelin ◽  
Liyang Yu ◽  
Giuseppe Portale
Keyword(s):  
Small Molecules ◽  
Optoelectronic Properties ◽  
Solution Processing ◽  
Polymeric Systems ◽  
Molecular Semiconductors

Organic small-molecular semiconductors have attracted increasing interest over the last decades because of their versatile, tunable optoelectronic properties and, e.g., the ease they can be purified compared to polymeric systems....

Ultralow bandgap molecular semiconductors for ambient-stable and solution-processable ambipolar organic field-effect transistors and inverters

2017 ◽  
Vol 5 (9) ◽  
pp. 2368-2379 ◽  
Author(s):  
Resul Ozdemir ◽  
Donghee Choi ◽  
Mehmet Ozdemir ◽  
Guhyun Kwon ◽  
Hyekyoung Kim ◽  
...  
Keyword(s):  
Small Molecules ◽  
Field Effect ◽  
Field Effect Transistors ◽  
High Gain ◽  
Organic Field Effect Transistors ◽  
Solution Processable ◽  
Molecular Semiconductors

New ultralow bandgap semiconductor small molecules were designed and synthesized for ambient-stable and solution-processable ambipolar organic field-effect transistors and high-gain inverters.

Aromatic end-capped acceptor effects on molecular stacking and the photovoltaic performance of solution-processable small molecules

2018 ◽  
Vol 6 (44) ◽  
pp. 22077-22085 ◽  
Author(s):  
Dan Deng ◽  
Yang Yang ◽  
Wenjun Zou ◽  
Yajie Zhang ◽  
Zhen Wang ◽  
...  
Keyword(s):  
Small Molecules ◽  
Photovoltaic Performance ◽  
Molecular Properties ◽  
Solution Processable ◽  
Molecular Stacking

Four small molecules were designed and synthesized with various acceptors, and their acceptor effects on molecular properties and device performances were investigated. The molecules based on medium strong acceptors obtained excellent efficiencies (ranged from 8.5% to 10.1%).

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.

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