DTBDT-TTPD: a new dithienobenzodithiophene-based small molecule for use in efficient photovoltaic devices

2014 ◽  
Vol 2 (39) ◽  
pp. 16443-16451 ◽  
Author(s):  
Ye Rim Cheon ◽  
Yu Jin Kim ◽  
Jang Yeol Back ◽  
Tae kyu An ◽  
Chan Eon Park ◽  
...  
Keyword(s):  
Band Gap ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Small Molecule ◽  
Power Conversion ◽  
Molecular Geometry ◽  
Photovoltaic Devices ◽  
Low Band Gap ◽  
Homo Level ◽  
Photovoltaic Characteristics

We designed and synthesized a dithienobenzodithiophene-based molecule with a planar molecular geometry, DTBDT-TTPD. It showed low band gap, deep HOMO level and the photovoltaic characteristics included a power conversion efficiency as high as 4.48%.

A facile method to synthesize [A′(D′AD)2]-based push–pull small molecules for organic photovoltaics

RSC Advances ◽  
2015 ◽  
Vol 5 (81) ◽  
pp. 66005-66012 ◽  
Author(s):  
Mohamed Shaker ◽  
Jong-Hoon Lee ◽  
Cuc Kim Trinh ◽  
Wonbin Kim ◽  
Kwanghee Lee ◽  
...  
Keyword(s):  
Small Molecules ◽  
Band Gap ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Organic Photovoltaics ◽  
Power Conversion ◽  
Low Band Gap ◽  
Donor Acceptor

Synthesis of promising new composition low band gap small molecules based on the push–pull (donor–acceptor) system, which displayed power conversion efficiency of up to 3.24%.

A high-performance solution-processed small molecule: alkylselenophene-substituted benzodithiophene organic solar cell

2014 ◽  
Vol 2 (25) ◽  
pp. 4937-4946 ◽  
Author(s):  
Yu Jin Kim ◽  
Jang Yeol Baek ◽  
Jong-jin Ha ◽  
Dae Sung Chung ◽  
Soon-Ki Kwon ◽  
...  
Keyword(s):  
Solar Cell ◽  
Power Conversion Efficiency ◽  
Small Molecule ◽  
Light Absorption ◽  
Organic Solar Cell ◽  
High Performance ◽  
Power Conversion ◽  
Strong Light ◽  
Homo Level ◽  
Photovoltaic Characteristics

A novel small molecule with alkylselenophene-substituted benzodithiophene unit,BDTSe-TTPD, showed strong light absorption, low HOMO level and photovoltaic characteristics with power conversion efficiency as high as 4.37%.

Synthesis and properties of low band gap polymers based on thienyl thienoindole as a new electron-rich unit for organic photovoltaics

2015 ◽  
Vol 6 (33) ◽  
pp. 6011-6020 ◽  
Author(s):  
Joo Young Shim ◽  
Jiyeon Baek ◽  
Juae Kim ◽  
Song Yi Park ◽  
Jinwoo Kim ◽  
...  
Keyword(s):  
Band Gap ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Organic Photovoltaics ◽  
Power Conversion ◽  
Low Band Gap ◽  
Low Band Gap Polymers

A series of polymers based on 6-(2-thienyl)-4H-thieno[3,2-b]indole, a new electron-rich unit for organic photovoltaics, was synthesized. The best-performing device demonstrated a power conversion efficiency of 3.35%.

Low band-gap weak donor–strong acceptor conjugated polymer for organic solar cell

RSC Advances ◽  
2015 ◽  
Vol 5 (120) ◽  
pp. 98876-98879 ◽  
Author(s):  
Zugui Shi ◽  
Ivy Wong Hoi Ka ◽  
Xizu Wang ◽  
Chellappan Vijila ◽  
Fei Wang ◽  
...  
Keyword(s):  
Solar Cell ◽  
Band Gap ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Conjugated Polymer ◽  
Organic Solar Cell ◽  
Power Conversion ◽  
Low Band Gap ◽  
Donor Acceptor

With an additional weak acceptor, the low band-gap donor–acceptor conjugated polymer displayed a remarkable power conversion efficiency of 5.36%.

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.

Effect of the π-linker on the performance of organic photovoltaic devices based on push–pull D–π–A molecules

2018 ◽  
Vol 42 (14) ◽  
pp. 11458-11464 ◽  
Author(s):  
Hong Chul Lim ◽  
Jang-Joo Kim ◽  
Jyongsik Jang ◽  
Jong-In Hong
Keyword(s):  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Organic Photovoltaic ◽  
Photovoltaic Devices ◽  
Organic Photovoltaic Devices ◽  
Higher Power

The bulk heterojunction organic photovoltaic (OPV) devices based on 3T : PC71BM (2 wt%, 1 : 1.75 w/w) exhibited a higher power conversion efficiency of 2.58% than DTT-based OPV devices.

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