Recombination and charge transfer states in organic photovoltaics: from small molecules to ultra-low band gap polymers (Conference Presentation)

2018 ◽  
Author(s):  
Tracey M. Clarke ◽  
Kealan Fallon ◽  
Michelle Vezie ◽  
Enrico Salvadori ◽  
Jordan Shaikh ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Small Molecules ◽  
Band Gap ◽  
Organic Photovoltaics ◽  
Low Band Gap ◽  
Low Band Gap Polymers

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%.

Low Band Gap Polymers for Roll-to-Roll Coated Organic Photovoltaics – Design, Synthesis and Characterization

Green ◽  
2011 ◽  
Vol 1 (1) ◽  
Author(s):  
Eva Bundgaard ◽  
Ole Hagemann ◽  
Mikkel Jørgensen ◽  
Frederik C. Krebs
Keyword(s):  
Band Gap ◽  
Active Layer ◽  
Organic Photovoltaics ◽  
Large Area ◽  
Low Band Gap ◽  
Design Synthesis ◽  
Design And Synthesis ◽  
Roll To Roll ◽  
Vis Spectroscopy ◽  
Low Band Gap Polymers

AbstractIn this paper we present the design and synthesis of 25 new low band gap polymers. The polymers were characterized by UV-vis spectroscopy which showed optical band gaps of 2.0–0.9 eV. The polymers which were soluble enough were applied in organic photovoltaics, both small area devices with a spin coated active layer and in large area modules where all layers including the active layer were either roll-to-roll coated or printed. These experiments showed that the design of polymers compatible with roll-toroll coating is not straightforward and that there are various issues such as donor/acceptor fitting within the polymer, side chains to ensure solubility and HOMO/LUMO level alignment with the acceptor (e.g. [60]PCBM) to take into consideration.

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%.

scholarly journals Development and Assessment of Quinoidal Index for Designing of Low Band Gap Polymers

2017 ◽  
Vol 16 (5) ◽  
pp. 123-125 ◽  
Author(s):  
Kota OTSUKI ◽  
Yoshihiro HAYASHI ◽  
Susumu KAWAUCHI
Keyword(s):  
Band Gap ◽  
Low Band Gap ◽  
Low Band Gap Polymers

Low-band gap copolymers based on diketopyrrolopyrrole and dibenzosilole and their application in organic photovoltaics

2017 ◽  
Vol 146 ◽  
pp. 73-81 ◽  
Author(s):  
Yeon Hee Ha ◽  
Jisu Hong ◽  
Tae Kyu An ◽  
Hui-Jun Yun ◽  
Kyunghun Kim ◽  
...  
Keyword(s):  
Band Gap ◽  
Organic Photovoltaics ◽  
Low Band Gap

The effect of changes in π-conjugated terthienyl systems using thienyl and ethylenedioxybenzene functionalized thieno[3,4-b]pyrazine precursors: Multicolored low band gap polymers

2010 ◽  
Vol 55 (24) ◽  
pp. 7254-7258 ◽  
Author(s):  
Simge Tarkuc ◽  
Elif Kose Unver ◽  
Yasemin Arslan Udum ◽  
Cihangir Tanyeli ◽  
Levent Toppare
Keyword(s):  
Band Gap ◽  
Low Band Gap ◽  
Low Band Gap Polymers
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