Design and Properties of Intermediate-Sized Narrow Band-Gap Conjugated Molecules Relevant to Solution-Processed Organic Solar Cells

2014 ◽  
Vol 136 (15) ◽  
pp. 5697-5708 ◽  
Author(s):  
Xiaofeng Liu ◽  
Yanming Sun ◽  
Ben B. Y. Hsu ◽  
Andreas Lorbach ◽  
Li Qi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Narrow Band ◽  
Conjugated Molecules ◽  
Solution Processed

Narrow band-gap oligomer for solution-processed heterojunction organic solar cells

2008 ◽  
Vol 158 (3-4) ◽  
pp. 125-129 ◽  
Author(s):  
Mingliang Sun ◽  
Li Wang ◽  
Bin Du ◽  
Yan Xiong ◽  
Ransheng Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Narrow Band ◽  
Solution Processed

Narrow band gap isoindigo-based small molecules for solution-processed organic solar cells with high open-circuit voltage

2016 ◽  
Vol 220 ◽  
pp. 448-454 ◽  
Author(s):  
Changyan Ji ◽  
Lunxiang Yin ◽  
Bao Xie ◽  
Xiaochen Wang ◽  
Xu Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Narrow Band ◽  
Open Circuit ◽  
Solution Processed

Diketopyrrolopyrrole-based narrow band gap donors for efficient solution-processed organic solar cells

2015 ◽  
Vol 630 ◽  
pp. 37-43 ◽  
Author(s):  
Sushil S. Bagde ◽  
Hanok Park ◽  
Seon-nam Yang ◽  
Sung-Ho Jin ◽  
Soo-Hyoung Lee
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Efficient Solution ◽  
Narrow Band ◽  
Solution Processed

A narrow band gap isoindigo based molecular donor for solution processed organic solar cells

2015 ◽  
Vol 39 (7) ◽  
pp. 5075-5079 ◽  
Author(s):  
Jetsuda Areephong ◽  
Ronan R. San Juan ◽  
Abby-Jo Payne ◽  
Gregory C. Welch
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Active Layer ◽  
Small Molecule ◽  
Organic Photovoltaics ◽  
Organic Solar Cells ◽  
Narrow Band ◽  
Solution Processed

Organic photovoltaics devices with 3.2% PCE were demonstrated using an isoindigo small molecule donor: fullerene acceptor active layer.

scholarly journals Planar D-π-A Configured Dimethoxy Vinylbenzene Based Small Organic Molecule for Solution-Processed Bulk Heterojunction Organic Solar Cells

2020 ◽  
Vol 10 (17) ◽  
pp. 5743
Author(s):  
Shabaz Alam ◽  
M. Shaheer Akhtar ◽  
Abdullah ◽  
Eun-Bi Kim ◽  
Hyung-Shik Shin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Power Conversion Efficiency ◽  
Organic Solar Cells ◽  
Organic Molecule ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Solution Processed ◽  
Small Organic Molecule ◽  
Donor Material

A new and effective planar D-π-A configured small organic molecule (SOM) of 2-5-(3,5-dimethoxystyryl)thiophen-2-yl)methylene)-1H-indene-1,3(2H)-dione, abbreviated as DVB-T-ID, was synthesized using 1,3-indanedione acceptor and dimethoxy vinylbenzene donor units, connected through a thiophene π-spacer. The presence of a dimethoxy vinylbenzene unit and π-spacer in DVB-T-ID significantly improved the absorption behavior by displaying maximum absorbance at ~515 nm, and the reasonable band gap was estimated as ~2.06 eV. The electronic properties revealed that DVB-T-ID SOMs exhibited promising HOMO (−5.32 eV) and LUMO (−3.26 eV). The synthesized DVB-T-ID SOM was utilized as donor material for fabricating solution-processed bulk heterojunction organic solar cells (BHJ-OSCs) and showed a reasonable power conversion efficiency (PCE) of ~3.1% with DVB-T-ID:PC61BM (1:2, w/w) active layer. The outcome of this work clearly reflects that synthesized DVB-T-ID based on 1,3-indanedione units is a promising absorber (donor) material for BHJ-OSCs.

Branched versus linear: side-chain effect on fluorinated wide bandgap donors and their applications in organic solar cells

2020 ◽  
Vol 44 (3) ◽  
pp. 753-760
Author(s):  
Tainan Duan ◽  
Ru-Ze Liang ◽  
Yingying Fu ◽  
Yuying Chang ◽  
Zhipeng Kan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Organic Molecules ◽  
Wide Band ◽  
Wide Bandgap ◽  
Side Chain ◽  
Wide Band Gap ◽  
Solution Processed ◽  
Small Organic Molecules

We report a new series of wide band-gap small organic molecules as donor-materials featuring an indaceno[1,2-b:5,6-b′]dithiophene (IDT) core and fluorinated thiophene linkers for solution-processed organic solar cells.

NIR absorbing D–π–A–π–D structured diketopyrrolopyrrole–dithiafulvalene based small molecule for solution processed organic solar cells

2016 ◽  
Vol 52 (1) ◽  
pp. 210-213 ◽  
Author(s):  
K. Narayanaswamy ◽  
A. Venkateswararao ◽  
Vinay Gupta ◽  
Suresh Chand ◽  
Surya Prakash Singh
Keyword(s):  
Molecular Structure ◽  
Solar Cells ◽  
Band Gap ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Solution Processed ◽  
Low Band Gap

A new low band gap small molecule DPP–DTF with a D–π–A–π–D molecular structure composed of a dithiafulvalene (DTF) donor and a diketopyrrolopyrrole (DPP) acceptor was synthesized and tested for organic solar cells.

Solution-processed small molecules with ethynylene bridges for highly efficient organic solar cells

2016 ◽  
Vol 4 (38) ◽  
pp. 14720-14728 ◽  
Author(s):  
Yuanyuan Kan ◽  
Chang Liu ◽  
Lianjie Zhang ◽  
Ke Gao ◽  
Feng Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Conjugated Molecules ◽  
Solution Processed ◽  
Highly Efficient

Inserting ethynylene bridges in conjugated molecules can enhance high open-circuit voltage and fill factors to improve photovoltaic performances in organic solar cells.

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