Novel unsymmetrical squaraine-based small molecules for organic solar cells

2018 ◽  
Vol 6 (4) ◽  
pp. 847-854 ◽  
Author(s):  
Yao Chen ◽  
Gang Wang ◽  
Lin Yang ◽  
Jianglin Wu ◽  
Ferdinand S. Melkonyan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Power Conversion ◽  
Open Circuit ◽  
Conversion Efficiencies

New unsymmetrical squaraines for organic solar cells (OSCs) are synthesized without using highly toxic reagents. OSCs based on these squaraines exhibit an impressive open-circuit voltage of 0.92 V and power conversion efficiencies approaching 5%.

Ternary organic solar cells: using molecular donor or acceptor third components to increase open circuit voltage

2019 ◽  
Vol 43 (26) ◽  
pp. 10442-10448 ◽  
Author(s):  
Sergey V. Dayneko ◽  
Arthur D. Hendsbee ◽  
Jonathan R. Cann ◽  
Clément Cabanetos ◽  
Gregory C. Welch
Keyword(s):  
Solar Cells ◽  
Organic Photovoltaics ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Power Conversion ◽  
Open Circuit ◽  
Molecular Semiconductors ◽  
Conversion Efficiencies ◽  
Open Circuit Voltages

The addition of donor or acceptor type molecular semiconductors to PBDB-T:PC60BM based organic photovoltaics leads to increases in open circuit-voltages and overall power conversion efficiencies.

Bulk heterojunction organic solar cells based on carbazole–BODIPY conjugate small molecules as donors with high open circuit voltage

2015 ◽  
Vol 17 (40) ◽  
pp. 26580-26588 ◽  
Author(s):  
Thaksen Jadhav ◽  
Rajneesh Misra ◽  
S. Biswas ◽  
Ganesh D. Sharma
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Power Conversion Efficiency ◽  
Active Layer ◽  
Conversion Efficiency ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Open Circuit

The power conversion efficiency of an optimized3a:PC71BM active layer based device is 5.05%.

The first thieno[3,4-b]pyrazine based small molecular acceptor with a linear A2–A1–D–A1–A2 skeleton for fullerene-free organic solar cells with a high Voc of 1.05 V

2018 ◽  
Vol 54 (76) ◽  
pp. 10770-10773 ◽  
Author(s):  
Jianfeng Li ◽  
Jing Yang ◽  
Junyi Hu ◽  
You Chen ◽  
Bo Xiao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Power Conversion ◽  
Open Circuit ◽  
Moderate Power

The first thieno[3,4-b]pyrazine (TP) based non-fullerene acceptor was designed and synthesized, which could realize a moderate power conversion efficiency (PCE) of 5.81% with a high open-circuit voltage (Voc) of 1.05 V by using J61 as a donor polymer.

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

Substituent effects in magnesium tetraethynylporphyrin with two diketopyrrolopyrrole units for bulk heterojunction organic solar cells

2017 ◽  
Vol 5 (44) ◽  
pp. 23067-23077 ◽  
Author(s):  
Keisuke Ogumi ◽  
Takafumi Nakagawa ◽  
Hiroshi Okada ◽  
Ryohei Sakai ◽  
Huan Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Substituent Effects ◽  
Open Circuit ◽  
Donor Acceptor

Acceptor–donor–acceptor conjugated magnesium porphyrins showed a power conversion efficiency of 5.73%, high open-circuit voltage of 0.79 V, or an extended incident photon-to-current conversion efficiency spectrum to 1100 nm, depending on the substituents.

Study of Anode Modification and Bias Voltage Treatment on Organic Solar Cells with Rubrene/ C60 Heterojunctions

2011 ◽  
Vol 295-297 ◽  
pp. 506-510
Author(s):  
Bing Wu ◽  
Peng Yi Liu ◽  
Zi Guo Chen ◽  
Jing Cao
Keyword(s):  
Solar Cells ◽  
Electric Field ◽  
Power Conversion Efficiency ◽  
Bias Voltage ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Power Conversion ◽  
Open Circuit ◽  
Device Performance ◽  
Anode Modification

The organic solar cells with a structure of ITO/Rubrene(35 nm)/C60(35 nm)/BCP (6 nm)/Al(150 nm) was fabricated and the influence of anode modifying layer(MoO3) and 3V bias voltage treatment on device performance were investigated. The experiment results show, inserting anode modifying layer, the open-circuit voltage and the power conversion efficiency were almost increased by a factor of 5.3 and 11.3, respectively. The anode modifying layer can effectively enhance the built-in electric field and improve dissociation and transport excitons. The bias voltage treatment can improve the performance of defective devices by burning partial defects, but there is little effect for too few defective devices.

Oligothiophene-Bridged Bis(arylene ethynylene) Small Molecules for Solution-Processible Organic Solar Cells with High Open-Circuit Voltage

2013 ◽  
Vol 8 (8) ◽  
pp. 1892-1900 ◽  
Author(s):  
Qian Liu ◽  
Hongmei Zhan ◽  
Cheuk-Lam Ho ◽  
Feng-Rong Dai ◽  
Yingying Fu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Open Circuit

High-performance wide-bandgap copolymers with dithieno[3,2-b:2′,3′-d]pyridin-5(4H)-one units

2019 ◽  
Vol 3 (3) ◽  
pp. 399-402 ◽  
Author(s):  
Yaxin Gao ◽  
Dan Li ◽  
Zuo Xiao ◽  
Xin Qian ◽  
Junliang Yang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Power Conversion ◽  
Wide Bandgap ◽  
Open Circuit ◽  
Conversion Efficiencies ◽  
Open Circuit Voltages

Dithieno[3,2-b:2′,3′-d]pyridin-5(4H)-one-based wide-bandgap copolymers gave high open-circuit voltages and decent power conversion efficiencies in nonfullerene organic solar cells.

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