Enhanced open-circuit voltage in polymer solar cells by dithieno[3,2-b:2′,3′-d]pyrrole N-acylation

2014 ◽  
Vol 2 (20) ◽  
pp. 7535-7545 ◽  
Author(s):  
Wouter Vanormelingen ◽  
Jurgen Kesters ◽  
Pieter Verstappen ◽  
Jeroen Drijkoningen ◽  
Julija Kudrjasova ◽  
...  
Keyword(s):  
Solar Cells ◽  
Open Circuit Voltage ◽  
Polymer Solar Cells ◽  
Power Conversion ◽  
Open Circuit ◽  
Higher Power ◽  
Conversion Efficiencies ◽  
Open Circuit Voltages

N-Acylation of dithieno[3,2-b:2′,3′-d]pyrrole (DTP) leads to enhanced open-circuit voltages and hence higher power conversion efficiencies in polymer solar cells.

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.

Large band-gap copolymers based on a 1,2,5,6-naphthalenediimide unit for polymer solar cells with high open circuit voltages and power conversion efficiencies

2016 ◽  
Vol 4 (19) ◽  
pp. 7372-7381 ◽  
Author(s):  
Zuojia Li ◽  
Kui Feng ◽  
Jiang Liu ◽  
Jun Mei ◽  
Ying Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Polymer Solar Cells ◽  
Power Conversion ◽  
Open Circuit ◽  
Active Layers ◽  
Photovoltaic Applications ◽  
Conversion Efficiencies ◽  
Open Circuit Voltages

Large band-gap copolymers based on 1,2,5,6-naphthalenediimide were developed for photovoltaic applications. A PCE of 6.35% was obtained by gradually optimizing the morphology of active layers.

scholarly journals Micro-sized thin-film solar cells via area-selective electrochemical deposition for concentrator photovoltaics application

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Daniel Siopa ◽  
Khalil El Hajraoui ◽  
Sara Tombolato ◽  
Finn Babbe ◽  
Alberto Lomuscio ◽  
...  
Keyword(s):  
Solar Cells ◽  
Concentration Factor ◽  
Power Conversion ◽  
Open Circuit ◽  
Photovoltaic Devices ◽  
Large Area ◽  
Higher Power ◽  
Light Concentration ◽  
Conversion Efficiencies ◽  
Open Circuit Voltages

Abstract Micro-concentrator solar cells enable higher power conversion efficiencies and material savings when compared to large-area non-concentrated solar cells. In this study, we use materials-efficient area-selective electrodeposition of the metallic elements, coupled with selenium reactive annealing, to form Cu(In,Ga)Se2 semiconductor absorber layers in patterned microelectrode arrays. This process achieves significant material savings of the low-abundance elements. The resulting copper-poor micro-absorber layers’ composition and homogeneity depend on the deposition charge, where higher charge leads to greater inhomogeneity in the Cu/In ratio and to a patchy presence of a CuIn5Se8 OVC phase. Photovoltaic devices show open-circuit voltages of up to 525 mV under a concentration factor of 18 ×, which is larger than other reported Cu(In,Ga)Se2 micro-solar cells fabricated by materials-efficient methods. Furthermore, a single micro-solar cell device, measured under light concentration, displayed a power conversion efficiency of 5% under a concentration factor of 33 ×. These results show the potential of the presented method to assemble micro-concentrator photovoltaic devices, which operate at higher efficiencies while using light concentration.

Incorporating a vertical BDT unit in conjugated polymers for drastically improving the open-circuit voltage of polymer solar cells

2016 ◽  
Vol 40 (6) ◽  
pp. 5300-5305 ◽  
Author(s):  
Shuguang Wen ◽  
Manjun Xiao ◽  
Wenfei Shen ◽  
Chuantao Gu ◽  
Dangqiang Zhu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Conjugated Polymers ◽  
Open Circuit Voltage ◽  
Polymer Solar Cells ◽  
Open Circuit ◽  
Open Circuit Voltages

High open circuit voltages (Vocs) of over 1.0 V were obtained for solar cell devices based on vertical BDT-containing conjugated polymers.

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.

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%.

scholarly journals Efficient Polymer Solar Cells with Open-Circuit Voltage of 1.01 V and Power Conversion Efficiency of 8.09%

ACS Omega ◽  
2018 ◽  
Vol 3 (9) ◽  
pp. 11562-11568 ◽  
Author(s):  
Simei Zeng ◽  
Huixin Qi ◽  
Bohan Yu ◽  
Xiaoling Ma ◽  
Miao Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Open Circuit Voltage ◽  
Polymer Solar Cells ◽  
Power Conversion ◽  
Open Circuit

Enhancing the power conversion efficiency of polymer solar cells to 9.26% by a synergistic effect of fluoro and carboxylate substitution

2016 ◽  
Vol 4 (21) ◽  
pp. 8097-8104 ◽  
Author(s):  
Yahui Liu ◽  
Wenchao Zhao ◽  
Yang Wu ◽  
Jicheng Zhang ◽  
Guangwu Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Synergistic Effect ◽  
Conjugated Polymers ◽  
Power Conversion Efficiency ◽  
Functional Groups ◽  
Conversion Efficiency ◽  
Open Circuit Voltage ◽  
Polymer Solar Cells ◽  
Power Conversion ◽  
Open Circuit

Two conjugated polymers (P1, P2) were designed and used as donor materials for polymer solar cells. The open-circuit voltage was significantly improved to 0.85 V. The synergistic effect of combined carboxylate and fluoro functional groups promoted the PCE to as high as 9.26%.

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