Unlocking the potential of diketopyrrolopyrrole-based solar cells by a pre-solvent annealing method in all-solution processing

RSC Advances ◽  
2016 ◽  
Vol 6 (58) ◽  
pp. 53587-53595 ◽  
Author(s):  
Ting Xu ◽  
Lijia Yan ◽  
Jingsheng Miao ◽  
Zhao Hu ◽  
Shan Shao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Solution Processing ◽  
Synthetic Route ◽  
Solvent Annealing ◽  
Donor Material ◽  
Polymer Photovoltaics ◽  
Annealing Method

A novel synthetic route for a diketopyrrolopyrrole-based DPP-ANT donor material is demonstrated and applied in polymer photovoltaics. The power conversion efficiency is more than four times that of an unannealed device.

Improvement of the power conversion efficiency of polymeric solar cells based on P3HT:PCBM through interfacial modification

2011 ◽  
Vol 1322 ◽  
Author(s):  
Shizhao Zheng ◽  
Xianyu Deng ◽  
King Y. Wong
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Active Material ◽  
Acid Methyl Ester ◽  
Solvent Annealing ◽  
Interfacial Modification ◽  
Prolonged Duration ◽  
Poly Styrene Sulfonate

ABSTRACTWe report the study of a process which enhances the power conversion efficiency (PCE) of solar cells employing poly(3-hexythiophene) and [6,6]-phenyl-C61-butyric acid methyl ester (P3HT:PCBM). In this process, the spin-coated solution of the active material was maintained in the liquid state for a prolonged duration. It was observed that through this process, the PCE of the device was enhanced by 31% for the case of a fast-grown film. It also provided a further 19% enhancement on top of the enhancement obtained by the familiar solvent annealing process. We found that this process depends critically on the presence of a poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) buffer layer. It is hypothesized that the action of this enhancement process involves the interfacial interactions between P3HT and PEDOT polymers.

Vacuum assisted solution processing for highly efficient Sb2S3 solar cells

2018 ◽  
Vol 6 (34) ◽  
pp. 16322-16327 ◽  
Author(s):  
Rongfeng Tang ◽  
Xiaomin Wang ◽  
Chenhui Jiang ◽  
Shiang Li ◽  
Guoshun Jiang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
High Power ◽  
Surface Coverage ◽  
High Surface ◽  
Power Conversion ◽  
Solution Processing ◽  
High Power Conversion Efficiency ◽  
Phase Purity

Vacuum assisted solution processing is capable of fabricating Sb2S3 films with high surface coverage, high crystallinity and phase purity, leading to a high power conversion efficiency of 6.78%.

Vacuum processable donor material based on dithieno[3,2-b:2′,3′-d]thiophene and pyrene for efficient organic solar cells

RSC Advances ◽  
2014 ◽  
Vol 4 (47) ◽  
pp. 24453-24457 ◽  
Author(s):  
Jongchul Kwon ◽  
Tae-Min Kim ◽  
Hong-Se Oh ◽  
Jang-Joo Kim ◽  
Jong-In Hong
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Donor Material ◽  
Heterojunction Device ◽  
Efficient Power

A bulk heterojunction device based on DDT : C70 = 1 : 4 exhibited an efficient power conversion efficiency of 3.60%.

scholarly journals Simultaneous spin-coating and solvent annealing: manipulating the active layer morphology to a power conversion efficiency of 9.6% in polymer solar cells

2015 ◽  
Vol 2 (6) ◽  
pp. 592-597 ◽  
Author(s):  
Zhicai He ◽  
Feng Liu ◽  
Cheng Wang ◽  
Jihua Chen ◽  
Lilin He ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Active Layer ◽  
Conversion Efficiency ◽  
Spin Coating ◽  
Polymer Solar Cells ◽  
Power Conversion ◽  
Solvent Annealing

We demonstrate spin coating together with solvent annealing, which can be used to tune the morphology of the BHJ active layer and thus enhance device performances.

Solution-processed bulk heterojunction solar cells based on a porphyrin small molecule with 7% power conversion efficiency

2014 ◽  
Vol 7 (4) ◽  
pp. 1397-1401 ◽  
Author(s):  
Hongmei Qin ◽  
Lisheng Li ◽  
Fangqing Guo ◽  
Shijian Su ◽  
Junbiao Peng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Small Molecule ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Solution Processed ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells ◽  
Donor Material

Solution-processed BHJ solar cells based on a porphyrin small molecule as the donor material exhibit a PCE of up to 7.23%.

A thiourea additive-based quadruple cation lead halide perovskite with an ultra-large grain size for efficient perovskite solar cells

Nanoscale ◽  
2019 ◽  
Vol 11 (45) ◽  
pp. 21824-21833 ◽  
Author(s):  
Jyoti V. Patil ◽  
Sawanta S. Mali ◽  
Chang Kook Hong
Keyword(s):  
Thin Films ◽  
Grain Size ◽  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Inorganic Perovskite ◽  
Halide Perovskite ◽  
Lead Halide

Controlling the grain size of the organic–inorganic perovskite thin films using thiourea additives now crossing 2 μm size with >20% power conversion efficiency.

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.

scholarly journals High performance tandem organic solar cells via a strongly infrared-absorbing narrow bandgap acceptor

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Zhenrong Jia ◽  
Shucheng Qin ◽  
Lei Meng ◽  
Qing Ma ◽  
Indunil Angunawela ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Organic Solar Cells ◽  
High Performance ◽  
Short Circuit ◽  
Power Conversion ◽  
High Power Conversion Efficiency ◽  
Device Structure ◽  
Narrow Bandgap

AbstractTandem organic solar cells are based on the device structure monolithically connecting two solar cells to broaden overall absorption spectrum and utilize the photon energy more efficiently. Herein, we demonstrate a simple strategy of inserting a double bond between the central core and end groups of the small molecule acceptor Y6 to extend its conjugation length and absorption range. As a result, a new narrow bandgap acceptor BTPV-4F was synthesized with an optical bandgap of 1.21 eV. The single-junction devices based on BTPV-4F as acceptor achieved a power conversion efficiency of over 13.4% with a high short-circuit current density of 28.9 mA cm−2. With adopting BTPV-4F as the rear cell acceptor material, the resulting tandem devices reached a high power conversion efficiency of over 16.4% with good photostability. The results indicate that BTPV-4F is an efficient infrared-absorbing narrow bandgap acceptor and has great potential to be applied into tandem organic solar cells.

scholarly journals Digital printing of a novel electrode for stable flexible organic solar cells with a power conversion efficiency of 8.5%

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
S. Wageh ◽  
Mahfoudh Raïssi ◽  
Thomas Berthelot ◽  
Matthieu Laurent ◽  
Didier Rousseau ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Organic Solar Cells ◽  
Power Conversion ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Solution Processed ◽  
Transparent Conducting

AbstractPoly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) mixed with single-wall nanotubes (SWNTs) (10:1) and doped with (0.1 M) perchloric acid (HClO4) in a solution-processed film, working as an excellent thin transparent conducting film (TCF) in organic solar cells, was investigated. This new electrode structure can be an outstanding substitute for conventional indium tin oxide (ITO) for applications in flexible solar cells due to the potential of attaining high transparency with enhanced conductivity, good flexibility, and good durability via a low-cost process over a large area. In addition, solution-processed vanadium oxide (VOx) doped with a small amount of PEDOT-PSS(PH1000) can be applied as a hole transport layer (HTL) for achieving high efficiency and stability. From these viewpoints, we investigate the benefit of using printed SWNTs-PEDOT-PSS doped with HClO4 as a transparent conducting electrode in a flexible organic solar cell. Additionally, we applied a VOx-PEDOT-PSS thin film as a hole transporting layer and a blend of PTB7 (polythieno[3,4-b] thiophene/benzodithiophene): PC71BM (phenyl-C71-butyric acid methyl ester) as an active layer in devices. Zinc oxide (ZnO) nanoparticles were applied as an electron transport layer and Ag was used as the top electrode. The proposed solar cell structure showed an enhancement in short-circuit current, power conversion efficiency, and stability relative to a conventional cell based on ITO. This result suggests a great carrier injection throughout the interfacial layer, high conductivity and transparency, as well as firm adherence for the new electrode.

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