scholarly journals Effect of Post-Thermal Annealing on the Performance and Charge Photogeneration Dynamics of PffBT4T-2OD/PC71BM Solar Cells

Polymers ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 408 ◽  
Author(s):  
Wei Zhang ◽  
Rong Hu ◽  
Xiaokang Zeng ◽  
Xiaojun Su ◽  
Zhifeng Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Thermal Annealing ◽  
Power Conversion ◽  
Exciton Dissociation ◽  
High Power Conversion Efficiency ◽  
Time Resolved ◽  
Solar Cell Performance ◽  
Dissociation Efficiency ◽  
Bimolecular Recombination

In this work, we studied influence of post thermal annealing on the performance and charge photogeneration processes of PffBT4T-2OD/PC71BM solar cells. As-prepared device exhibits a high-power conversion efficiency of 9.5%, much higher than that after thermal annealing. To understand this phenomenon, we studied charge photogeneration processes in these solar cells by means of time resolved spectroscopy. We associate the degradation of solar cell performance with the reduction of exciton dissociation efficiency and with increased bimolecular recombination of photogenerated charges as a result of annealing. We correlate the generation of localized PffBT4T-2OD polarons observed via spectro-electrochemical measurements with enhancement of the bimolecular charge recombination of annealed solar cells.

Optimisation of diketopyrrolopyrrole:fullerene solar cell performance through control of polymer molecular weight and thermal annealing

2014 ◽  
Vol 2 (45) ◽  
pp. 19282-19289 ◽  
Author(s):  
Zhenggang Huang ◽  
Elisa Collado Fregoso ◽  
Stoichko Dimitrov ◽  
Pabitra Shakya Tuladhar ◽  
Ying Woan Soon ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Solar Cells ◽  
Solar Cell ◽  
Thermal Annealing ◽  
Bulk Heterojunction ◽  
Cell Performance ◽  
Polymer Molecular Weight ◽  
Solar Cell Performance ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells

The performance of bulk heterojunction solar cells based on a novel donor polymer DPP-TT-T was optimised by tuning molecular weight and thermal annealing.

Effects of CH3NH3PbI(3-x)Clx Perovskite Layer on the Performance of Inverted Type Hybrid Organic Solar Cells Based on ZnO/P3HT

2016 ◽  
Vol 846 ◽  
pp. 292-297
Author(s):  
Nasehah Syamin Sabri ◽  
Chi Chin Yap ◽  
Muhammad Yahaya ◽  
Muhamad Mat Salleh ◽  
Mohammad Hafizuddin Haji Jumali
Keyword(s):  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
Power Conversion ◽  
Nanorod Arrays ◽  
Exciton Dissociation ◽  
P3ht Film ◽  
Perovskite Layer ◽  
Solar Cell Performance ◽  
Dissociation Efficiency ◽  
Ag Deposition

This paper reports the effect of perovskite layer on enhancing the inverted type hybrid organic solar cell performance. The mixtures of methylammonium iodide (CH3NH3I) and lead (II) chloride (PbCl2) were dissolved in N,N-Dimethylformamide (DMF) solvent and was spin-coated onto fluorine-doped tin oxide (FTO) glass substrate coated with zinc oxide nanorod arrays (ZnONRAs). The poly (3-hexylthiophene-2,5-diyl) (P3HT) film was then spin-coated onto CH3NH3I(3-x)PbClx perovskite layer, followed by silver (Ag) deposition using magnetron sputtering technique. The FTO/ZnO seed/ZnONRAs/CH3NH3PbI(3-x)Clx /P3HT/Ag device was fabricated. A device without perovskite layer was also fabricated for comparison. A power conversion efficiency (PCE) of 0.56% was achieved with the introduction of perovskite layer. The PCE was approximately six times greater than the device without perovskite layer, as a result of wider light absorption range and higher exciton dissociation efficiency.

scholarly journals Enhancement of photovoltaic efficiency by insertion of a polyoxometalate layer at the anode of an organic solar cell

2014 ◽  
Vol 1 (9) ◽  
pp. 682-688 ◽  
Author(s):  
M. Alaaeddine ◽  
Q. Zhu ◽  
D. Fichou ◽  
G. Izzet ◽  
J. E. Rault ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Power Conversion Efficiency ◽  
High Power ◽  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
Power Conversion ◽  
High Power Conversion Efficiency ◽  
Photovoltaic Efficiency ◽  
Thick Layers

Thick layers of the Wells–Dawson K6[P2W18O62] highly ordered were obtained and integrated at the anodic interface of organic solar cells to reach high power conversion efficiency.

Graphene oxide as an effective interfacial layer for enhanced graphene/silicon solar cell performance

2014 ◽  
Vol 2 (37) ◽  
pp. 7715-7721 ◽  
Author(s):  
Kejia Jiao ◽  
Xueliang Wang ◽  
Yu Wang ◽  
Yunfa Chen
Keyword(s):  
Graphene Oxide ◽  
Solar Cells ◽  
Solar Cell ◽  
Performance Optimization ◽  
Interfacial Layer ◽  
High Performance ◽  
Silicon Solar Cell ◽  
Power Conversion ◽  
Silicon Solar Cells ◽  
Solar Cell Performance

Interface tailoring is an effective approach towards high performance Graphene/Silicon Schottky-barrier solar cells. Inserting a thin graphene oxide (GO) interfacial layer can improve the efficiency of graphene/silicon solar cells by >100%. Further performance optimization leads to 12.3% of power conversion efficiency (PCE). To date, a record PCE has been achieved on the same device level.

High performance low-bandgap perovskite solar cells based on a high-quality mixed Sn–Pb perovskite film prepared by vacuum-assisted thermal annealing

2018 ◽  
Vol 6 (34) ◽  
pp. 16347-16354 ◽  
Author(s):  
Meiyue Liu ◽  
Ziming Chen ◽  
Qifan Xue ◽  
Sin Hang Cheung ◽  
Shu Kong So ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Thermal Annealing ◽  
High Performance ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Perovskite Solar Cell ◽  
Film Morphology ◽  
High Quality ◽  
Low Bandgap

Vacuum-assisted thermal annealing not only could improve film morphology and crystallinity, but also could accelerate the sublimation of undesired MACl. With the help of this process, we obtain a highly efficient low-bandgap CH3NH3Sn0.5Pb0.5IxCl3−x perovskite solar cell with a power conversion efficiency of 12.3%.

Solar paint of ZnO/CdS and ZnO/CdSe based on commercial ZnO

2016 ◽  
Vol 09 (02) ◽  
pp. 1650018 ◽  
Author(s):  
Yi Guo ◽  
Xiang Zhang ◽  
Yanhong Li ◽  
Yanmei Li ◽  
Chunli Hu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Electron Transport ◽  
High Power ◽  
Light Absorption ◽  
Power Conversion ◽  
High Power Conversion Efficiency ◽  
Solar Cell Fabrication ◽  
Zno Particles ◽  
Cell Fabrication

We report a facile and cheap route to the fabrication of ZnO/CdS and ZnO/CdSe based on commercial ZnO particles. The obtained product can be directly brush printed as solar paint. The results show that the solar cell based on the mixture of ZnO/CdS and ZnO/CdSe have a better light absorption and electron transport ability, and a high power conversion efficiency (PCE) of 1.36% was obtained, which is the highest PCE reported for inorganic paint-based solar cells to date. This method greatly simplifies the process of the solar cell fabrication and opens a door toward the cheap and printable solar paint based on commercial available materials.

Enhancing perovskite solar cell performance and stability by doping barium in methylammonium lead halide

2017 ◽  
Vol 5 (34) ◽  
pp. 18044-18052 ◽  
Author(s):  
Shun-Hsiang Chan ◽  
Ming-Chung Wu ◽  
Kun-Mu Lee ◽  
Wei-Cheng Chen ◽  
Tzu-Hao Lin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Perovskite Solar Cell ◽  
Cell Performance ◽  
Solar Cell Performance ◽  
Lead Halide

The power conversion efficiency of perovskite solar cells can be enhanced by using Ba2+-doped perovskite films.

Comparative analysis of burn-in photo-degradation in non-fullerene COi8DFIC acceptor based high-efficiency ternary organic solar cells

2019 ◽  
Vol 3 (6) ◽  
pp. 1085-1096 ◽  
Author(s):  
Leiping Duan ◽  
Xianyi Meng ◽  
Yu Zhang ◽  
Haimang Yi ◽  
Ke Jin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Comparative Analysis ◽  
High Power ◽  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
High Efficiency ◽  
Power Conversion ◽  
High Power Conversion Efficiency ◽  
Photo Degradation

The ternary organic solar cell is a promising technology towards high power conversion efficiency.

Size-controlled SiO2nanoparticles as scaffold layers in thin-film perovskite solar cells

2014 ◽  
Vol 2 (39) ◽  
pp. 16429-16433 ◽  
Author(s):  
Sun Hye Hwang ◽  
Jongmin Roh ◽  
Jungsup Lee ◽  
Jaehoon Ryu ◽  
Juyoung Yun ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Solar Cell ◽  
Power Conversion Efficiency ◽  
High Power ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Perovskite Solar Cell ◽  
High Power Conversion Efficiency ◽  
Size Controlled

The effects of scaffold layers composed of SiO2NPs with diameters of 15, 30, 50, 70, and 100 nm on the properties of a perovskite film were investigated . Among the various sizes of SiO2NPs, the performance of a 50 nm diameter SiO2NP based perovskite solar cell presented a high power-conversion efficiency (PCE) of 11.45%.

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