scholarly journals Reduced bimolecular recombination in blade-coated, high-efficiency, small-molecule solar cells

2017 ◽  
Vol 5 (15) ◽  
pp. 6893-6904 ◽  
Author(s):  
Sebastian Engmann ◽  
Hyun Wook Ro ◽  
Andrew A. Herzing ◽  
Dean M. DeLongchamp ◽  
Chad R. Snyder ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
High Efficiency ◽  
Bulk Heterojunction ◽  
Annealing Process ◽  
Device Performance ◽  
Solvent Vapor ◽  
Vapor Annealing ◽  
Bimolecular Recombination ◽  
Solvent Vapor Annealing

We report the performance and morphology of blade-coated bulk heterojunction devices based on the small molecule donor p-DTS(FBTTh2)2 treated with a postdeposition solvent vapor annealing process that improves the device performance and significantly reduces bimolecular recombination.

scholarly journals Engineered exciton diffusion length enhances device efficiency in small molecule photovoltaics

2018 ◽  
Vol 6 (20) ◽  
pp. 9445-9450 ◽  
Author(s):  
Muhammad T. Sajjad ◽  
Oskar Blaszczyk ◽  
Lethy Krishnan Jagadamma ◽  
Thomas J. Roland ◽  
Mithun Chowdhury ◽  
...  
Keyword(s):  
Organic Semiconductors ◽  
Small Molecule ◽  
Diffusion Length ◽  
Bulk Heterojunction ◽  
Domain Size ◽  
Device Performance ◽  
Solvent Vapor ◽  
Exciton Diffusion Length ◽  
Vapor Annealing ◽  
Solvent Vapor Annealing

A post processing method of solvent vapor annealing (SVA) enhances the diffusion length (LD) and domain size in small molecule organic semiconductors which leads to an enhancement in device performance in bulk heterojunction organic photovoltaics.

Phenothiazine-based small-molecule organic solar cells with power conversion efficiency over 7% and open circuit voltage of about 1.0 V using solvent vapor annealing

2018 ◽  
Vol 20 (9) ◽  
pp. 6321-6329 ◽  
Author(s):  
Yogajivan Rout ◽  
Rajneesh Misra ◽  
Rahul Singhal ◽  
Subhayan Biswas ◽  
Ganesh D. Sharma
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Open Circuit ◽  
Solvent Vapor ◽  
Heterojunction Solar Cells ◽  
Vapor Annealing ◽  
Solvent Vapor Annealing

We have used two unsymmetrical small molecules with a D–A–D–π–D configuration as small molecule donors, along with PC71BM as an acceptor, for solution processed bulk heterojunction solar cells.

Understanding the effect of solvent vapor annealing on solution-processed A–D–A oligothiophene bulk-heterojunction solar cells: the role of alkyl side chains

2016 ◽  
Vol 4 (7) ◽  
pp. 2571-2580 ◽  
Author(s):  
Cordula D. Wessendorf ◽  
Ana Perez-Rodriguez ◽  
Jonas Hanisch ◽  
Andreas P. Arndt ◽  
Ibrahim Ata ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Solvent Vapor ◽  
Heterojunction Solar Cells ◽  
Effect Of Solvent ◽  
Vapor Annealing ◽  
Alkyl Side Chains ◽  
Solvent Vapor Annealing

Solvent vapor annealing (SVA) can strongly influence the morphology of oligomer:fullerene based organic solar cells.

scholarly journals Improving the efficiencies of small molecule solar cells by solvent vapor annealing to enhance J-aggregation

2019 ◽  
Vol 7 (31) ◽  
pp. 9618-9624 ◽  
Author(s):  
Liangang Xiao ◽  
Zhengdong Li ◽  
Qin Hu ◽  
Yawei Liu ◽  
Wenkai Zhong ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Small Molecule ◽  
Film Morphology ◽  
Solvent Vapor ◽  
Vapor Annealing ◽  
Solvent Vapor Annealing

The enhanced J-aggregation increases the crystallinity of the small molecules and forms a favorable film morphology with a fiber-like structure.

The synergistic effect of cooperating solvent vapor annealing for high-efficiency planar inverted perovskite solar cells

2019 ◽  
Vol 7 (48) ◽  
pp. 27267-27277 ◽  
Author(s):  
Ahra Yi ◽  
Sangmin Chae ◽  
Hanbin Lee ◽  
Hyo Jung Kim
Keyword(s):  
Solar Cells ◽  
Synergistic Effect ◽  
Treatment Process ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Solvent Vapor ◽  
Vapor Annealing ◽  
Solvent Vapor Annealing ◽  
Post Treatment Process

We propose co-solvent vapor annealing (SVA) as an effective post-treatment process to improve the quality of crystals and grains for high-efficiency perovskite solar cells.

An ionic compensation strategy for high-performance mesoporous perovskite solar cells: healing defects with tri-iodide ions in a solvent vapor annealing process

2019 ◽  
Vol 7 (1) ◽  
pp. 353-362 ◽  
Author(s):  
Tie Liu ◽  
Pengyu Su ◽  
Li Liu ◽  
Jun Wang ◽  
Shuang Feng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Surface Morphology ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Annealing Process ◽  
Compensation Strategy ◽  
Solvent Vapor ◽  
Iodide Ions ◽  
Vapor Annealing ◽  
Solvent Vapor Annealing

The surface morphology and J–V curves of CH3NH3PbI3 films with and without IPA/[I3−] treatment.

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