| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Silva, S. Ravi P.
University of Surrey
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2021Solvent Engineering as a Vehicle for High Quality Thin Films of Perovskites and Their Device Fabricationcitations
- 2021A synergistic Cs2CO3 ETL treatment to incorporate Cs cation into perovskite solar cells via two-step scalable fabricationcitations
- 2020Hot carriers in mixed Pb-Sn halide perovskite semiconductors cool slowly while retaining their electrical mobilitycitations
- 2020Determining the Level and Location of Functional Groups on Few-Layer Graphene and Their Effect on the Mechanical Properties of Nanocompositescitations
- 2020Determining the Level and Location of Functional Groups on Few-Layer Graphene and Their Effect on the Mechanical Properties of Nanocomposites.citations
- 2019X-ray micro-computed tomography as a non-destructive tool for imaging the uptake of metal nanoparticles by graphene-based 3D carbon structurescitations
- 2018Physicochemical characterisation of reduced graphene oxide for conductive thin filmscitations
- 2016Multi-Functional Carbon Fibre Composites using Carbon Nanotubes as an Alternative to Polymer Sizingcitations
- 2016Achieving 6.7% Efficiency in P3HT/Indene‐C70 Bisadduct Solar Cells through the Control of Vertical Volume Fraction Distribution and Optimized Regio‐Isomer Ratioscitations
- 2016Using Molecular Simulation to Explore Unusually Low Moisture Uptake in Amine-Cured Epoxy Carbon Fiber Reinforced Nanocomposites
- 2015Dramatic reductions in water uptake observed in novel POSS nanocomposites based on anhydride-cured epoxy matrix resinscitations
- 2014Towards the rational design of polymers using molecular simulation:Predicting the effect of cure schedule on thermo-mechanical properties for a cycloaliphatic amine-cured epoxy resincitations
- 2014Hybrid Graphene-Metal Oxide Solution Processed Electron Transport Layers for Large Area High-Performance Organic Photovoltaicscitations
- 2014Towards the rational design of polymers using molecular simulationcitations
- 2013Hybrid Carbon Nanotube Networks as Efficient Hole Extraction Layers for Organic Photovoltaicscitations
- 2013Organic solar cells with plasmonic layers formed by laser nanofabricationcitations
- 2006Structural and optoelectronic properties of C60 rods obtained via a rapid synthesis routecitations
Places of action
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article
Achieving 6.7% Efficiency in P3HT/Indene‐C70 Bisadduct Solar Cells through the Control of Vertical Volume Fraction Distribution and Optimized Regio‐Isomer Ratios
Abstract
Indene C60 and C70 bisadducts (IC60BA and IC70BA) have relatively high lowest unoccupied molecular orbital energies. In poly(3‐hexylthiophene) (P3HT)‐based polymer solar cells (PSCs), this produces an increase in open‐circuit voltage (VOC) and power conversion efficiency (PCE). However, ICBA synthesis produces a mixture of regio‐isomers with different indene spatial orientations (2, 5, and 12 o'clock) that alter the IC70BA molecular packing when mixed with P3HT. In this paper, how the IC70BA regio‐isomerism affects the PSC performance is examined by investigating the molecular packing of P3HT:IC70BA layers with different regio‐isomeric ratios. For the first time, non‐destructive spectroscopic ellipsometry is used to investigate the effect of the fabrication conditions on the P3HT/IC70BA vertical volume fraction distribution and the results are attributed to the spatial arrangement of the regio‐isomers. It is demonstrated that this unambiguously affects the PSC performance. As a result, record device efficiencies are repeatedly attained for standard architecture P3HT:IC70BA PSCs with photoactive areas of 0.43 cm2, achieving 5.9 (±0.4)% PCE (n = 15). With control of the IC70BA constituent, device PCEs vary from below 2.2% to peak values above 6.7%, among the highest recorded PCEs for a P3HT combination, highlighting the importance of the molecular phase separation for high‐efficiency devices.