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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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Jagadamma, Lethy Krishnan
University of St Andrews
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (21/21 displayed)
- 2024Metal oxide vs organic semiconductor charge extraction layers for halide perovskite indoor photovoltaics
- 2023Manipulation of structure and optoelectronic properties through bromine inclusion in a layered lead bromide perovskitecitations
- 2023Chlorine retention enables the indoor light harvesting of triple halide wide bandgap perovskitescitations
- 2023Lead-free perovskite-inspired semiconductors for indoor light-harvesting - the present and the futurecitations
- 2023Status report on emerging photovoltaicscitations
- 2022Crystalline grain engineered CsPbIBr2 films for indoor photovoltaicscitations
- 2022Solution-processable perylene diimide-based electron transport materials as non-fullerene alternatives for inverted perovskite solar cellscitations
- 2022Solution-processable perylene diimide-based electron transport materials as non-fullerene alternatives for inverted perovskite solar cellscitations
- 2022Hysteresis in hybrid perovskite indoor photovoltaicscitations
- 2021Organic photovoltaics for simultaneous energy harvesting and high-speed MIMO optical wireless communicationscitations
- 2021New thiophene-based conjugated macrocycles for optoelectronic applicationscitations
- 2021New thiophene-based conjugated macrocycles for optoelectronic applicationscitations
- 2019Efficient indoor pin hybrid perovskite solar cells using low temperature solution processed NiO as hole extraction layerscitations
- 2019Interface limited hole extraction from methylammonium lead iodide filmscitations
- 2017Charge carrier localised in zero-dimensional (CH3NH3)3Bi219 clusterscitations
- 2017Charge carrier localised in zero-dimensional (CH3NH3)3Bi2I9 clusterscitations
- 2017Novel 4,8-benzobisthiazole copolymers and their field-effect transistor and photovoltaic applicationscitations
- 2016Solution-processable MoO x nanocrystals enable highly efficient reflective and semitransparent polymer solar cellscitations
- 2016Solution-processable MoOx nanocrystals enable highly efficient reflective and semitransparent polymer solar cellscitations
- 2015Polymer solar cells with efficiency >10% enabled via a facile solution-processed Al-doped ZnO electron transporting layercitations
- 2015Polymer solar cells with efficiency >10% enabled via a facile solution-processed Al-doped ZnO electron transporting layercitations
Places of action
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article
Solution-processable MoOx nanocrystals enable highly efficient reflective and semitransparent polymer solar cells
Abstract
<p>Solution-manufacturing of organic solar cells with best-in-class power conversion efficiency (PCE) will require all layers to be solution-coated without compromising solar cell performance. To date, the hole transporting layer (HTL) deposited on top of the organic bulk heterojunction layer in the inverted architecture is most commonly an ultrathin (<10 nm) metal oxide layer prepared by vacuum-deposition. Here, we show that an alcohol-based nanocrystalline MoO<sub>x</sub> suspension with carefully controlled nanocrystal (NC) size can yield state of the art reflective and semitransparent solar cells. Using NCs smaller than the target HTL thickness (∼10 nm) can yield compact, pinhole-free films which result in highly efficient polymer:fullerene bulk heterojunction (BHJ) solar cells with PCE=9.5%. The solution processed HTL is shown to achieve performance parity with vacuum-evaporated HTLs for several polymer:fullerene combinations and is even shown to work as hole injection layer in polymer light emitting diodes (PLED). We also demonstrate that larger MoO<sub>x</sub> NCs (30–50 nm) successfully composite MoO<sub>x</sub> with Ag nanowires (NW) to form a highly conducting, transparent top anode with exceptional contact properties. This yields state-of-the-art semitransparent polymer: fullerene solar cells with PCE of 6.5% and overall transmission >30%. The remarkable performance of reflective and semitransparent OPVs is due to the uncommonly high fill factors achieved using a carefully designed strategy for implementation of MoO<sub>x</sub> nanocrystals as HTL materials.</p>