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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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Alarousu, Erkki
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2018Ligand-Free Nanocrystals of Highly Emissive Cs4PbBr6 Perovskitecitations
- 2018Water-Induced Dimensionality Reduction in Metal-Halide Perovskitescitations
- 2017Ultralow Self-Doping in 2D Hybrid Perovskite Single Crystalscitations
- 2017Amorphous Tin Oxide as a Low-Temperature-Processed Electron-Transport Layer for Organic and Hybrid Perovskite Solar Cellscitations
- 2017Ultralong Radiative States in Hybrid Perovskite Crystals: Compositions for Submillimeter Diffusion Lengthscitations
- 2017Zero-Dimensional Cs4PbBr6 Perovskite Nanocrystalscitations
- 2016Surface Restructuring of Hybrid Perovskite Crystalscitations
- 2016Heterovalent Dopant Incorporation for Bandgap and Type Engineering of Perovskite Crystalscitations
- 2016Engineering of CH 3 NH 3 PbI 3 Perovskite Crystals by Alloying Large Organic Cations for Enhanced Thermal Stability and Transport Propertiescitations
- 2016Real-space Mapping of Surface Trap States in CIGSe Nanocrystals using 4D Electron Microscopycitations
- 2016Optoelectronic and Photovoltaic Properties of the Air-Stable Organohalide Semiconductor (CH 3 NH 3 ) 3 Bi 2 I 9citations
- 2015CH3NH3PbCl3 Single Crystals: Inverse Temperature Crystallization and Visible-Blind UV-Photodetectorcitations
- 2015High-quality bulk hybrid perovskite single crystals within minutes by inverse temperature crystallizationcitations
- 2015The Impact of Grain Alignment of the Electron Transporting Layer on the Performance of Inverted Bulk Heterojunction Solar Cellscitations
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article
Heterovalent Dopant Incorporation for Bandgap and Type Engineering of Perovskite Crystals
Abstract
Controllable doping of semiconductors is a fundamental technological requirement for electronic and optoelectronic devices. As intrinsic semiconductors, hybrid perovskites have so far been a phenomenal success in photovoltaics. The inability to dope these materials heterovalently (or aliovalently) has greatly limited their wider utilizations in electronics. Here we show an efficient in situ chemical route that achieves the controlled incorporation of trivalent cations (Bi3+, Au3+, or In3+) by exploiting the retrograde solubility behavior of perovskites. We term the new method dopant incorporation in the retrograde regime. We achieve Bi3+ incorporation that leads to bandgap tuning (∼300 meV), 104 fold enhancement in electrical conductivity, and a change in the sign of majority charge carriers from positive to negative. This work demonstrates the successful incorporation of dopants into perovskite crystals while preserving the host lattice structure, opening new avenues to tailor the electronic and optoelectronic properties of this rapidly emerging class of solution-processed semiconductors. © 2016 American Chemical Society.