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Jul 26, 2024 | 
nature.com | Xinglong Ren |Ian Jacobs |Gabriele D’Avino |Andreas Opitz |Yuxuan Huang |Ahmet Hamdi Unal | +10 more
AbstractConducting polymers are mixed ionic–electronic conductors that are emerging candidates for neuromorphic computing, bioelectronics and thermoelectrics. However, fundamental aspects of their many-body correlated electron–ion transport physics remain poorly understood. Here we show that in p-type organic electrochemical transistors it is possible to remove all of the electrons from the valence band and even access deeper bands without degradation.
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Jun 19, 2024 | 
nature.com | Hwan-Hee Cho |Sebastian Gorgon |Giacomo Londi |Samuele Giannini |Changsoon Cho |Pratyush Ghosh | +8 more
AbstractThe development of luminescent organic radicals has resulted in materials with excellent optical properties for near-infrared emission. Applications of light generation in this range span from bioimaging to surveillance. Although the unpaired electron arrangements of radicals enable efficient radiative transitions within the doublet-spin manifold in organic light-emitting diodes, their performance is limited by non-radiative pathways introduced in electroluminescence.
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Jun 7, 2024 | 
nature.com | Dongqi Li |Wenhao Zheng |Michal Horak |Shengqiang Zhou |Paweł P. Michałowski |Ehrenfried Zschech | +4 more
AbstractSurface terminations profoundly influence the intrinsic properties of MXenes, but existing terminations are limited to monoatomic layers or simple groups, showing disordered arrangements and inferior stability. Here we present the synthesis of MXenes with triatomic-layer borate polyanion terminations (OBO terminations) through a flux-assisted eutectic molten etching approach.
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Jun 4, 2024 | 
pubs.rsc.org | Samuele Giannini |Giacomo Prampolini |Fabrizio Santoro |David Beljonne
Dissecting the nature and dynamics of electronic excitations in a solid-state aggregate of a representative non-fullerene acceptor
Understanding electronic excitations and their dynamics in non-fullerene acceptor (NFA) materials is crucial for improving the efficiency of opto-electronic devices.
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Apr 22, 2024 | 
nature.com | Yao Zhao |Vincent Lemaur |Ye Zou |David Beljonne |Fengjiao Zhang |Chong-an Di | +1 more
AbstractNanoresolved doping of polymeric semiconductors can overcome scaling limitations to create highly integrated flexible electronics, but remains a fundamental challenge due to isotropic diffusion of the dopants. Here we report a general methodology for achieving nanoscale ion-implantation-like electrochemical doping of polymeric semiconductors.
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Jan 3, 2024 | 
nature.com | Samuele Giannini |Vincent Lemaur |Linjun Wang |Claudio Quarti |David Beljonne
AbstractThe charge-transport properties of conjugated polymers have been studied extensively for opto-electronic device applications. Some polymer semiconductors not only support the ambipolar transport of electrons and holes, but do so with comparable carrier mobilities.
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Nov 8, 2023 | 
chemistry-europe.onlinelibrary.wiley.com | Hugo Puozzo |Shamil Saiev |Leila Bonnaud |David Beljonne
Supporting Information As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors.
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Aug 16, 2023 | 
nature.com | Sebastian Gorgon |Bluebell H. Drummond |William Myers |Claire Tonnelé |Petri Murto |David Oliete Casanova | +4 more
AbstractMolecules present a versatile platform for quantum information science1,2 and are candidates for sensing and computation applications3,4. Robust spin-optical interfaces are key to harnessing the quantum resources of materials5. To date, carbon-based candidates have been non-luminescent6,7, which prevents optical readout via emission. Here we report organic molecules showing both efficient luminescence and near-unity generation yield of excited states with spin multiplicity S > 1.
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Aug 7, 2023 | 
nature.com | Hugo Levy-Falk |Loïc Rondin |David Beljonne |Gaspard Huber |Jean-Sébastien Lauret
AbstractNanographene materials are promising building blocks for the growing field of low-dimensional materials for optics, electronics and biophotonics applications. In particular, bottom-up synthesized 0D graphene quantum dots show great potential as single quantum emitters. To fully exploit their exciting properties, the graphene quantum dots must be of high purity; the key parameter for efficient purification being the solubility of the starting materials.
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Jun 19, 2023 | 
nature.com | Mingchao Wang |Shuai Fu |Petko H. Petkov |Yubin Fu |Zhitao Zhang |Yannan Liu | +8 more
AbstractTwo-dimensional conjugated polymers (2DCPs), composed of multiple strands of linear conjugated polymers with extended in-plane π-conjugation, are emerging crystalline semiconducting polymers for organic (opto)electronics. They are represented by two-dimensional π-conjugated covalent organic frameworks, which typically suffer from poor π-conjugation and thus low charge carrier mobilities.
