Eliminating nonradiative decay in Cu(I) emitters: >99% quantum efficiency and microsecond lifetime
| Autor: | Mark E. Thompson, Rasha Hamze, Daniel Sylvinson, Rodolphe Jazzar, Ralf Haiges, Guy Bertrand, Peter I. Djurovich, Michele Soleilhavoup, José W. Cárdenas, Moon Chul Jung, Jesse L Peltier |
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| Přispěvatelé: | UCSD-CNRS Joint Research Chemistry Laboratory (UMI 3555), University of California [San Diego] (UC San Diego), University of California-University of California-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Multidisciplinary
Photoluminescence 010405 organic chemistry [CHIM.ORGA]Chemical Sciences/Organic chemistry chemistry.chemical_element [CHIM.CATA]Chemical Sciences/Catalysis [CHIM.INOR]Chemical Sciences/Inorganic chemistry 010402 general chemistry Photochemistry 01 natural sciences Copper 0104 chemical sciences Ruthenium Microsecond chemistry OLED Quantum efficiency [CHIM.COOR]Chemical Sciences/Coordination chemistry Iridium Singlet state ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Science Science, American Association for the Advancement of Science, 2019, 363 (6427), pp.601-606. ⟨10.1126/science.aav2865⟩ |
| ISSN: | 0036-8075 1095-9203 |
| Popis: | Helping copper glow Copper's abundance makes the metal an appealing candidate for luminescence applications. However, many copper complexes tend to decay nonradiatively after photoexcitation. A recently described exception involves a two-coordinate complex that sandwiches the metal between an amide ligand and a carbene ligand. Hamze et al. thoroughly explored this motif and measured a nearly perfect luminescence efficiency. They used this property to produce a prototype blue organic light-emitting diode. The photodynamics appeared largely ligand-centered, with the excited state attributed to copper-facilitated charge transfer from amide to carbene. Science , this issue p. 601 |
| Databáze: | OpenAIRE |
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