Tunable light emission by exciplex state formation between hybrid halide perovskite and core/shell quantum dots: Implications in advanced LEDs and photovoltaics
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Altres documents de l'autoria: S. Sánchez, Rafael; Solís de la Fuente, Mauricio; Suárez, Isaac; Muñoz Matutano, G.; Martínez-Pastor, Juan P.; Mora-Sero, Ivan
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Mostra el registre complet de l'elementcomunitat-uji-handle:10234/9
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comunitat-uji-handle3:10234/6973
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Tunable light emission by exciplex state formation between hybrid halide perovskite and core/shell quantum dots: Implications in advanced LEDs and photovoltaicsAutoria
Data de publicació
2016Editor
American Association for the Advancement of ScienceISSN
2375-2548Cita bibliogràfica
SANCHEZ, Rafael S., et al. Tunable light emission by exciplex state formation between hybrid halide perovskite and core/shell quantum dots: Implications in advanced LEDs and photovoltaics. Science advances, 2016, vol. 2, no 1Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
http://advances.sciencemag.org/content/2/1/e1501104.abstractVersió
info:eu-repo/semantics/publishedVersionParaules clau / Matèries
Resum
We report the first observation of exciplex state electroluminescence due to carrier injection between the hybrid lead halide perovskite (MAPbI3–xClx) and quantum dots (core/shell PbS/CdS). Single layers of perovskite ... [+]
We report the first observation of exciplex state electroluminescence due to carrier injection between the hybrid lead halide perovskite (MAPbI3–xClx) and quantum dots (core/shell PbS/CdS). Single layers of perovskite (PS) and quantum dots (QDs) have been produced by solution processing methods, and their photoluminescent properties are compared to those of bilayer samples in both PS/QD and QD/PS configurations. Exciplex emission at lower energies than the band gap of both PS and QD has been detected. The exciplex emission wavelength of this mixed system can be simply tuned by controlling the QD size. Light-emitting diodes (LEDs) have been fabricated using those configurations, which provide light emission with considerably low turn-on potential. The “color” of the LED can also be tuned by controlling the applied bias. The presence of the exciplex state PS and QDs opens up a broad range of possibilities with important implications not only in tunable LEDs but also in the preparation of intermediate band gap photovoltaic devices with the potentiality of surpassing the Shockley-Queisser limit. [-]
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Science advances, 2016, vol. 2, núm. 1Drets d'accés
info:eu-repo/semantics/openAccess
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