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Color tunable hybrid light-emitting diodes based on perovskite quantum dot/conjugated polymer
Author(s): José C. Germino; Emre Yassitepe; Jilian N. Freitas; Glauco M. Santiago; Luiz Gusta Bonato; Andréia de Morais; Teresa D. Z. Atvars; Ana F. Nogueira
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Paper Abstract

Inorganic organic metal halide perovskite materials have been investigated for several technological applications, such as photovoltaic cells, lasers, photodetectors and light emitting diodes (LEDs), either in the bulk form or as colloidal nanoparticles. Recently, all inorganic Cesium Lead Halide (CsPbX3, X=Cl,Br, I) perovskite quantum dots (PQDs) were reported with high photoluminescence quantum yield with narrow emission lines in the visible wavelengths. Here, green-emitting perovskite quantum dots (PQDs) prepared by a synthetic method based on a mixture of oleylamine and oleic acid as surfactants were applied in the electroluminescent layer of hybrid LEDs in combination with two different conjugated polymers: polyvinylcarbazole (PVK) or poly(9,9-di-n-octylfluorenyl-2,7-diyl) (PFO). The performance of the diodes and the emission color tuning upon dispersion of different concentrations of the PQDs in the polymer matrix is discussed. The presented approach aims at the combination of the optical properties of the PQDs and their interaction with wide bandgap conjugated polymers, associated with the solution processing ability of these materials.

Paper Details

Date Published: 25 August 2017
PDF: 10 pages
Proc. SPIE 10363, Organic, Hybrid, and Perovskite Photovoltaics XVIII, 103630Q (25 August 2017); doi: 10.1117/12.2273322
Show Author Affiliations
José C. Germino, Univ. Estadual de Campinas (Brazil)
Emre Yassitepe, Univ. Estadual de Campinas (Brazil)
Jilian N. Freitas, Ctr. de Tecnologia da Informacao Renato Archer (Brazil)
Glauco M. Santiago, Univ. Estadual de Campinas (Brazil)
Luiz Gusta Bonato, Univ. Estadual de Campinas (Brazil)
Andréia de Morais, Ctr. de Tecnologia da Informacao Renato Archer (Brazil)
Teresa D. Z. Atvars, Univ. Estadual de Campinas (Brazil)
Ana F. Nogueira, Univ. Estadual de Campinas (Brazil)


Published in SPIE Proceedings Vol. 10363:
Organic, Hybrid, and Perovskite Photovoltaics XVIII
Zakya H. Kafafi; Paul A. Lane; Kwanghee Lee, Editor(s)

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