Color tunable hybrid light-emitting diodes based on perovskite quantum dot/conjugated polymer

José C. Germino; Emre Yassitepe; Jilian N. Freitas; Glauco M. Santiago; Luiz Gustavo Bonato; Andréia de Morais; Teresa D. Z. Atvars; Ana F. Nogueira

doi:10.1117/12.2273322

25 August 2017 Color tunable hybrid light-emitting diodes based on perovskite quantum dot/conjugated polymer

José C. Germino, Emre Yassitepe, Jilian N. Freitas, Glauco M. Santiago, Luiz Gustavo Bonato, Andréia de Morais, Teresa D. Z. Atvars, Ana F. Nogueira

Author Affiliations +

Proceedings Volume 10363, Organic, Hybrid, and Perovskite Photovoltaics XVIII; 103630Q (2017) https://doi.org/10.1117/12.2273322
Event: SPIE Organic Photonics + Electronics, 2017, San Diego, California, United States

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.

Conference Presentation

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José C. Germino, Emre Yassitepe, Jilian N. Freitas, Glauco M. Santiago, Luiz Gustavo Bonato, Andréia de Morais, Teresa D. Z. Atvars, and Ana F. Nogueira "Color tunable hybrid light-emitting diodes based on perovskite quantum dot/conjugated polymer", Proc. SPIE 10363, Organic, Hybrid, and Perovskite Photovoltaics XVIII, 103630Q (25 August 2017); https://doi.org/10.1117/12.2273322

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