Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2017

Идентификатор DOI: 10.1016/j.dyepig.2017.06.020

Аннотация: In the present work we have demonstrated double-channel emission from organic exciplexes coupled to inorganic nanoparticles. The process is demonstrated by yellow-green emission in light-emitting diodes based on organic exciplexes hybridized with perovskite-type dispersed BaZrO3 nanoparticles. Such double-channel emission provides a broadening of the electroluminescence spectrum and a resultant yellow-green emission color of the device. We have realized an energy transfer from the exciplexes arranged by the interface between two organic layers and the spherical-shaped BaZrO3 nanoparticles randomly deposited on the organic interface constructed of the tris(4-carbazoyl-9-ylphenyl)amine and 4,7-diphenyl-1,10-phenanthroline molecules. The fabricated device exhibits a current efficiency value of 3.88 C d/A, maximum brightness of 3465 cd/m2 (at 15 V), and external quantum efficiency of about 1.26%. In order to estimate the efficiency of the energy transfer from the exciplex to the BaZrO3 nanoparticles we have applied the Förster model for the dipole-dipole energy transfer accounting for the mutual overlap of the exciplex emission spectrum and the absorption spectrum of the BaZrO3 nanoparticles.

Журнал: Dyes and Pigments

Выпуск журнала: Т. 145

Номера страниц: 399-403

ISSN журнала: 01437208

Издатель: Elsevier Science Publishing Company, Inc.

• Ivaniuk K. (Lviv Polytechnic National University)
• Cherpak V. (School of Materials Science and Engineering,Georgia Institute of Technology)
• Stakhira P. (Lviv Polytechnic National University)
• Hotra Z. (Rzeszow University of Technology,Wincentego Pola 2)
• Turyk P. (Lviv Polytechnic National University)
• Zhydachevskii Y. (Institute of Physics,Polish Academy of Sciences)
• Baryshnikov G. (Division of Theoretical Chemistry and Biology,School of Biotechnology,KTH Royal Institute of Technology)
• Minaev B. (Division of Theoretical Chemistry and Biology,School of Biotechnology,KTH Royal Institute of Technology)
• Ågren H. (Institute of Nanotechnology,Spectroscopy and Quantum Chemistry,Siberian Federal University)
• Volyniuk D. (Department of Polymer Chemistry and Technology,Kaunas University of Technology)
• Grazulevicius J.V. (Department of Polymer Chemistry and Technology,Kaunas University of Technology)
• Aksimentyeva O. (Ivan Franko Lviv National University)
• Penyukh B. (Ivan Franko Lviv National University)
• Lazauskas A. (Institute of Materials Science,Kaunas University of Technology)
• Tamulevičius S. (Institute of Materials Science,Kaunas University of Technology)

• Scopus
• Web of Science Core Collection
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