Erbium photoluminescence in potential ErQ$_3$ phosphor for organic LEDs

V. Kh. Kudoyarova^abc, A. V. Medvedev^abc, N. P. Kuzmina^abc, A. V. Ankudinov^abc, S. A. Kozyukhin<sup>abc

a</sup> Ioffe Institute, St. Petersburg
^b Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow
^c Lomonosov Moscow State University

Abstract: The photoluminescence (PL) of films based on ErQ$_3$ compound have been studied using samples manufactured by two methods. The maximum intensity of room-temperature PL due to ErEr$^{+3}$ ions was observed for the films prepared by thermal deposition in vacuum. This result is explained both by the higher concentration of optically active ErEr$^{+3}$ ions and by a more homogeneous composition and more uniform structure of the thermodeposited films as compared to those applied from solution.

Received: 13.02.2011

 English version: Technical Physics Letters, 2011, 37:8, 714–717

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