Red Electroluminescence of Mn-doped CuAlS2 Powder and Single Crystal
- 1 June 1998
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 37 (6R) , 3350-3356
- https://doi.org/10.1143/jjap.37.3350
Abstract
In this paper, the first application of ternary compounds of Mn-doped CuAlS2 to a new red powder electroluminescent (PEL) phosphor has been reported. The chromaticity of the emission is a high-purity red very close to that of the red-CRT phosphor. The luminance–voltage (L–V), current–voltage (I–V), and luminance–current (L–I) curves of the single crystal reveal that the excitation of red electroluminescence (EL) is caused by hot holes. The EL decay mechanism is found to be dominated by Mn–Mn pair relaxation. The DC–EL of the PEL device using Mn-doped CuAlS2 was brighter than the AC–EL. This superior DC–EL performance is explained by the emitting position in the phosphor-binder layer.Keywords
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