Ultraviolet-blue electroluminescence from Gd3Ga5O12 : Ag

作者:Xu XL*; Xu Z; Hou YB; Su YM; Xu XR; Wang XW; Tong WS
来源:Applied Physics Letters, 2000, 77(5): 672-674.
DOI:10.1063/1.127081

摘要

UV-blue light was obtained from a thin-film electroluminescence device using Gd3Ga5O12:Ag as a light-emitting layer, which was deposited by using electron-beam evaporation. The crystal composition and structure of Gd3Ga5O12:Ag were studied by x-ray powder diffraction, The Gd3Ga5O12:Ag has a photoluminescence emission which peaked at around 397 and 467 nm, which were attributed to the oxide vacancies and Ag+, respectively. The brightness of 32 cd/m(2) was obtained when an alternating voltage of 130 V at 1 kHz was applied.