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19.4: Luminescence Characteristics of YAl 3 B 4 O 12 : Tb 3+ Phosphor for PDP Application
Author(s) -
Kim Ji Hyun,
Kim MinJu,
Song JayHyok,
Choi IckKyu,
Park DoHyung,
You YongChul,
You YongChan,
Kim YunChang,
Zang DongSik
Publication year - 2009
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.3256756
Subject(s) - phosphor , ion , analytical chemistry (journal) , luminescence , photoluminescence , yttrium , materials science , chemistry , terbium , saturation (graph theory) , ultraviolet , doping , optoelectronics , oxide , metallurgy , organic chemistry , chromatography , mathematics , combinatorics
Abstract Photoluminescence(PL) characteristics under vacuum ultraviolet(VUV) region of Tb 3+ doped yttrium aluminium borate phosphor were investigated for Plasma Display panel(PDP) application. The single‐phase green emitting Y 1−x Tb x Al 3 B 4 O 12 (YAB: Tb 3+ ) powder phosphors were prepared with various Tb 3+ ion concentration. As a result, the intensity around 147nm of excitation spectrum in YAB: Tb 3+ decrease slightly with increase of Tb 3+ ion concentration due to concentration quenching behavior, but on the contrary, the intensity of 172nm increase with increase of Tb 3+ ion concentration due to attributing the 4f 8 → 4f 7 5d 1 transition of Tb 3+ [1]. However in the result of gas discharge chamber test which has the same gas mixture as real PDP, relative PL luminance of YAB: Tb 3+ increase with increase of Tb 3+ ion concentration due to effect of increasing absorption at 172nm. Besides, YAB: Tb 3+ with high Tb 3+ ion concentration (x=0.7) has higher VUV luminance saturation property than low Tb 3+ ion concentration (x=0.4) since high Tb 3+ ion concentration phosphor has more activators than lower one which can react with VUV photon in unit volume.