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首页> 外文期刊>電子情報通信学会技術研究報告. 電子ディスプレイ. Electronic Information Display >Characterization of blue emitting CaAl{sub}2O{sub}4:Eu{sup}(2+) phosphor thin films prepared using pulsed laser deposition (PLD) technique
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Characterization of blue emitting CaAl{sub}2O{sub}4:Eu{sup}(2+) phosphor thin films prepared using pulsed laser deposition (PLD) technique

机译：使用脉冲激光沉积（PLD）技术制备的蓝色发射CaAL {Sub} 4：eu {sup}（2+）磷光体薄膜的表征

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摘要

Blue emitting Eu{sup}(2+) doped CaAl{sub}2O{sub}4 phosphor thin films were prepared by using pulsed laser deposition technique and post-annealing. As-grown films were amorphos and showed weak red photoluminescence (PL) due to the trivalent Eu ion. By annealing in reducing atmosphere (N{sub}2/H{sub}2:2% mixed gas) at 950 °C for 2 hours, the film was crystalized and showed the PL emission band peaking at about 447nm, which is originated from the 4f{sup}6 5d to 4f{sup}7 transition of the divalent Eu ion. Since the PL intensity and the crystallinity of the CaAl{sub}2O{sub}4:Eu{sup}(2+) thin films varied with the deposition conditions, the deposition parameters of PLD method for the CaAl{sub}2O{sub}4:Eu{sup}(2+) thin films were examined.
机译：通过使用脉冲激光沉积技术和退火制备蓝色发射欧盟{Sup}（2+）掺杂CaAL {Sub} 2O {Sub} 4磷光体薄膜。 由于三价EU离子，薄膜是氨基族，并且显示出弱红色光致发光（PL）。 通过在950℃下减少气氛（N {次} 2 / h {亚} 2：2％混合气体）2小时来退火，薄膜结晶并显示PL发射带在约447nm处达到峰值，源自 第4F {sup} 6 5d至4f {sup} 7转换欧盟离子的转变。 由于PL强度和CAAL {SUB} 2O {SUB} 4的结晶度：eu {sup}（2+）薄膜随着沉积条件而变化，CAAL {sub} 2o {sub的PLD方法的沉积参数 } 4：检查欧盟{sup}（2+）薄膜。

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