Ultraviolet C upconversion fluorescence of trivalent erbium in BaGd2ZnO5 phosphor excited by a visible commercial light-emitting diode.
Ultraviolet C upconversion fluorescence of trivalent erbium in BaGd2ZnO5 phosphor excited by a visible commercial light-emitting diode.
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DOI：
10.1364/ol.39.002000
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发表时间：
2014-04
期刊：
影响因子：
3.6
通讯作者：
Yanmin Yang;Chao Mi;Xian-yuan Su;F. Jiao;Linlin Liu;Jiao Zhang;Fang Yu;Xiaodong Li;Yanzhou Liu;Y. Mai
中科院分区：
文献类型：
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作者：
Yanmin Yang;Chao Mi;Xian-yuan Su;F. Jiao;Linlin Liu;Jiao Zhang;Fang Yu;Xiaodong Li;Yanzhou Liu;Y. Mai
在532 nm固体激光激发下，掺Er ~（3+）的BaGd_2 ZnO_5荧光粉在217、254、278、296、314、348、374和394 nm处获得了多个紫外（UV）发射带，确定了这些发射峰分别来自4D（1/2）、4D（7/2）、2 H（9/2）、4D（1/2）和3D（7/2）的高能态，2P（1/2）、2P（3/2）、4G（7/2）、4G（11/2）、4H（9/2）。当样品被商业绿色（529 nm）和蓝色（460 nm）LED激发时，可以观察到UVC区的一些UV发射带。鉴于LED体积小、驱动电压低、价格便宜等特点，可见光LED激发的紫外上转换荧光粉BaGd 2 ZnO 5：Er 3+在环境科学中具有潜在的应用前景。
Multiple ultraviolet (UV) emission bands have been obtained in Er3+ doped BaGd2ZnO5 phosphor under the excitation of a 532 nm solid-state laser, and the emission peaks at 217, 254, 278, 296, 314, 348, 374 and 394 nm were determined to stem from the high-energy states 4D(1/2), 4D(7/2), 2H(9/2), 2P(1/2), 2P(3/2), 4G(7/2), 4G(11/2), 4H(9/2) of trivalent erbium, respectively. Some UV emission bands in the UVC region can be observed when the sample was excited by commercial green (529 nm) and blue (460 nm) LED. In view of the small size, low-drive voltage and price of LED, UVC upconversion phosphor BaGd2ZnO5:Er3+ excited by visible LED has potential application in environmental sciences.