A Study of Luminescence Wavelength Control on Room Temperature Luminescent Materials by μm-Region Analysis

μm区分析室温发光材料发光波长控制的研究

• 批准号: 11650695
• 负责人: TANAKA Katsumi
• 金额: $ 2.37万
• 依托单位: The University of Electro-Communications
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11650695/
• 关键词: luminescence; pulsed laser deposition (PLD); rare-earth ion; thin film; tungsten oxide; electron probe micro analysis (EPMA); photoelectron spectroscopy (XPS); scintillator; カソードルミネセンス; パルスレーザー堆積法(PLD); 単結晶; シンチレーター; 可視光発光材料; 光電子分光; 電子線プローブ微

Multi-channel photo-detector was purchased to obtain in-situ photo-luminescence ( PL) spectra activated with electron and X-ray. The μm-region cathode-luminescence was applicable in addition to μm-region atomic ratio analysis. Results are (1) Luminescence spectra of Sm, Eu and Gd ion-doped CdWO_4 single crystals were studied in association with XPS analysis. Three PL components were convoluted. The PL component at 2.22 eV was selectively observed in cathode-luminescence on Sm-CdWO_4. The reason is explained such that Sm^<3+> ions are displaced to Cd^<2+> and disturb CdWO_4 lattice to generate [WO_5]^<4-> which is responsible for the PL component. (2) Sm-ion doped CdW0_4 thin films were prepared with pulsed laser deposition using SmsOa, GdO and WOs mixed odide targets. The PL component at 2.22 eV was enhanced in X-ray PL on PLD thin films in spite of no change in X-ray activated PL on single crystals. (3) CaWO_4 thin films were prepared with PLD using CaO and WO_3 mixed oxide targets. On the films μm-region cathode-luminescence spectra were recorded to elucidate film quality. (4) Scientific papers on Si clusters and TiO_2 were published. Luminescence properties oh these materials are under preparation for publication.

购买了多通道光探测器，以获得用电子和X射线激活的原子亮度（PL）光谱。 SM，欧盟和GD离子CDWO_4与XPS分析相关联。 >和干扰CDWO_4晶格生成[WO_5]（2）Sm-ion掺杂的CDW0_4薄膜被放置在LASE LASE LASE LASE LASE LABAD LABAD LABASE LABAD LABAS LABAS LASED LAS LASED LD薄膜，尽管X射线激活板在单晶上发生了变化）使用CAO和WO_3混合氧化物的薄膜薄膜。

项目成果

K.Tanalea: "Cathode-luminescence of Samarium, Europium and Gadrinium ion doped seintillator CdWO_4 single crystals studied with X-ray photoelectron spectroscopy"Journal of Applied Physics. (in press). (2001)

K.Tanalea：“用X射线光电子能谱研究钐、铕和钆离子掺杂的CdWO_4单晶的阴极发光”应用物理学杂志。

K. Tanaka, T. Sakamoto, M. tohara, C-K. Choo, R. Nakata: "Osygen containing silicon clusters on Teflon and their work functions studied with X-ray photoelectron spectroscopy and ultraviolet photoelectron spectgroscopy."Applied Surface Science. Vol.148. 21

K. Tanaka、T. Sakamoto、M. tohara、C-K。

C-K.Choo,T.Sakamoto,K.Tanaka,R.Nakata: "Characterization of nitrogen terminated silicon nanoparticles on AFI zeolite with X-ray and ultraviolet photoelectron spectroscopies"Applied Surface Science. Vol.148. 116-125 (1999)

C-K.Choo、T.Sakamoto、K.Tanaka、R.Nakata：“利用 X 射线和紫外光电子能谱表征 AFI 沸石上的氮封端硅纳米粒子”应用表面科学。

K.Tanaka, K.Fukui, K.Ohga, C-K.Choo: "CaWO_4 thin films synthesized by pulsed laser deposition"Journal of Vacuum Science Technology. (印刷中). (2002)

K.Tanaka、K.Fukui、K.Ohga、C-K.Choo：“脉冲激光沉积合成的 CaWO_4 薄膜”真空科学技术杂志（2002 年出版）。

K.Tanaka, K.Ohga, C-K.Choo, R.Nakata: "Son-doped CdWO_4 thin films synthesized by pulsed laser deperition"Jounal of Applied Phyoia. 90巻10号. 5369-5375 (2001)

K. Tanaka、K. Ohga、C-K. Choo、R. Nakata：“通过脉冲激光烧蚀合成的 Son 掺杂 CdWO_4 薄膜”，《应用物理杂志》，第 90 卷，第 10 期。5369-5375 (2001)