发明授权
- 专利标题: High-luminosity stress-stimulated luminescent material, manufacturing method thereof, and use thereof
- 专利标题(中): 高亮度应力刺激发光材料及其制造方法及其应用
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申请号: US11547660申请日: 2005-04-08
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公开(公告)号: US08128839B2公开(公告)日: 2012-03-06
- 发明人: Chao-Nan Xu
- 申请人: Chao-Nan Xu
- 申请人地址: JP Tokyo
- 专利权人: National Institute of Advanced Industrial Science & Technology
- 当前专利权人: National Institute of Advanced Industrial Science & Technology
- 当前专利权人地址: JP Tokyo
- 代理机构: Nixon & Vanderhye PC
- 优先权: JP2004-116250 20040409
- 国际申请: PCT/JP2005/006971 WO 20050408
- 国际公布: WO2005/097946 WO 20051020
- 主分类号: C09K11/64
- IPC分类号: C09K11/64
摘要:
The present invention provide a high-luminosity stress-stimulated luminescent material which emits visible light even in daylight, a manufacturing method thereof, and a typical example of the use thereof. The stress-stimulated luminescent material of the present invention satisfies conditions for light emission by at least one of: a luminescence mechanism using static electricity caused by friction; a luminescence mechanism using micro plasma caused by friction; a luminescence mechanism using a piezoelectric effect caused by strain; a luminescence mechanism using lattice defect; and a luminescence mechanism using thermal generation. For example, in case where a base material made of at least one type of aluminate is includes as the stress-stimulated luminescent material, the base material includes a crystal structure with spontaneous polarization, e.g. α-SrAl2O4, in order to realize the luminescence mechanism using the piezoelectric effect caused by strain.
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