申请日期 | 2025-07-12 | 申请号 | US16140600 |
公开(公告)号 | US20190097101A1 | 公开(公告)日 | 2019-03-28 |
公开国别 | US | 申请人省市代码 | 全国 |
申请人 | James Anthony Dorman | ||
简介 | The absorbance or emission wavelength of composite materials comprising a transition metal doped shell disposed over a rare earth doped core and a functionalizable group on the surface of the transition metal doped shell can change upon subjection to a carboxylic acid. This method of changing the absorbance or emission wavelength of a composite material can be used to identify counterfeit currency using an ink comprising a composite material. |
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