Method of indirect emission by nano-materials

US8173974B2 · kind B2 · utility

Assignee

• Shanghai Keyan Phosphor Technology Co., Ltd. · CN

Inventors

• Yan Zheng · Livingston, US
• Jingyu Bian · Shanghai, CN
• Shufan Geng · Shanghai, CN
• Ruifu Yang · Beijing, CN
• Lei Zhou · Tianjin, CN
• Huijie Huang · Shanghai, CN
• Youbao Zhang · Shanghai, CN
• Lihua Huang · Tangxia, CN

Key dates

• Filing date: Aug 27, 2010
• Grant date: May 8, 2012
• Expiry date: Jan 18, 2031

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2201/06193
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method of indirect emission by nano-materials includes providing an infrared up-conversion phosphor 1 (weight ratio) and a long-wave ultraviolet phosphor 0.01-10 (weight ratio); treating both surfaces of the infrared up-conversion phosphor and the long-wave ultraviolet phosphor; mixing the infrared up-conversion phosphor and the long-wave ultraviolet phosphor; exciting the infrared up-conversion phosphor by a near-infrared laser with a wavelength of 980 mn to emit blue light as a secondary excitation lightsource; exciting the long-wave ultraviolet phosphor by the blue light to emit a visible light. Biological reactions can be conveniently detected by detecting the visible light.