Highly Flexible Infrared Emitter with Spatially Controlled Emissivity for Optical Security (Adv. Mater. Technol. 4/2023). Issue 4 (24th February 2023)

• Record Type: Journal Article
• Authors: Kang, Dongkyun; Kim, Yeongseon; Kim, Chanhee; Lee, Myeongkyu
• Is Part Of: Advanced materials technologies. Volume 8:Issue 4(2023)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2023-02-24
• Subjects: anti‐forgery -- flexible emitters -- Ge 2Sb 2Te 5 -- lasers -- optical security; Materials science -- Periodicals; Technological innovations -- Periodicals; Materials science; Technological innovations; Periodicals; 620.1105
• DOI: 10.1002/admt.202370016
• Languages: English
• ISSNs: 2365-709X

Abstract

Abstract : Infrared Emitters In article number 2200808, Myeongkyu Lee and co‐workers present a Ge2 Sb2 Te5 (GST)‐ based infrared emitter that is fabricated on a flexible substrate such as plastic and paper, and its emissivity is space‐selectively controlled using a spatially modulated pulsed laser beam. The multispectral properties of GST enable different visible and thermal images to be simultaneously printed in the same area of the emitter. This provides a promising feature for optical security, including anti‐forgery.