Direct writing of Cu-based micro-temperature detectors using femtosecond laser reduction of CuO nanoparticles. (28th January 2016)

• Record Type: Journal Article
• Authors: Mizoshiri, Mizue; Arakane, Shun; Sakurai, Junpei; Hata, Seiichi
• Is Part Of: Applied physics express. Volume 9:Number 3(2016:Mar.)
• Publication Date: 2016-01-28
• Subjects: Physics -- Periodicals; Technology -- Periodicals; 621.05
• DOI: 10.7567/APEX.9.036701
• Languages: English
• ISSNs: 1882-0778

Abstract

Abstract: Cu-based micro-temperature detectors were fabricated using femtosecond laser reduction of CuO nanoparticles. Cu-based microstructures were directly created by laser scanning on a CuO nanoparticle solution film. Cu-rich and Cu2 O-rich microstructures were selectively formed to electrically connect two Cu thin-film electrodes for use in temperature detectors. Cu-rich and Cu2 O-rich micro-temperature detectors were fabricated at scanning speeds of 500 and 1000 µm/s, respectively, at a pulse energy of 1.2 nJ. The temperature coefficient of resistance values of the Cu-rich and Cu2 O-rich microstructures were positive and negative, respectively; these temperature behaviors are typical of metal and semiconductor materials, respectively.