Bright blue electroluminescence of diamond/CeF3 composite films. (November 2016)

• Record Type: Journal Article
• Authors: Chen, Hai-Jiang; Wang, Xiao-Ping; Wang, Li-Jun; Ke, Xiao-Long; Ning, Ren-Min; Song, Ming-Li; Liu, Ling-Hong
• Is Part Of: Carbon. Volume 109(2016)
• Page Start: 192
• Page End: 195
• Publication Date: 2016-11
• Subjects: Carbon -- Periodicals; Carbone -- Périodiques; Koolstof; Toepassingen; Electronic journals; 546.681
• DOI: 10.1016/j.carbon.2016.07.061
• Languages: English
• ISSNs: 0008-6223

Abstract

Abstract: Diamond/CeF3 composite film (DCCF) electroluminescence devices was fabricated on highly doping n-type silicon substrates by using plasma chemical vapor deposition techniques and vacuum electron beam evaporation techniques. The films were characterized by field emission scanning electron microscopy (FE-SEM), Energy dispersive spectrum (EDS), X-ray diffraction (XRD) and electroluminescence (EL) spectrum. The EL spectrum of DCCFs shows that a strong broad peaks are located at 440 nm, and its EL brightness of the device can reach 10 cd/m 2 at a forward applied voltage of 120 V. The blue light emitting peak is assigned to the transitions from the excited 5d state to 4f ( 2 F5/2 ) and 4f ( 2 F7/2 ) states of Ce 3+ ions, respectively.