title: Fabrication of highly efficient full-color electroluminescent device composed of nanocrystalline silicon.
abstract: We fabricated a highly-efficient full-color electroluminescent device composed of nanocrystalline silicon (nc-Si). High luminance red, green and blue luminescence from the device was achieved by using hydrofluoric acid solution and oxidation techniques, because these techniques lead to reduction of both nc-Si size and P(b)-center on the surface, which is related closely to luminescent color and luminance, respectively. Moreover, direct current (DC) operating voltage on red/green/blue light emission of the device was realized at a relative low value below 10.0 V by controlling the thickness of the oxidized layer on the nc-Si surface. These results are a strong indication that the device developed in this study can be adapted to future flat panel display and illumination fields.
authors.affiliation: Department of Electronic and Computer Engineering, Tokyo Denki University, Ishizaka, Hatoyama, Hikigun, Saitama, 350-0394, Japan.
authors.forename: Keisuke
authors.initials: K
authors.lastname: Sato
authors.forename: Kenji
authors.initials: K
authors.lastname: Hirakuri
authors.forename: Mitsuo
authors.initials: M
authors.lastname: Iwase
authors.forename: Tomio
authors.initials: T
authors.lastname: Izumi
mesh_terms: D003116:Color; D003460:Crystallization; D004560:Electricity; D004566:Electrodes; D006358:Hot Temperature; D006858:Hydrofluoric Acid / Q000494:pharmacology; D008027:Light; D049449:Luminescence; D036103:Nanotechnology / Q000379:methods*; D010084:Oxidation-Reduction; D012825:Silicon / Q000737:chemistry*; D013499:Surface Properties / Q000187:drug effects
chemical_list: D006858:Hydrofluoric Acid; D012825:Silicon