Premium
Light Emission of a CdS(Cu)/CdS Thin‐Film Diode
Author(s) -
Abe T.,
Sato J.,
Ohashi S.,
Watanabe M.,
Kashiwaba Y.
Publication year - 2002
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(200201)229:2<1015::aid-pssb1015>3.0.co;2-3
Subject(s) - homojunction , materials science , diode , optoelectronics , green light , rectification , light emitting diode , doping , thin film , layer (electronics) , vacuum deposition , blue light , optics , nanotechnology , electrical engineering , physics , voltage , engineering
Thin‐film diodes composed of Cu‐doped p‐type CdS (CdS(Cu)) and non‐doped n‐type CdS films (CdS(Cu)/CdS diode) were fabricated by an all‐vacuum deposition process. The diodes showed good rectification characteristics and light emission of blue‐green, green and red colors under a forward current at 77 K. The colors of light were changed by the Cu concentration, thickness of the Cu‐diffused CdS layer and current density. It is thought that light emission of the diode was generated by a p‐CdS(Cu)/n‐CdS homojunction.