title: Blue electroluminescence from Sb-ZnO/Cd-ZnO/Ga-ZnO heterojunction diode fabricated by dual ion beam sputtering.
abstract: p-type Sb-doped ZnO/i-CdZnO/n-type Ga-doped ZnO was grown by dual ion beam sputtering deposition system. Current-voltage characteristics of the heterojunction showed a diode-like rectifying behavior with a turn-on voltage of ~5 V. The diode yielded blue electroluminescence emissions at around 446 nm in forward biased condition at room temperature. The emission intensity increased with the increase of the injection current. A red shifting of the emission peak position was observed with the increment of ambient temperature, indicating a change of band gap of the CdZnO active layer with temperature in low-temperature measurement.
authors.forename: Sushil Kumar
authors.initials: SK
authors.lastname: Pandey
authors.forename: Vishnu
authors.initials: V
authors.lastname: Awasthi
authors.forename: Shruti
authors.initials: S
authors.lastname: Verma
authors.forename: Shaibal
authors.initials: S
authors.lastname: Mukherjee