Luminescent Characteristics of Undoped and Er-Doped ZnO Thin Films

Yukari Ishikawa; Junichi Niitsuma; Shigeru Tanaka; Dai Nezaki; Mitsuhiro Okamoto; Masashi Yamashita; Takashi Sekiguchi; Noriyoshi Shibata

doi:10.4028/www.scientific.net/KEM.301.189

Paper Titles

Substrate Purity Dependence of Heating Characteristics for Ca-Doped-LaCrO₃ Thin Film Electric Heaters
p.171

Synthesis and Luminescence Properties of Chalcopyrite-Type CuAlS₂
p.177

Effect of Growth Conditions on the Cathodoluminescence of β-Ga₂O₃ Crystals Grown by Electric Current Heating Method
p.181

Photoluminescence Spectra of ZnO Films Doped with Li and Cl Atoms
p.185

Luminescent Characteristics of Undoped and Er-Doped ZnO Thin Films
p.189

Preparation and Its Photovoltaic Effect of Ferroelectric Film
p.193

Enhancement of Luminescent Properties of Sol-Gel-Derived BaTiO₃: Pr
p.197

Fabrication and Optical Properties of PLZT Photonic Crystals Using a Sol-Gel Process
p.201

Excitation of X-Rays Using Polarized LiNbO₃ Single Crystal
p.205

HomeKey Engineering MaterialsKey Engineering Materials Vol. 301Luminescent Characteristics of Undoped and...

Luminescent Characteristics of Undoped and Er-Doped ZnO Thin Films

Abstract:

In order to clarify the fundamental luminescent mechanism of undoped and Er-doped ZnO thin films synthesized by sputtering method, cathodoluminescence (CL) from the samples formed on several kinds of substrate were measured. There was no explicit peak identified with luminescence from ZnO crystal defects in undoped sample, on the contrary, three sharp luminescent peaks were observed in the case of Er-doped ZnO film due to the internal transition of the additive Er ions in the CL spectrum. The mechanism was investigated in comparison with photoluminescence (PL).