Optical properties of hydrothermal-method-grown ZnO crystal as EUV laser diagnostics material

Yamanoi K; Shimizu T; Furukawa Y; Cadatal-Raduban M; Nakazato T; Sakai K; Tsuboi M; Nishi R; Sarukura N; Tanaka M; Nishikino M; Yamatani H; Nagashima K; Kimura T; Fukuda T; Nagasono M; Togashi T; Higashiya A; Yabashi M; Ishikawa T; Ohashi H; Kimura H

Journal of Crystal Growth, Vol.362, 264-267, 2013

DOI10.1016/j.jcrysgro.2012.01.008 Export Citation

Optical properties of hydrothermal-method-grown ZnO crystal as EUV laser diagnostics material

Yamanoi K, Shimizu T, Furukawa Y, Cadatal-Raduban M, Nakazato T, Sakai K, Tsuboi M, Nishi R, Sarukura N, Tanaka M, Nishikino M, Yamatani H, Nagashima K, Kimura T, Fukuda T, Nagasono M, Togashi T, Higashiya A, Yabashi M, Ishikawa T, Ohashi H, Kimura H

Photoluminescence properties of hydrothermal method-grown zinc oxide (ZnO) are evaluated in the extreme ultraviolet (EUV) region. The prominent fluorescence peak observed at 380 nm is characterized by a double exponential decay profile, where the 1.6 ns fast decay component is attributed to free excitons while the 15 ns slow decay component is assigned to trapped carriers. The response time of ZnO is improved to 70 ps by intentional iron (Fe) ion doping accomplished through the removal of the platinum lining in the growth chamber. This response time-improved ZnO will have promising applications in EUV lithography and X-ray free electron laser (XFEL) research. (C) 2012 Elsevier B.V. All rights reserved.

Keywords:Characterization;Hydrothermal crystal growth;Oxides