Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5442985 | Optical Materials | 2017 | 6 Pages |
Abstract
ZnO microrods are fabricated by a simple hydrothermal growth route using zinc acetate dihydrate [Zn(CH3COO)2·2H2O] and hexamethylenetetramine [(CH2)6N4] aqueous solutions. The as-prepared microrods exhibit uniform dimensions, well-faceted surfaces, and hexagonal crystal structure. The microrods also have an intense ultraviolet (UV) emission at 392 nm with an average lifetime of 80 ps. No peaks are observed at the visible wavelengths that can be attributed to defect-related emissions. With excellent structural and optical properties and with loose adhesion to their substrates, the ZnO microrods can be isolated, harvested, and manipulated and can be integrated as building blocks of a microstructured scintillator screen. The proposed scintillator screen possibly offers efficient and precise detection with high resolution. Hydrothermal-grown ZnO microrods then hold a promise towards radiation detector innovation and integrated optoelectronic microsystems.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Melvin John F. Empizo, Alexandra B. Santos-Putungan, Kohei Yamanoi, Hernanie T. Jr., Eloise P. Anguluan, Kazuyuki Mori, Ren Arita, Yuki Minami, Mui Viet Luong, Toshihiko Shimizu, Elmer S. Estacio, Armando S. Somintac, Arnel A. Salvador,