Optical properties of the ZnO nanotubes synthesized via vapor phase growth

Abstract

A large quantity of nanosized ZnO tubular structures was prepared using a very simple thermal evaporation of mixed Zn–ZnO powders under a wet oxidation condition. The ZnO nanotubes have a hollow core with crystalline wall of 8–20 nm in thickness. Optical properties of ZnO nanotubes were studied at room temperature. Raman peaks arising from the ZnO nanotubes were analyzed, which correspond well to that of the bulk ZnO sample. The photoluminescence measurements of ZnO nanotubes revealed an intensive UV peak at 377 nm corresponding to the free exciton emission, and a broad peak at about 500 nm arising from defect-related emission.

Production and recovery of defects in phosphorus-implanted ZnO

“…32 and 33) or the LO phonon of E 1 . 31,34,35 However, this peak might also be a defect-induced mode, and we will later discuss it in more details.…”

Investigation of physical properties of screen printed nanosized ZnO films for optoelectronic applications

“…[13][14][15][16][17][18]. Screen printing, an eco-friendly, economic, suitable for large area deposition technique has been generally used by industries for rapid deposition of thick films over large areas [18][19][20].…”

Growth and luminescence properties of micro- and nanotubes in sintered tin oxide

“…ZnO has attracted much attention, and the growth of different one-dimensional nanostructures of this semiconductor has been reported in the past years. [1][2][3][4][5] Low dimensional nanostructures of other semiconductor oxides with gas sensing applications, such as Ga 2 O 3 , TiO 2 , and SnO 2 , have been also developed. The high surface-to-volume ratio of the nanostructures provides a high sensitivity to the interaction with gases.…”