Low-temperature synthesis and photoluminescence of ZnO nanostructures by a facile hydrothermal process |
| |
| Authors: | PG Li SL Wang WH Tang |
| |
| Affiliation: | 1. Porto Conte Ricerche, Porto Conte, Tramariglio, Alghero, Italy;2. Dipartimento di Scienze Chimiche e Geologiche, Università di Cagliari, Complesso Universitario, S.S. 554, I-09042 Monserrato, Cagliari, Italy;3. Dipartimento di Scienze, Università Roma Tre, Via della Vasca Navale 84, st. 42, I-00146 Roma, Italy;4. Dipartimento di Fisica, Università di Cagliari, Complesso Universitario, S.S. 554, I-09042 Monserrato, Cagliari, Italy;5. INSTM, Cagliari Unit, Italy;1. Institute for Testing of Materials IMS, Vojvode Mi?i?a Bl. 43, 11000 Belgrade, Serbia;2. Institute of General and Physical Chemistry, University of Belgrade, Studentski Trg 12-16, 11000 Belgrade, Serbia;3. Institute for Technology of Nuclear and Other Mineral Raw Materials, Franchet d’Esperey 86, 11000 Belgrade, Serbia |
| |
| Abstract: | We reported a facile route to large-scale ZnO nanostructures by a poly (styrene-alt-maleic acid sodium) (PSMA)-assisted hydrothermal process. Various nanostructures including nanowires, nanobelts and nanorod arrays were fabricated depending on the experimental conditions. The structural studies reveal that all the nanostructures are single crystal with hexagonal phase and preferentially grow along 0 0 0 1]. The organic additive PSMA offers a spatial template for the one-dimensional (1D) growth of ZnO. The photoluminescence (PL) spectra of these nanostructures exhibit coexistence properties of ultraviolet (UV) and green emission. The nanorod arrays and nanobelts exhibit the strongest UV performance and green emission, respectively. We deduce that quantity of surface defects should be responsible for the difference in PL properties of these nanostructures. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
