The Morphology and Optical Properties of ZnO Nanorods Grown on MoS2 Thin Films at Various Thicknesses Using a Chemical Bath Deposition Method
| Autor: | Kieu Loan Phan Thi, Nguyen Huu Ke, Le Vu Tuan Hung, Lam Thanh Nguyen, Dao Anh Tuan, Thi Quynh Anh Le |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Photoluminescence
Materials science Scanning electron microscope 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Electronic Optical and Magnetic Materials Crystallinity symbols.namesake Chemical engineering Materials Chemistry symbols Nanorod Electrical and Electronic Engineering Thin film 0210 nano-technology Raman spectroscopy Wurtzite crystal structure Chemical bath deposition |
| Zdroj: | Journal of Electronic Materials. 47:6302-6310 |
| ISSN: | 1543-186X 0361-5235 |
| DOI: | 10.1007/s11664-018-6536-7 |
| Popis: | MoS2 thin films and ZnO nanorods were prepared by chemical bath deposition on glass substrates to form ZnO nanorod/MoS2 thin film heterostructures. The morphological, structural and optical properties of ZnO nanorods grown on MoS2 thin films were investigated through scanning electron microscopy (SEM), x-ray diffraction (XRD), Raman spectroscopy, ultraviolet–visible (UV–Vis) and photoluminescence spectroscopy, respectively. The SEM images and XRD patterns revealed that ZnO nanorods exhibited a hexagonal wurtzite structure with preferred c-axis orientation, a good crystallinity and covered the entire surface of MoS2 thin films. Furthermore, ZnO nanorods were successfully grown on MoS2 thin films without affecting the crystal structure of 2H-MoS2 which was demonstrated through two typical peaks of 380 cm−1 and 410 cm−1 in Raman spectra. Notably, the combination of ZnO nanorods and MoS2 thin films (ZnO nanorod/MoS2 thin film heterostructures) revealed a significant increase of absorption in the wavelength range of 350–800 nm characterized by UV–Vis spectroscopy. In addition, ZnO nanorod/MoS2 thin film heterostructures also showed a significant decrease of the intensity of photoluminescence emission. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink