Influence of copper doping in nanostructured ZnO thin films by spin coating
- Resource Type
- Conference
- Authors
- Yongvanich, Niti; Thongkaew, Krittayot; Yuanlae, Nongnapat; Sae-ung, Supansa; Suwanchawalit, Cheewita
- Source
- 2017 IEEE 12th Nanotechnology Materials and Devices Conference (NMDC) Nanotechnology Materials and Devices Conference (NMDC), 2017 IEEE 12th. :139-140 Oct, 2017
- Subject
- Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Engineering Profession
Fields, Waves and Electromagnetics
General Topics for Engineers
Films
Zinc oxide
Doping
II-VI semiconductor materials
Raman scattering
Oxidation
Photonic band gap
- Language
The Cu-doped ZnO (Cu: ZnO) films were prepared by spin-coating with emphasis on a small concentration range (0–5 at-%). Various characterization techniques were employed to examine the correlation between microstructure and properties. X-ray diffraction showed reductions in both cell dimensions and crystallite sizes; the latter was also confirmed by Field-effect scanning electron microscopy. The oxidation state of Cu was studied by X-ray photoelectron spectroscopy to be predominantly 2+. Successful doping was further shed to light by Raman spectroscopy, resulting in a decrease in the band gap which facilitated enhancement in dye degradation. As a result, this Cu: ZnO system holds great potential for possible utilization in the treatment of waste water, especially under normal light radiation.