Abstract
An optically transparent p-n heterojunction device consisting of p-NiO and n-ZnO thin films was fabricated by r.f. sputtering method. The structural and optical properties of the p-NiO/n-ZnO heterojunction were characterized by X-ray diffraction (XRD), UV-visible spectroscopy, Hall effect measurement, and J-V photocurrent measurements. The XRD shows that ZnO films are highly crystalline in nature with preferred orientation along the (0 0 0 2) direction. The p-NiO/n-ZnO heterojunction device has an average transmittance of over 80% in the visible region. The current-voltage curve of the heterojunction demonstrates obvious rectifying diode behavior in a dark environment. The lowest leakage current is 6.64 × 10-8 A/cm2 for the p-NiO/n-ZnO heterojunction device.
| Original language | English |
|---|---|
| Pages (from-to) | 37-41 |
| Number of pages | 5 |
| Journal | Solid-State Electronics |
| Volume | 63 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2011 Sept |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering
- Materials Chemistry