| Authors | سعید صفا- سادات مختاری- علی خیاطیان- روح ا.. عظیمی راد |
|---|---|
| Journal | Optics Communications |
| Paper Type | Full Paper |
| Published At | 2017-12-12 |
| Journal Grade | Scientific - research |
| Journal Type | Electronic |
| Journal Country | Netherlands |
Abstract
Encapsulated ZnO nanorods (NRs) with different Cr concentration (0–4.5 at.%) were prepared in two different
steps. First, ZnO NRs were grown by hydrothermal method. Then, they were encapsulated by dip coating
method. The prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy,
and ultraviolet (UV)-visible spectrophotometer analyses. XRD analysis proved that Cr incorporated into the ZnO
structure successfully. Based on optical analysis, band gap changes in the range of 2.74–3.84 eV. Finally, UV
responses of all samples were deeply investigated. It revealed 0.5 at.% Cr doped sample had the most photocurrent (0.75 mA) and photoresponsivity (0.8 A/W) of all which were about three times greater than photocurrent and photoresponsivity of the undoped sample.