"

Cookies ussage consent

I agree.

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

A study of structural, magnetic and optical properties of Zn1xCrxO

SHI FENG NIU1,* , JIA HONG ZHENG2,3

Affiliation

  1. College Key laboratory automotive transportaion safety technology ministry of communication, chang’an university, xi’an 710064, shaanxi, P. R. C hina
  2. College of Materials Science and Engineering, Nanling campus, Jilin University, Changchun, 130022, Jilin, P. R. China
  3. Key Laboratory of Preparation and Applications of Environmental Friendly Materials, Jilin Normal University, Chinese Ministry of Education, Siping 136000, China

Abstract

Cr-doped ZnO powders were synthesized successfully with different doping concentration by sol–gel method. The structural, optical and magnetic properties of the samples were investigated by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), photoluminescence (PL) and vibrating sample magnetometer (VSM). XRD and XPS indicate that the Cr ions are at least partially substitutionally incorporated into the crystal lattice of ZnO. The saturation doping concentration of Cr in ZnO lattice is estimated to be less than 7.0 at %. Magnetic measurements indicated that the Cr doped ZnO samples show ferromagnetic behavior at room temperature and the ferro magnetism decreases with increasing Cr doping concentration. PL measurements sho wed that Zn1xCrxO powders with the increased of Cr concentration exhibited obvious blue shift and the intensity of the green emission band is enhanced..

Keywords

Diluted magnetic semiconductors, Ferrom agnetism, Optical properties.

Citation

SHI FENG NIU, JIA HONG ZHENG, A study of structural, magnetic and optical properties of Zn1xCrxO, Optoelectronics and Advanced Materials - Rapid Communications, 7, 1-2, January-February 2013, pp.104-109 (2013).

Submitted at: July 2, 2012

Accepted at: Feb. 20, 2013