Study of Photoconductivity and Photoluminescence in ZnO Microstructures Synthesized by Thermal Decomposition of Zinc Nitrate

作者：Saxena Ravi S.; Srivastava Rajneesh K.^*; Mishra S. K.; Shukla R. K.

来源：Proceedings of the National Academy of Sciences India Section A-Physical Sciences, 2018, 88(1): 157-162.

DOI：10.1007/s40010-016-0321-x

• Photoconductivity
• Photoluminescence
• XRD
• ZnO

In the present work, ZnO microstructures are synthesized by thermal decomposition of zinc nitrate [Zn(NO3)(2)center dot 6H(2)O] in air at 500 degrees C for 3 h. Structural and morphological study of ZnO microstructures have been analyzed by X-ray diffraction and scanning electron microscopy. UV-Vis absorption spectroscopy of ZnO microstructures exhibits absorption edge at 381 nm. Room temperature photoluminescence spectrum exhibits strong ultraviolet emission together with feeble visible emissions. In photoconductivity study, rise and decay of photocurrents under UV-Vis illumination have been recorded in air as well as in vacuum. Trap depth is calculated using decay portion of the rise and decay of photocurrent.

• 出版日期2018-3