Easily prepared one dimensional zinc oxide crystals, characterization and application in UV photodetector. (2021)

• Record Type: Journal Article
• Authors: Sarkar, Sudipta Kumar; Gupta, Dipti
• Is Part Of: Materials today. Volume 47:Part 14(2021)
• Page Start: 4712
• Page End: 4717
• Publication Date: 2021
• Subjects: Zinc oxide -- One dimensional crystal -- Wet chemistry -- Photodetector; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2021.05.604
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: One dimensional (1D) zinc oxide crystals (ZCs) were prepared using a simple wet chemical route. Structural and morphological characterizations were performed through x-ray diffraction, scanning electron microscopy and transmission electron microscopy. Thus, the prepared sample confirmed the hexagonal crystal phase of zinc oxide and displayed a uniform morphology with 1D structure. The average length and diameter of the prepared ZnO based 1D structure were found to be 8 µm and 0.7 µm respectively. Energy dispersive x-ray spectroscopy and Fourier transform infrared spectroscopy were performed to study the chemical purity of the sample. The prepared sample also showed its excellent ability in ultra-violet (UV) absorption with a sharp absorption peak at 369 nm and a photoluminescence (PL) property with a sharp emission peak at 384 nm. Finally, a UV photodetector device was fabricated with the prepared sample and its photoconductivity with a significant change in resistance was observed upon UV exposure.