Study of the morphology, photoluminescence and photoconductivity of ZnO–CdO nanocrystals. (23rd February 2015)

• Record Type: Journal Article
• Authors: Karim, A M M Tanveer; Rahman, M Mozibur; Shahjahan, M; Khan, M K R
• Is Part Of: Materials research express. Volume 2:Number 3(2015)
• Publication Date: 2015-02-23
• Subjects: thin films -- ZnO-CdO composite -- photoconductivity; Materials science -- Research -- Periodicals; Materials science -- Periodicals; 620.11
• DOI: 10.1088/2053-1591/2/3/036402
• Languages: English
• ISSNs: 2053-1591

Abstract

Abstract: Transparent and highly photoconductive nano-composite ZnO–CdO films were fabricated on glass substrate at 360 °C substrate temperature. X-ray diffraction (XRD) studies indicate that the films are nano-crystalline and contain a combination of hexagonal ZnO and cubic CdO structures. According to scanning electron microscopy (SEM) studies, the surface of the films is found to be rough over large areas favoring photo absorption. From the optical and electrical measurements, it is found that ZnO–CdO composite combines the properties of optical transparency in the visible region with a high electrical conductivity. Based on the characteristics of photoluminescence (PL) and photoconductivity, it seems that Zn/Cd = 3:1 nano-crystalline film is preferable for application as buffer layers in solar cells.