Synthesis, characterization, and optical properties of copper oxide thin films obtained by spray pyrolysis deposition

Rawaa A Faris

doi:10.30723/ijp.v11i22.354

Abstract

    Copper oxide thin films were synthesized by using spray pyrolysis deposition technique, in the temperature around 400°C in atmosphere from alcoholic solutions. Copper (II) chloride as precursor and glass as a substrate. The textural and structural properties of the films were characterized by atomic force microscopy (AFM), X-ray diffraction (XRD). The average particle size determined from the AFM images ranged from 30 to 90 nm and the roughness average was equal to 9.3 nm. The XRD patterns revealed the formation of a polycrystalline hexagonal CuO. The absorption and transmission spectrum, band gap, film thickness was investigated. The films were tested as an optical limiter. The experiments were performed using Q-switched Nd:YAG laser at 532nm and 1064 nm at different intensities. Copper oxide thin films appear to be attractive candidates for optical limiting application and sensor application.   

Highlights

Materials have emerged as attractive alternatives to conventional materials by virtue of their prominent electronic, optical and chemical properties [1]
Copper oxide-based materials are of interest on account of their potential uses in many technological fields
In addition to photovoltaic devices, copper oxides have been used as electrode materials for lithium batteries

Summary

Introduction

Materials have emerged as attractive alternatives to conventional materials by virtue of their prominent electronic, optical and chemical properties [1]. Copper have attracted considerable interest because of their optical, catalytic, mechanical and electrical properties, resulting in a wide range of applications in the field of metallurgy, catalysis, and optoelectronics. CuO and Cu2O materials are known to be ptype semiconductors in general and potentially useful for constructing junction devices such as pn junction diodes. Apart from their semiconductor applications, these materials have been employed as heterogenous catalysts for several environmental processes, solid state gas sensor heterocontacts, and microwave dielectric materials. Their use in power sources has received special attention.

Ideal optical limmiter Damaged sample

Results and Discussion

Conclusions