Structural, optical and photoluminescence properties of copper and iron doped nanoparticles prepared by co-precipitation method

Abstract

Copper (Cu) and iron (Fe) doped zinc oxide (ZnO) nanoparticles (NPs) were synthesized by co-precipitation method. The average crystallite sizes of the synthesized NPs were found to be 28 and 30 nm for Cu and Fe doped ZnO NPs respectively. From FESEM images, Cu and Fe doped ZnO NPs showed that the spherical structure morphology. The amount of dopant (Cu 2? and Fe 3? ) ions incorporated with ZnO NPs was determined by EDAX. FT-IR spectra confirmed the presence of Zn-O stretching bands at 438, 416 and 431 cm -1 in the respective ZnO NPs. Optical absorption spectra revealed the estimated band gap was found to increase for Cu and Fe doped ZnO NPs as compared to the pure ZnO NPs. The photoluminescence measurements revealed the broad emissions were composed seven different bands due to zinc vacancies, oxygen vacancies and surface defects.

Synthesis, structural and optical properties of pure ZnO and Co doped ZnO nanoparticles prepared by the co-precipitation method

“…There are several methods reported in the literature for the synthesis of undoped, doped ZnO NPs and its derivatives which can be categorized into either (Chemical or Physical, co-precipitation, hydrothermal, solvothermal, emulsion and microemulsion methods etc.) [10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28]. Among the various methods, co-precipitation is one of the most important methods to prepare the nanoparticles.…”

Aluminum enhances the oxidative damage of ZnO NMs in the human neuroblastoma SH-SY5Y cell line

“…The electronic properties of AZO depend on the incorporation of dopants in substitutional sites of the ZnO matrix. There are different approaches for the synthesis of AZO, such as solvothermal [ 20 ], sol–gel [ 21 ], precipitation [ 22 ], gas condensation [ 23 ], hydrothermal process [ 24 ], and hydrolysis in polyol medium [ 25 ]. Among them, the synthesis of AZO materials using a microwave-activated solvothermal approach allows the fabrication of the crystalline materials within minutes and facilitates the optimization of the synthesis variables.…”

Preparation of Bi‐Doped ZnO Thin Film over Optical Fiber and Their Application as Detection of Ethylenediamine in an Aqueous Medium Based on the Evanescent Field Technique

“…[ 16,17 ] The doping of Bi +3 into ZnO accommodates to produce a large mismatch into lattices and resulting to generate new defects center due to differences in ionic radii of Bi +3 (0.103 nm) and Zn +2 (0.072 nm). [ 18 ] Various techniques such as sol–gel, [ 19 ] microwave‐assisted, [ 20 ] and co‐precipitation technique, [ 21 ] etc, have reported for the preparation of the Bi‐doped ZnO material. Amine analyte molecules such as triethylamine (TEA), diethyl amine, etc., are commonly used in pharmaceutical drugs, chemical manufacturing, food plant, and rocket fuel.…”