scholarly journals Tunable Band Gap Energy of Mn-Doped ZnO Nanoparticles Using the Coprecipitation Technique

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Tong Ling Tan ◽  
Chin Wei Lai ◽  
Sharifah Bee Abd Hamid
Keyword(s):  
Zno Nanoparticles ◽  
Band Gap Energy ◽  
Gap Energy ◽  
Morphological Studies ◽  
Coprecipitation Technique ◽  
Doped Zno ◽  
Agglomeration Of Nanoparticles ◽  
Lattice Doping ◽  
Mn Doped ◽  
Tunable Band Gap

A simple coprecipitation technique was introduced to form manganese (Mn) doped on zinc oxide (ZnO) nanoparticles effectively. Based on our morphological studies, it was revealed that mean particle size was increased while bigger agglomeration of nanoparticles could be observed as the amount of concentration of Mn was increased. Interestingly, it was found that the position of the absorption spectra was shifted towards the lower wavelength (UV region) as correlated with the increasing of Mn dopants concentration into ZnO nanoparticles. This result inferred that optimum content of Mn doped into the ZnO nanoparticles was crucial in controlling the visible/UV-responsive of samples. In the present study, 3 mol% of Mn dopants into the ZnO nanoparticles exhibited the better UV as well as visible light-responsive as compared to the other samples. The main reason might be attributed to the modification of electronic structure of ZnO nanoparticles via lattice doping of Mn ions into the lattice, whereas excessive Mn dopants doped on ZnO nanoparticles caused the strong UV-responsive due to the more 3d orbitals in the valence band.

scholarly journals Synthesis and Optical Properties of B-Mg co-Doped ZnO Nanoparticles

Coatings ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 882
Author(s):  
Yuechan Li ◽  
Yongli Li ◽  
An Xie
Keyword(s):  
Optical Properties ◽  
Zno Nanoparticles ◽  
Great Influence ◽  
Structure Study ◽  
Band Gap Energy ◽  
One Pot ◽  
Gap Energy ◽  
Doping Impurity ◽  
Shrinkage Effect ◽  
Co Doped

Doping impurity into ZnO is an effective and powerful technique to tailor structures and enhance its optical properties. In this work, Zn1−xMgxO and Zn1−x−yMgxByO nanoparticles (x = 0, 0.1, 0.2, 0.3, 0.4; y = 0, 0.02, 0.04) were synthesized via one-pot method. It shows that the Mg and B dopants has great influence on crystallinity and surface morphology of ZnO nanoparticles, without changing the wurtzite structure of ZnO. The band structure study indicates that the competition of Conductive Band (CB) shift, Burstein–Moss (B-M) shift and Shrinkage effect will cause the band gap energy change in ZnO.

scholarly journals Mn-Doped ZnO Nanoparticles Prepared by Solution Combustion Method

2014 ◽  
Vol 12 (0) ◽  
pp. 283-288 ◽  
Author(s):  
Murugesan Silambarasan ◽  
Shanmugam Saravanan ◽  
Tetsuo Soga
Keyword(s):  
Zno Nanoparticles ◽  
Combustion Method ◽  
Solution Combustion ◽  
Solution Combustion Method ◽  
Doped Zno ◽  
Mn Doped

Magnetism in Mn-doped ZnO nanoparticles prepared by a co-precipitation method

2006 ◽  
Vol 17 (5) ◽  
pp. 1278-1285 ◽  
Author(s):  
O D Jayakumar ◽  
H G Salunke ◽  
R M Kadam ◽  
Manoj Mohapatra ◽  
G Yaswant ◽  
...  
Keyword(s):  
Zno Nanoparticles ◽  
Precipitation Method ◽  
Doped Zno ◽  
Co Precipitation ◽  
Mn Doped

Simple Precipitation Synthesis, Characterization and Antibacterial Activity of Mn-Doped ZnO Nanoparticles

2017 ◽  
Vol 9 (6) ◽  
pp. 483-488 ◽  
Author(s):  
V. Sumithra ◽  
A. Manikandan ◽  
M. Durka ◽  
Saravana Kumar Jaganathan ◽  
A. Dinesh ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Zno Nanoparticles ◽  
Doped Zno ◽  
Precipitation Synthesis ◽  
Mn Doped
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