TY - JOUR
T1 - Modulation of optical and photoluminescence properties of ZnO thin films by Mg dopant
AU - Jogi, Anushree
AU - Ayana, A.
AU - Rajendra, B. V.
N1 - Funding Information:
The authors would like to express gratitude to Manipal Institute of Technology, MAHE Manipal, for providing laboratory facilities. The authors would like to thank Dr. Sudha D Kamath, Department of Physics, MIT for providing a photoluminescence facility.
Publisher Copyright:
© 2023, The Author(s).
PY - 2023/3
Y1 - 2023/3
N2 - Nanostructured Zn1−xMgxO (x = 0–0.04) thin films were deposited on a glass substrate through the sol–gel dip coating. X-ray diffraction indicates the films exhibited a hexagonal wurtzite structure with maximum intensity at (1 0 1) plane. The intensity of the diffraction peak decreased with increasing the Mg doping concentration. The crystallite size varied as a function of the increase in Mg doping concentration. The deposits showed a nanograin structure for pure ZnO, which changes in the presence of Mg content, and elemental composition was confirmed by using energy-dispersive spectra. Optical analysis showed a significant increase in transmittance from 80 to 90% in the visible range and a decrement in the optical bandgap energy from 3.305 to 3.261 eV with an increase in Mg doping. Photoluminescence spectra showed there was a quenching of near band edge emission with doping concentration and a red emission for Zn0.96Mg0.04O film. The color coordinates of the deposits were in the nearly white light region, showing the maximal white light emission.
AB - Nanostructured Zn1−xMgxO (x = 0–0.04) thin films were deposited on a glass substrate through the sol–gel dip coating. X-ray diffraction indicates the films exhibited a hexagonal wurtzite structure with maximum intensity at (1 0 1) plane. The intensity of the diffraction peak decreased with increasing the Mg doping concentration. The crystallite size varied as a function of the increase in Mg doping concentration. The deposits showed a nanograin structure for pure ZnO, which changes in the presence of Mg content, and elemental composition was confirmed by using energy-dispersive spectra. Optical analysis showed a significant increase in transmittance from 80 to 90% in the visible range and a decrement in the optical bandgap energy from 3.305 to 3.261 eV with an increase in Mg doping. Photoluminescence spectra showed there was a quenching of near band edge emission with doping concentration and a red emission for Zn0.96Mg0.04O film. The color coordinates of the deposits were in the nearly white light region, showing the maximal white light emission.
UR - http://www.scopus.com/inward/record.url?scp=85148861507&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85148861507&partnerID=8YFLogxK
U2 - 10.1007/s10854-023-09999-z
DO - 10.1007/s10854-023-09999-z
M3 - Article
AN - SCOPUS:85148861507
SN - 0957-4522
VL - 34
JO - Journal of Materials Science: Materials in Electronics
JF - Journal of Materials Science: Materials in Electronics
IS - 7
M1 - 624
ER -