TY - JOUR
T1 - Enhancement of optical limiting performance in nanocrystalline La3+ doped ZnO film
AU - Ayana, A.
AU - Gummagol, Neelamma B.
AU - Patil, Parutagouda Shankaragouda
AU - Sharma, Pankaj
AU - Rajendra, B. V.
N1 - Funding Information:
Ms. Ayana would like to thank the Manipal Academy of Higher Education (MAHE) for providing the scholarship for research work and instrumentation facilities. Author thanks MAHE-UNSW, Sydney, Australia, for sanctioning seed funds for collaborative research work. Authors also grateful to UGC-DAE CSR consortium, Mumbai Center, India for extending finance support [UDCSR/MUM/AO/CRS-M-315/2020/813]. Dr. P. S. Patil acknowledges Science and Engineering Research Board (SERB) , Government of India, for the core research grant ( EMR/2017/003632 ). The authors also thank Dr. Sudha D Kamath for providing the PL instrumentation facility.
Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2021/10
Y1 - 2021/10
N2 - Zn1-xLaxO nanofilms were prepared on the glass substrate at 723K using the chemical spray pyrolysis technique. All deposits are hexagonal wurtzite structures with intense plane along the (101) plane. The films doped with 3% La3+ ion showed the least crystalline size with maximum dislocation density. The surface morphology of the deposits changed from fibrous to needles like structure with increased dopant concentration. Both red and blue shifts of absorption edge were noticed as a function of dopant in highly transparent deposited films. A systematic variation of the extinction coefficient and the refractive index was noticed with the incorporation of La3+ in the deposits. Various defects oriented in the films were confirmed by photoluminescence spectra. However, white light emission was found for 4% doped film. Third-order nonlinear optical absorption coefficient (β), susceptibility (χ3) and refractive index (n2) values are 15 × 10−1cm/W, 6.11 × 10−4esu, and −0.34 × 10−5cm2/W, respectively for 3% doped film. It was noticed that Zn0.97La0.03O nanofilm is a more suitable optical limiter application.
AB - Zn1-xLaxO nanofilms were prepared on the glass substrate at 723K using the chemical spray pyrolysis technique. All deposits are hexagonal wurtzite structures with intense plane along the (101) plane. The films doped with 3% La3+ ion showed the least crystalline size with maximum dislocation density. The surface morphology of the deposits changed from fibrous to needles like structure with increased dopant concentration. Both red and blue shifts of absorption edge were noticed as a function of dopant in highly transparent deposited films. A systematic variation of the extinction coefficient and the refractive index was noticed with the incorporation of La3+ in the deposits. Various defects oriented in the films were confirmed by photoluminescence spectra. However, white light emission was found for 4% doped film. Third-order nonlinear optical absorption coefficient (β), susceptibility (χ3) and refractive index (n2) values are 15 × 10−1cm/W, 6.11 × 10−4esu, and −0.34 × 10−5cm2/W, respectively for 3% doped film. It was noticed that Zn0.97La0.03O nanofilm is a more suitable optical limiter application.
UR - https://www.scopus.com/pages/publications/85106272704
UR - https://www.scopus.com/pages/publications/85106272704#tab=citedBy
U2 - 10.1016/j.mssp.2021.105931
DO - 10.1016/j.mssp.2021.105931
M3 - Article
AN - SCOPUS:85106272704
SN - 1369-8001
VL - 133
JO - Materials Science in Semiconductor Processing
JF - Materials Science in Semiconductor Processing
M1 - 105931
ER -