Insight into the effect of screw dislocations and oxygen vacancy defects on the optical nonlinear refraction response in chemically grown ZnO/Al2O3 films

• Published in: Journal of applied physics Vol. 122; no. 19
• Main Authors: Agrawal, Arpana, Saroj, Rajendra K., Dar, Tanveer A., Baraskar, Priyanka, Sen, Pratima, Dhar, Subhabrata
• Format: Journal Article
• Language: English
• Published: Melville American Institute of Physics 21.11.2017
• Subjects: Aluminum oxide; Applied physics; Chemical vapor deposition; Defects; Flow velocity; Nonlinear response; Nonlinearity; Optoelectronic devices; Organic chemistry; Oxygen; Photoluminescence; Refraction; Sapphire; Screw dislocations; Substrates; Vacancies; Zinc oxide

We report the effect of screw dislocations and oxygen vacancy defects on the optical nonlinear refraction response of ZnO films grown on a sapphire substrate at various oxygen flow rates using the chemical vapor deposition technique. The nonlinear refraction response was investigated in the off-reso...