Optical and Structural Changes in Swift Heavy Ion Irradiated Selenium Based Amorphous Chalcogenides for Optical Applications

Abstract

Swift heavy ion irradiation is a unique technique for material modification as it deposits massive energy in the selected area of samples. Swift heavy ion irradiation causes structural, linear and nonlinear optical changes in Selenium based amorphous thin films. The electronic energy loss (S_e) of ions within the thin film sample is the key factor in changing the optical and structural properties of the sample. In present review work, a parabolic relationship is observed between the mean coordination number (r) and log₁₀(S_e). The present systematic investigation on Selenium based amorphous chalcogenides will be helpful to design optical and optoelectronics components.

Keywords:

• Swift heavy ion
• electronic energy loss
• thin film
• optical properties
• structural properties

Acknowledgement

Author is thankful to UGC for providing funds via Minor Research Project: F. No. 8-3 99/2011 (MRP/NRCB), IUAC for providing beam time and other experimental facilities via BTR No and activity (49102 MS and MS 56402), Dr. Ambuj Tripathi (Scientist-G, IUAC, New Delhi) and Dr. D, K. Avasthi (Director, Amity Institute of Nanotechnology, Noida) for fruitful discussion and valuable suggestions.

Additional information

Funding

UGC New Delhi.