Structural characterization and optical properties of pulsed laser deposition of Se75Te25 and Se75Te17Ge8 amorphous thin films

This research work describes the phase change studies in Se85In15−xZnx thin films at various annealing temperatures. Glassy samples of Se85In15−xZnx were synthesized by the melt quenching method and thin films of thickness 400 nm were prepared by the vacuum evaporation technique on a glass/Si wafer substrate. The glass transition temperature (Tg) and the on-set crystallization temperature (Tc) of the prepared alloys were evaluated by non-isothermal differential scanning calorimetry studies. Thin films were annealed at three temperatures 330 K, 340 K, and 350 K (which are in between Tg and Tc of the synthesized samples) in a vacuum furnace for 2 h. High resolution X-ray diffraction studies demonstrate that the as-prepared films are amorphous in nature whereas the annealed films are of crystalline/polycrystalline in nature. Field emission scanning electron microscopy studies of thin films (as-deposited and crystallized) confirm the phase transformation in Se85In15−xZnx thin films. Optical band gaps were calculated from the Tauc's extrapolation procedure and were found to be enhanced with the Zn concentration and decrease with the increasing annealing temperature. Various optical parameters were evaluated for as-prepared and annealed Se85In15−xZnx thin films. The changes in optical parameters with annealing temperature were described on the basis of structural relaxation as well as changes in defect states and density of localized states during amorphous to crystalline phase transformation in Se85In15−xZnx thin films.

show abstract

Phase change studies in Se85In15−xZnx chalcogenide thin films

Srivastava

Tiwari

Alvi³

et al. 2018

Journal of Applied Physics

View full text Add to dashboard Cite

show abstract

Influence of spray time on the optical and electrical properties of CoNi₂S₄ thin films

Radaf

Fouad

Ismail

et al. 2018

Mater. Res. Express

View full text Add to dashboard Cite

Synthesis and characterization of F-doped CdS thin films by spray pyrolysis for photovoltaic applications

Radaf

Hameed

Yahia

2018

Mater. Res. Express

View full text Add to dashboard Cite

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Structural characterization and optical properties of pulsed laser deposition of Se75Te25 and Se75Te17Ge8 amorphous thin films

Cited by 3 publications

References 22 publications

Phase change studies in Se85In15−xZnx chalcogenide thin films

Phase change studies in Se85In15−xZnx chalcogenide thin films

Influence of spray time on the optical and electrical properties of CoNi₂S₄ thin films

Synthesis and characterization of F-doped CdS thin films by spray pyrolysis for photovoltaic applications

Contact Info

Product

Resources

About

Structural characterization and optical properties of pulsed laser deposition of Se75Te25 and Se75Te17Ge8 amorphous thin films

Cited by 3 publications

References 22 publications

Phase change studies in Se85In15−xZnx chalcogenide thin films

Phase change studies in Se85In15−xZnx chalcogenide thin films

Influence of spray time on the optical and electrical properties of CoNi2S4 thin films

Synthesis and characterization of F-doped CdS thin films by spray pyrolysis for photovoltaic applications

Contact Info

Product

Resources

About

Influence of spray time on the optical and electrical properties of CoNi₂S₄ thin films