Structural and optical properties of thermally evaporated (GaSe)0.75-(GaS)0.25 thin films

Date

2021-03-01

Author

Isik, M.
Emir, C.
Hasanlı, Nızamı

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

103
views

0
downloads

GaSe and GaS binary semiconducting compounds are layered structured and have been an attractive research interest in two-dimensional material research area. The present paper aims at growing (GaSe)0.75 - (GaS)0.25 (or simply GaSe0.75S0.25) thin film and investigating its structural and optical properties. Thin films were prepared by thermal evaporation technique using evaporation source of its single crystal grown by Bridgman method. The structural properties were revealed using x-ray diffraction (XRD), energy dispersive spectroscopy (EDS), scanning electron microscopy (SEM) and atomic force microscopy (AFM) techniques. XRD pattern and EDS analyses indicated that thin films annealed at 300 ?C were successfully deposited and its structural characteristics are well-consistent with its single crystal form. Surface morphology was studied by means of SEM and AFM measurements. Optical properties were investigated by transmission and Raman spectroscopy techniques. Raman spectrum exhibited three peaks around 172, 242 and 342 cm-1. Analyses of transmission spectrum revealed the direct band gap energy as 2.34 eV. The mixed compounds of GaSe0.75S0.25 were prepared for the first time in a thin film form and the results of the present paper would provide valuable information to research area in which layered compounds have been studied in detail.

URI

https://hdl.handle.net/11511/89812

Journal

OPTIK

DOI

https://doi.org/10.1016/j.ijleo.2021.166344

Collections

Department of Physics, Article

Suggestions

OpenMETU
Core

Structural, thermodynamical, and transport properties of undercooled binary Pd-Ni alloys Kart, S. Ozdemir; Tomak, Mehmet; Uludogan, M.; Cagin, T. (Elsevier BV, 2006-11-05) The solidification properties of Pd-Ni alloys are studied with constant-pressure, constant-temperature (TPN), and constant-volume, constant-temperature (TVN) molecular dynamics simulations based on quantum Sutton-Chen potential. Whether the system forms the glass structure or it transforms into ordered state is checked at various cooling rates ranging from 10 K/ps to 0.05 K/ps. The effect of concentration and cooling rates on the glass transition temperature is examined. The behavior of heat capacity at con...
Structural properties of indium phosphide nanorods: molecular dynamics simulations Nayir, Nadire; TAŞCI, EMRE; Erkoç, Şakir (2016-01-01) We study the structural properties of the indium phosphide nanorods of different thickness in zinc blende and wurtzite phases by performing classical molecular dynamics simulations using an inter-atomic potential. In addition to different temperatures, the nanorods are also investigated under strain and compression. When the stretch is applied, simulations reveal that the sequence of the irreversible structural transformation for the zinc blende nanorods is zinc blende -> rock salt -> wurtzite and the wurtz...
Structural and electronic properties of guanine and guanosine Erkoc, F; Erkoç, Şakir (Elsevier BV, 2002-08-16) The structural and electronic properties of guanine and guanosine have been investigated theoretically by performing semi-empirical and ab initio molecular orbital theory calculations. The geometry of the systems have been optimized considering the semi-empirical molecular orbital theory at the level of Austin model 1, and the electronic properties of the systems have been calculated by ab initio restricted Hartree-Fock with including full MP2 correlation correction in their ground state.
Structural and dynamical properties of liquid Pd-Ag alloys Kart, HH; Tomak, Mehmet; Uludogan, M; Cagin, T (World Scientific Pub Co Pte Lt, 2004-06-30) Structural and dynamical properties of Pd, Ag pure liquid metals and especially PdxAg1-x, alloys are studied by the molecular dynamics simulation. The effects of temperature and concentration on the liquid properties of PdxAg1-x, are analyzed. Sutton-Chen (SC) and Quantum Sutton-Chen (Q-SC) many-body potentials are used as interatomic interactions. The calculated diffusion constants and viscosities are in good agreement with the available experimental data and theoretical calculations. The coefficients of A...
Structural, electrical and optical characterization of ge-implanted gase single crystal grown by Bridgman Method Karaağaç, Hazbullah; Akınoğlu, Bülent Gültekin; Department of Physics (2005) In this work, structural, electrical and optical characterization of as-grown, Ge-implanted, and annealed GaSe single crystals grown by using 3-zone vertical Bridgman-Stockbarger system, have been studied by carrying out X-ray Diffraction (XRD), electrical conductivity, Hall effect, photoconductivity, and spectral transmission measurements. The temperature dependent electrical conductivity of these samples have been measured between 100 and 400 K. As a result, it was observed that upon implanting GaSe with ...

Citation Formats

M. Isik, C. Emir, and N. Hasanlı, “Structural and optical properties of thermally evaporated (GaSe)0.75-(GaS)0.25 thin films,” OPTIK, pp. 0–0, 2021, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/89812.