Effect of sodium based transparent binders on the optical properties of GaSe thin films
Other Title(s)
تأثير المواد الرابطة الشفافة القائمة على الصوديوم في الخصائص البصرية لأغشية GaSe الرقيقة
Author
Source
Journal of the Arab American University
Issue
Vol. 4, Issue 1 (30 Jun. 2018), pp.48-64, 17 p.
Publisher
Arab American University Deanship of Scientific Research
Publication Date
2018-06-30
Country of Publication
Palestine (West Bank)
No. of Pages
17
Main Subjects
Abstract EN
The effect of sodium based transparent binders on the optical properties of vacuum evaporated GaSe thin films are explored by means of optical reflectivity and transmittance of the binder, GaSe and GaSe/binder interfaces in the incident light wavelength range of 300-1100 nm.
The analysis of the absorption coefficient spectra for the three samples revealed a pronounced red shift in the direct allowed electron transition's energy band gap of the GaSe.
In addition, the band tail states of GaSe, which was observed at ~ 0.25 eV, disappeared upon binder coating.
The binder coated GaSe films screen the energy band gap of the GaSe as band tail state in its energy band gap.
On the other hand, the analysis of the dielectric spectra of the binder coated GaSe thin films displayed an abnormal enhancement in the optical conductivity of the double layer.
The optical conductivity, which was modeled in accordance to Lorentz theory, displayed significant change in the free carrier density, the drift mobility, the electron collision time and the effective mass of GaSe upon binder coating.
The study ends with the result that the sodium-based binder behaves as a fully transparent optical window to the optoelectronically sensitive GaSe thin films.
American Psychological Association (APA)
Umar, Ahmad. 2018. Effect of sodium based transparent binders on the optical properties of GaSe thin films. Journal of the Arab American University،Vol. 4, no. 1, pp.48-64.
https://search.emarefa.net/detail/BIM-837018
Modern Language Association (MLA)
Umar, Ahmad. Effect of sodium based transparent binders on the optical properties of GaSe thin films. Journal of the Arab American University Vol. 4, no. 1 (Jun. 2018), pp.48-64.
https://search.emarefa.net/detail/BIM-837018
American Medical Association (AMA)
Umar, Ahmad. Effect of sodium based transparent binders on the optical properties of GaSe thin films. Journal of the Arab American University. 2018. Vol. 4, no. 1, pp.48-64.
https://search.emarefa.net/detail/BIM-837018
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 62-63
Record ID
BIM-837018