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http://yadda.icm.edu.pl:80/baztech/element/bwmeta1.element.baztech-1c133574-2b8e-4a94-be2a-4f77fbb6f43a

Czasopismo

Materials Science Poland

Tytuł artykułu

Optical spectroscopic analysis of annealed Cd1−xZnxSe thin films deposited by close space sublimation technique

Autorzy Ali, I.  Iqbal, A.  Mahmood, A.  Shah, A.  Zakria, M.  Ali, A. 
Treść / Zawartość http://www.materialsscience.pwr.wroc.pl/
Warianty tytułu
Języki publikacji EN
Abstrakty
EN Cd1−xZnxSe (x = 0, 0.40 and 1) thin films were deposited on a glass substrate at room temperature by closed space sublimation method. Optical investigation has been performed using spectrophotometry and ellipsometry. It has been found that for as deposited films the optical band gap increased and the optical constants decreased with increasing Zn content. To improve the optical properties of Cd1−xZnxSe thin films annealing effect at 400 °C was taken into consideration for various Zn contents. It was observed that the optical transmittance and band gap decreased while optical constants increased with increasing Zn content after annealing. The effects of composition and annealing on the optical dispersion parameters Eoand Edwere investigated using a single effective oscillator model. The calculated value of the average excitation energy Eoobeys the empirical relation (Eo= Eg/2) obtained from the single oscillator model.
Słowa kluczowe
EN thin films   optical constants   ellipsometry   Cd1−xZnxSe   optical band gap  
Wydawca Springer
Czasopismo Materials Science Poland
Rocznik 2016
Tom Vol. 34, No. 4
Strony 828--833
Opis fizyczny Bibliogr. 23 poz., rys., tab.
Twórcy
autor Ali, I.
  • Department of Physics, Pakistan Institute of Engineering and Applied Science (PIEAS), Islamabad Pakistan, Ijazwatoozi@gmail.com
autor Iqbal, A.
  • National Institute of Lasers and Optronics (NILOP), Islamabad, Pakistan
autor Mahmood, A.
  • National Institute of Lasers and Optronics (NILOP), Islamabad, Pakistan
autor Shah, A.
  • National Institute of Lasers and Optronics (NILOP), Islamabad, Pakistan
autor Zakria, M.
  • National Institute of Lasers and Optronics (NILOP), Islamabad, Pakistan
autor Ali, A.
  • Quality Assurance Division, Pakistan Institute of Nuclear Science and Technology, Islamabad, Pakistan
Bibliografia
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Uwagi
Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).
Kolekcja BazTech
Identyfikator YADDA bwmeta1.element.baztech-1c133574-2b8e-4a94-be2a-4f77fbb6f43a
Identyfikatory
DOI 10.1515/msp-2016-0118