Refractive Index, Static Dielectric Constant, Energy Band Gap and Oscillator Parameters of Ga<sub>2</Sub>ses Single Crystals

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2007

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Wiley-v C H verlag Gmbh

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Department of Electrical & Electronics Engineering
Department of Electrical and Electronics Engineering (EE) offers solid graduate education and research program. Our Department is known for its student-centered and practice-oriented education. We are devoted to provide an exceptional educational experience to our students and prepare them for the highest personal and professional accomplishments. The advanced teaching and research laboratories are designed to educate the future workforce and meet the challenges of current technologies. The faculty's research activities are high voltage, electrical machinery, power systems, signal and image processing and photonics. Our students have exciting opportunities to participate in our department's research projects as well as in various activities sponsored by TUBİTAK, and other professional societies. European Remote Radio Laboratory project, which provides internet-access to our laboratories, has been accomplished under the leadership of our department with contributions from several European institutions.

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Abstract

The optical properties of Bridgman method grown Ga2SeS crystals have been investigated by means of room-temperature transmittance and reflectance spectral analysis. The optical data have revealed direct and indirect allowed transition band gaps of 2.49 and 2.10 eV, respectively. The room-temperature refractive index, which was calculated from the reflectance and transmittance data, allowed the identification of the dispersion and oscillator energies, static dielectric constant and static refractive index as 20.93 eV and 4.01 eV, 6.21 and 2.49, respectively.

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Gasanly, Nizami/0000-0002-3199-6686; Qasrawi, Atef Fayez/0000-0001-8193-6975; Gasanly, Nizami/0000-0002-3199-6686
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Gasanly, Nizami ORCID logo
Qasrawi, Atef Fayez ORCID logo
Gasanly, Nizami ORCID logo

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15

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12th Hasselt Diamond Workshop 2007 (SBDD XII) -- FEB 28-MAR 02, 2007 -- Hasselt Univ, Diepenbeek-Hasselt, BELGIUM

Volume

204

Issue

9

Start Page

3165

End Page

3169

URI

https://doi.org/10.1002/pssa.200723122
 https://hdl.handle.net/20.500.14411/889

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