Işık, Mehmet

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Profile URL
https://hdl.handle.net/20.500.14411/8160
Name Variants
Mehmet, Işık
M.,Işık
Isik, Mehmet
Mehmet, Isik
I., Mehmet
I.,Mehmet
Işık,M.
Isik,M.
I.,Mehmet
M.,Isik
Işık, Mehmet
M., Isik
Isik, M.
Job Title
Profesör Doktor
Email Address
mehmet.isik@atilim.edu.tr
Main Affiliation
Department of Electrical & Electronics Engineering
Status
Former Staff
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Sustainable Development Goals

2

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11

SUSTAINABLE CITIES AND COMMUNITIES
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14

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1

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6

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5

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9

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Scholarly Output

173

Articles

169

Views / Downloads

442/794

Supervised MSc Theses

3

Supervised PhD Theses

0

WoS Citation Count

1806

Scopus Citation Count

1861

WoS h-index

20

Scopus h-index

20

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0

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0

WoS Citations per Publication

10.44

Scopus Citations per Publication

10.76

Open Access Source

11

Supervised Theses

3

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JournalCount
Optical Materials17
Physica B: Condensed Matter16
Journal of Luminescence15
Materials Science in Semiconductor Processing14
Journal of Materials Science: Materials in Electronics12
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Scholarly Output Search Results

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    Citation - WoS: 4
    Citation - Scopus: 3
    Temperature-dependent material characterization of CuZnSe2 thin films
    (Elsevier Science Sa, 2020) Gullu, H. H.; Surucu, O.; Terlemezoglu, M.; Isik, M.; Ercelebi, C.; Gasanly, N. M.; Parlak, M.
    In the present work, CuZnSe2 (CZSe) thin films were co-deposited by magnetron sputtering of ZnSe and Cu targets. The structural analyses resulted in the stoichiometric elemental composition and polycrystalline nature without secondary phase contribution in the film structure. Optical and electrical properties of CZSe thin films were investigated using temperature-dependent optical transmission and electrical conductivity measurements. The band gap energy values were obtained using transmittance spectra under the light of expression relating absorption coefficient to incident photon energy. Band gap energy values were found in decreasing behavior from 2.31 to 2.27 eV with increase in temperature from 10 to 300 K. Temperature-band gap dependency was evaluated by Varshni and O'Donnell models to detail the optical parameters of the thin films. The experimental dark and photoconductivity values were investigated by thermionic emission model over the grain boundary potential. Room temperature conductivity values were obtained in between 0.91 and 4.65 ( x 10(-4) Omega(-1)cm(-1)) under various illumination intensities. Three different linear conductivity regions were observed in the temperature dependent profile. These linear regions were analyzed to extract the activation energy values.