Thermoluminescence study in Cu<sub>3</sub>Ga<sub>5</sub>S<sub>9</sub> single crystals: Application of heating rate and <i>T</i><sub>m</sub>-<i>T</i><sub>stop</sub> methods

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Date

2018

Journal Title

Journal ISSN

Volume Title

Publisher

Elsevier Science Bv

Research Projects

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Organizational Unit
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

Cu3Ga5S9 semiconducting single crystals were investigated using thermoluminescence (TL) measurements in 10-300 K temperature region. In the TL glow curve, one peak starting to appear at the instant temperature is increased from 10 K and another peak, which is broader than a general individual TL peak, were observed. The broad peak around 66 K was investigated using T-m-T-stop experimental method to understand whether or not this peak is composed of more than one individual peaks or continuously distributed traps. Curve fitting, initial rise and peak shape methods were used for acceptable TL curves to be analyzed. TL curves in T-m-T-stop method indicated that observed peaks are due to the existence of quasi-continuous distribution of traps. Structural characterizations of Cu3Ga5S9 single crystals were studied using x-ray diffraction and energy dispersive spectroscopy measurements. The crystal structure, lattice parameters and atomic composition of the elements were reported in the present paper.

Description

Gasanly, Nizami/0000-0002-3199-6686; Gasanly, Nizami/0000-0002-3199-6686

Keywords

Thermoluminescence, Trap distribution, T-m-T-stop method

Turkish CoHE Thesis Center URL

Citation

6

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Q2

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Source

Volume

199

Issue

Start Page

334

End Page

338

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