Influence of Defective Formations on Photoconductivity of Layered Crystals with Cationic Substitution

Authors A. Kashuba1 , 2 , B. Andriyevskyy3, I. Semkiv1 , L. Andriyevska4, R. Petrus1 , E. Zmiiovska1 , D. Popovych5

1Lviv Polytechnic National University, Faculty of Physics, 12, S. Bandera Str., 79013 Lviv, Ukraine

2Ivan Franko National University of Lviv, Faculty of Electronics and Computer Technologies, 107, Tarnavsky Str., 79005 Lviv, Ukraine

3Faculty of Civil Engineering, Environmental and Geodetic Sciences, Koszalin University of Technology, 2, Śniadeckich Str., PL-75-453 Koszalin, Poland

4Faculty of Electronics and Computer Sciences, Koszalin University of Technology, 2, Śniadeckich Str., PL-75-453 Koszalin, Poland

5Pidstryhach Institute for Applied Problems of Mechanics and Mathematics NAS of Ukraine, 3-B, Naukova Str., Lviv, Ukraine

Issue Volume 10, Year 2018, Number 6
Dates Received 07 September 2018; revised manuscript received 07 December 2018; published online 18 December 2018
Citation A. Kashuba, B. Andriyevskyy, I. Semkiv, et al., J. Nano- Electron. Phys. 10 No 6, 06025 (2018)
PACS Number(s) 72.20. − i
Keywords Semiconductors (25) , Band structure (3) , Effective mass (2) , Mobility (10) , Conductivity (43) .

The results of studying the electronic conductivity of InxTl1 – xI solid solutions of substitution are presented. The effective mass and mobility of an electron have been determined with using the first-principle calculations of the band-energy structure. The investigation was carried out for InxTl1 – xI solid solutions of substitution with the concentrations 0.125, 0.25, 0.375, 0.5, 0.625 of thallium. Dynamics of changes in the effective mass, mobility and conductivity as functions of the thallium content has been established. Peculiarities of the band-energy spectrum of defective structures (with anionic vacancies and cationic interstitials) have been investigated. Shapes of the conductivity spectrum and its transformation under the influence of defective formations have been studied.

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