Spectroscopic investigations of polycrystalline InxSb20−xAg10Se70 (0 6 x 6 15) multicomponent chalcogenides

• Autorzy: Sharma R. , Sharma S. , Kumar P. , Chander R. , Thangaraj R. , Mian M.

Identyfikatory

DOI

10.1515/msp-2016-0114

• Języki publikacji: EN

Abstrakty

EN

The composition dependence of physical properties of chalcogenides has recently been studied for their phase change properties and energy conversion. In the present work, we report the structure, composition, optical and Raman spectroscopy results for bulk polycrystalline In_xSb_20-xAg₁₀Se₇₀ (0 ≤ × ≤ 15) samples. The phase quantification and composition have been studied by using XRD and EDX techniques. The alloy composition up to 5 at.% of indium resulted in crystallization of AgSbSe₂, while further increase in In content favored the formation of another chalcopyrite AgInSe₂ phase yielding the solid solutions for this alloy system. A decrease in band gap up to x = 5 followed by its increase with an increase in indium concentration has been observed. The variations in shape and position of characteristic Raman bands has been used for understanding the structural modifications of the network with the variation in indium content.

Słowa kluczowe

EN

chalcogenides; optical properties; Raman spectroscopy; XRD; analysis; EDS

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2016
• Tom: Vol. 34, No. 4
• Strony: 794--799
• Opis fizyczny: Bibliogr. 36 poz., rys., tab.

Twórcy

autor

Sharma R.

• Semiconductors Laboratory, Department of Physics, GND University, Amritsar 143005, India

autor

Sharma S.

• Semiconductors Laboratory, Department of Physics, GND University, Amritsar 143005, India

autor

Kumar P.

• Department of Physics, DAV University, Sarmastpur, Jalandhar-144012, India

autor

Chander R.

• Semiconductors Laboratory, Department of Physics, GND University, Amritsar 143005, India

autor

Thangaraj R.

• Semiconductors Laboratory, Department of Physics, GND University, Amritsar 143005, India

autor

Mian M.

• Semiconductors Laboratory, Department of Physics, GND University, Amritsar 143005, India

Bibliografia

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).