Crystal growth and characterization of PbI 2 ‐AgI binary system | Zendy

Pokhrel S. | Zendy; Dhakshinamoorthy A. | Zendy; Sundaram R. | Zendy; Nagaraja K. S. | Zendy

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Crystal growth and characterization of PbI 2 ‐AgI binary system

Author(s) -

Pokhrel S.,

Dhakshinamoorthy A.,

Sundaram R.,

Nagaraja K. S.

Publication year - 2005

Publication title -

crystal research and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.377

H-Index - 64

eISSN - 1521-4079

pISSN - 0232-1300

DOI - 10.1002/crat.200410424

Subject(s) - monoclinic crystal system , crystal (programming language) , binary system , electrical resistivity and conductivity , crystallography , materials science , activation energy , sintering , analytical chemistry (journal) , atmospheric temperature range , characterization (materials science) , conductivity , chemistry , crystal structure , binary number , thermodynamics , nanotechnology , chromatography , metallurgy , physics , arithmetic , mathematics , computer science , electrical engineering , programming language , engineering

The crystals of the binary system PbI 2 ‐AgI (PIAI) were obtained by heating the mixture of individual PbI 2 (PI) and AgI (AI) placed at 30° angle in the horizontal tubular furnace of variable temperature zone. The crystals were characterized by powder XRD, TG/DTA, FT‐IR and SEM. The 3.37% weight loss in the sample after heating at 853 K is due to the presence of water molecules absorbed (3446 cm –1 ) by the crystals during sintering and cooling process. The cell parameters of the crystal were determined using the powder X‐ray data. The PbI 2 ‐AgI crystallizes in monoclinic system a = 10.799 (±0.009), b = 7.492 (±0.004), c = 6.929(±0.004) Å and α = 90°, β = 108.04(±0.073) γ = 90°, V = 533.18 Å 3 . The electrical conductivity measurements of the crystals showed a sudden change in the current value at the temperature range 385–393 K. The activation energy before and after the drift was found to be 0.49 and 0.35 eV respectively. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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