Adel Eldenglawey

Structural, optical and electrical, properties of As-Se-Tl films

Physical properties of As-Se-Tl films

• Broschiertes Buch

Produktbeschreibung

Bulk alloys of A s-Se-Tl were synthesized by weighting out suitable proportions of the required compositions with purity 5N. Melting them up to 875 C for 16 hours followed by rapid quenching in ice water. Thermal evaporation technique was used to prepare A s-Se-Tl films on glass substrates. The produced films have 200 nm thickness. X-ray diffraction and differential scanning calorimetry were used to investigate the film structural properties. The nature of the produced alloys, Glass transition, crystallization temperature and melting point as well as the permittivity of the as-deposited and annealed films up to 373 K were studied as function of Tl-content. Optical constants like dispersion energy, high frequency dielectric constant, lattice dielectric constant, and the oscillator energy were determined. Composition effect on the dc electrical properties was investigated in the temperature range (175-375)K. Hopping conduction dominates at low temperature region (173-300) K. At thehigh temperature region (300-373) K, band conduction occurs. Seebeck coefficient, a.c conductivity and related constants were determined.

Produktdetails

• Verlag: LAP Lambert Academic Publishing
• Seitenzahl: 152
• Erscheinungstermin: 24. Januar 2013
• Englisch
• Abmessung: 220mm x 150mm x 10mm
• Gewicht: 244g
• ISBN-13: 9783844398434
• ISBN-10: 3844398430
• Artikelnr.: 37475840

Autorenporträt

Ph.d, Assist. Prof., Phys. Dept. Fac. of Sci., South Valley ¿¿¿Univ.83523,Qena, Egypt as permanent job. Current ¿job is: Chairman of ¿Phys. Dept. Fac. of Appl. Med. ¿Sci., ¿Turabah city, B.O: ¿¿311¿¿, Taif Univ. K.S.A. ¿Editorial member and reviewer. Interests ¿are inorg., ¿org. semicond.,Bulk and film, ¿Solar cell, ¿renewable energy, nano material