Download Applications of Chalcogenides: S, Se, and Te by Gurinder Kaur Ahluwalia PDF

By Gurinder Kaur Ahluwalia

ISBN-10: 3319411888

ISBN-13: 9783319411880

ISBN-10: 331941190X

ISBN-13: 9783319411903

This ebook introduces readers to a variety of functions for parts in crew sixteen of the periodic desk, equivalent to, optical fibers for communique and sensing, X-ray imaging, electrochemical sensors, info garage units, biomedical purposes, photovoltaics and IR detectors, the reason for those makes use of, the longer term scope in their functions, and anticipated advancements to latest applied sciences. Following an introductory part, the e-book is greatly divided into 3 parts—dealing with Sulfur, Selenium, and Tellurium. The sections hide the fundamental constitution of the weather and their compounds in bulk and nanostructured varieties; homes that make those valuable for numerous functions, through purposes and advertisement items. because the international expertise revolution necessitates the hunt for brand spanking new fabrics and extra effective units within the electronics and semiconductor undefined, Applications of Chalcogenides: S, Se, and Te is a perfect booklet for quite a lot of readers in undefined, executive and educational learn amenities having a look past silicon for fabrics utilized in the digital and optoelectronic in addition to biomedical applications.

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Extra resources for Applications of Chalcogenides: S, Se, and Te

Example text

31 Fig. 37 Band structure of trigonal Se II. Band Structure of Trigonal Se The band structure of the model trigonal Se has been calculated self-consistently by WIEN2k using the mBJ potential. The Brillouin zone of trigonal Se is illustrated in Fig. 36. The center of the Brillouin zone is at the Gamma point of the zone. The band structure of trigonal Se is shown in Fig. 37. Density functional calculations with mBJ potential widen the band gap in comparison to the Density functional theory with Generalized Gradient Approximation, as discussed in Chap.

1 Fundamentals of Chalcogenides in Crystalline, Amorphous. . 11 51 Nanostructuring Selenium is a highly important inorganic semiconducting material with large Bohr radius. In addition to its interesting physical properties such as thermoelectric and nonlinear optical responses, high conductivity, and piezoelectric effects [86], Se in appropriate amounts is an essential element for living organisms [87]. Se has been shown to prevent cancer in numerous animal model systems when fed at levels exceeding the nutritional requirement [88].

Tellurium based compounds such as AgInSbTe and GeSbTe, are fragile glass-formers, and widely used in rewritable optical disks and phase-change memory devices. By applying heat, they can be switched between an amorphous glass and a crystalline state. Thereby they can change their optical and electrical properties and provide the storage of information. Phase-change materials of which Ge2Sb2Te5, is a 1 Fundamentals of Chalcogenides in Crystalline, Amorphous. . 43 prototypical example, crystallized at a temperature at about 160  C.

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Applications of Chalcogenides: S, Se, and Te by Gurinder Kaur Ahluwalia

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