What is it about?
First-principle calculations have been done for the Orthorhombic helical Polyoxymethylene. Electronic density of states calculation gives a value of 6.6 eV as the band gap. Phonon frequencies have been calculated at the Gamma point. Phonon modes show wave numbers ranging from 55 cm -1 to 3020 cm -1 . The value of Dielectric constant has been experimentally determined. The gamma irradiation of the sample causes variations in the electronic and dielectric properties of the material. Keywords: Electronic structure; Dielectric constant; First-principles; Electrical conductivity.
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Why is it important?
Electrical conductivity increases with increase in dosage of irradiation. Percentage of crystallinity increases where as the value of dielectric constant decreases with increase in dosage of irradiation.
Perspectives
Electronic density of states calculation gives a value of 6.6 eV as the band gap. Phonon frequencies have been calculated at the Gamma point. Phonon modes show wave numbers ranging from 55 cm -1 to 3020 cm -1 . The value of Dielectric constant has been experimentally determined. The gamma irradiation of the sample causes variations in the electronic and dielectric properties of the material.
Dr Sreepad H R
Government College (Autonomous), Mandya, India
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This page is a summary of: Radiation induced changes in electronic and dielectric properties of polyoxymethylene, January 2012, American Institute of Physics,
DOI: 10.1063/1.4710241.
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