Publication detail

Dilatometric and Positron Anihilation Lifetime Spectroscopic Studies on Amorphous and Polycrystalline Selenium

Year: 2003

Type of publication: ostatní - přednáška nebo poster

Name of source: Conference on Non-Crystalline Inorganic Materials, poster

Publisher name: University of Bonn

Place:

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Titles:

Language	Name	Abstract	Keywords
cze			dilatometrie, amorfní selen, polykrystalický selen
eng	Dilatometric and Positron Anihilation Lifetime Spectroscopic Studies on Amorphous and Polycrystalline Selenium	Length dilatometry (L-DIL) measurements and positron annihilation lifetime spectroscopy (PALS) studies on both the amorphous selenium (a-Se) and the polycrystalline selenium (pc-Se) over wide temperature ranges have been carried out with aim to compare the relevant quantities as a function of temperature. Whereas the basic aspects of thermal macroscopic properties such as the length or correspondingly, the macroscopic volume, are relatively well known, the annihilation behavior of positron e+ or positronium, i.e., a bound system of positron and electron, Ps = (e+ ... e-), in dependence on temperature is a relatively novel technique allowing for deeper insight into the electron density distribution in condensed matter.	dilatometry, amorphous and polycrystalline selenium

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