@inproceedings{a1d61a9417494418a4e91378e08aedf7,
title = "Studies of gamma radiation induced effects in ge-rich chalcogenide thin films",
abstract = "Ge40Se60 thin films (100 nm thick) were gamma-irradiated in a 60Co (Eav = 1.25 MeV) radioisotope capsule at a dose rate of 12 rad/sec and applied γ-ray doses ranging from 20 krad(Si) to 3 Mrad(Si). The effect of-radiation over the structure is well evidenced on the Raman spectra of the films; there is a change in the relative intensity of the Raman bands which suggests a disorder increase for the low doses (< 200 krad) and some structural ordering for the higher doses. The relative ratio of the edge-sharing/corner-sharing structural units increases which implies some opening of the structure after radiation. A significant increase of the photoconductivity-to-dark conductivity ratio upon irradiation has been observed which confirms the conclusion for the γ-induced ordering. These effects are expected to be used in a radiation sensor in which both-the radiation induced changes in the materials' structure and Ag diffusion are applied.",
keywords = "Dark and photoconductivity, Ge-Se thin films, Structural changes, γ-irradiation",
author = "Diana Nesheva and Mahesh Ailavajhala and Ping Chen and Tenne, {Dmitri A.} and Hugh Barnaby and Maria Mitkova",
note = "Publisher Copyright: {\textcopyright} 2012 RAD Conference Proceedings. All rights reserved.; 1st International Conference on Radiation and Dosimetry in Various Fields of Research, RAD 2012 ; Conference date: 25-04-2012 Through 27-04-2012",
year = "2012",
language = "English (US)",
series = "RAD Conference Proceedings",
publisher = "RAD Association",
pages = "19--22",
editor = "Goran Ristic",
booktitle = "RAD 2012 - 1st International Conference on Radiation and Dosimetry in Various Fields of Research, Proceedings",
}