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Materials modification by electronic excitation

Stoneham, AM; Itoh, N; (2000) Materials modification by electronic excitation. Applied Surface Science , 168 (1-4) 186 - 193. 10.1016/S0169-4332(00)00587-0. Green open access

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Electronic excitation by lasers or electron beams can modify the properties of materials. The changes are not just due to heat, nor do they result from the well-known collision dynamics of much radiation damage. Everyday examples of modification by electronic excitation include photography, and photochromics (such as sunglasses) which change colour. In the last few years it has become clear that excitation can offer novel types of modification, with better-controlled changes. The field has evolved through a mix of basic science, of new laser and electron beam tools, and of new needs from microelectronics, photonics and nanotechnology. Underlying this development are some common themes which integrate the basic science and its applications. These include especially the ideas of energy localisation and charge localisation. There are detailed comparisons of experiment and theory for halides, but then is a wealth of information for other materials. From this, we identify ways to connect understanding to technological needs, like selective removal of material, controlled changes, altering the balance between process steps, and possibilities of quantum control. The field is reviewed in full in our recent book [N. Itoh, A.M. Stoneham, Materials Modification by Electronic Excitation, Cambridge University Press, Cambridge, 2000]. (C) 2000 Elsevier Science B.V. All rights reserved.

Type: Article
Title: Materials modification by electronic excitation
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/S0169-4332(00)00587-0
Publisher version: http://dx.doi.org/10.1016/S0169-4332(00)00587-0
Language: English
Additional information: Text made available to UCL Discovery by kind permission of Elsevier B.V., 2012. Paper published as part of a special issue: Proceedings of the European Materials Research, Strasbourg, France. Issue edited by Abdelilah Slaoui
Keywords: Excited states, colour change, adhesion, writing gratings, surface modification, SCANNING-TUNNELING-MICROSCOPY, STIMULATED MODIFICATION, POINT-DEFECTS, BOND BREAKING, LIGHT-PULSES, SURFACES, SI(100), SI(111)-(7X7), DESORPTION, ADATOMS
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/129085
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