Positron lifetime spectroscopy with optical excitation: case study of natural diamond
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2012-03-30
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Language
en
Pages
16
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New Journal of Physics, Volume 14, pp. 1-16
Abstract
In this paper, we report positron lifetime results obtained under high-power steady-state and transient optical excitation. We present a model for analysing the results. The method has been applied to vacancy clusters in natural diamond, for which we self-consistently analyse optoelectronic constants such as optical absorption cross-section and hole recombination cross-section. The temperature dependences of transient and steady-state measurements are studied, suggesting the possibility of analysing the positron trapping to extended defects and vacancy clusters in semiconductors.Description
Keywords
diamond, optical transient, positron specotroscpy
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Citation
Mäki, J-M, Kuittinen, T, Korhonen, E & Tuomisto, F 2012, ' Positron lifetime spectroscopy with optical excitation: case study of natural diamond ', New Journal of Physics, vol. 14, 032023, pp. 1-16 . https://doi.org/10.1088/1367-2630/14/3/035023