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Hydrogen related effects in a-Si:H studied by photothermal deflection spectroscopy

✍ Scribed by J. Serra; J. Andreu; G. Sardin; C. Roch; J.M. Asensi; J. Bertomeu; J. Esteve


Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
240 KB
Volume
170
Category
Article
ISSN
0921-4526

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✦ Synopsis


A study of thermal annealing of a-Si: H samples between 300 and 600Β°C has been carried out. At increasing annealing temperatures, the sub-gap absorption measured by PDS increases showing two inflections, centered at 375 and 550Β°C. The hydrogen content measured by thermal desorption spectroscopy evolves in the same temperature range, whereas the evolution of the hydrogen content deduced from the IR transmission spectra differs, decreasing sooner and vanishing already at about 450Β°C.


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