Hydrogen related effects in a-Si:H studied by photothermal deflection spectroscopy
β 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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β¦ 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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## Abstract For Abstract see ChemInform Abstract in Full Text.
We have applied a novel technique to combine isothermal deep-level transient spectroscopy (DLTS) with the application of uniaxial compressive stress to studying the structure of a platinum-and hydrogen-related defect, which has a gap state at 0.14 eV below the conduction band in Si. The application