Calorimetry of hydrogen desorption from a-Si nanoparticles
| dc.contributor.author | Farjas Silva, Jordi | cat |
| dc.contributor.author | Das, D. | cat |
| dc.contributor.author | Fort, J. | cat |
| dc.contributor.author | Roura Grabulosa, Pere | cat |
| dc.contributor.author | Bertrán Serra, Enric | cat |
| dc.date.accessioned | 2009-12-29T11:06:23Z | |
| dc.date.available | 2009-12-29T11:06:23Z | |
| dc.date.issued | 2002 | cat |
| dc.description.abstract | The process of hydrogen desorption from amorphous silicon (a-Si) nanoparticles grown by plasma-enhanced chemical vapor deposition (PECVD) has been analyzed by differential scanning calorimetry (DSC), mass spectrometry, and infrared spectroscopy, with the aim of quantifying the energy exchanged. Two exothermic peaks centered at 330 and 410 C have been detected with energies per H atom of about 50 meV. This value has been compared with the results of theoretical calculations and is found to agree with the dissociation energy of Si-H groups of about 3.25 eV per H atom, provided that the formation energy per dangling bond in a-Si is about 1.15 eV. It is shown that this result is valid for a-Si:H films, too. | cat |
| dc.format.extent | 5 p. | cat |
| dc.format.mimetype | application/pdf | eng |
| dc.identifier.idgrec | 503422 | ca |
| dc.identifier.issn | 0163-1829 | cat |
| dc.identifier.uri | https://hdl.handle.net/2445/10641 | |
| dc.language.iso | eng | eng |
| dc.publisher | The American Physical Society | cat |
| dc.relation.isformatof | Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevB.65.115403 | cat |
| dc.relation.ispartof | Physical Review B, 2002, vol. 65, num. 11, p. 115403-115407 | cat |
| dc.relation.uri | http://dx.doi.org/10.1103/PhysRevB.65.115403 | |
| dc.rights | (c) The American Physical Society, 2002 | cat |
| dc.rights.accessRights | info:eu-repo/semantics/openAccess | |
| dc.source | Articles publicats en revistes (Física Aplicada) | |
| dc.subject.classification | Ciència dels materials | cat |
| dc.subject.classification | Semiconductors amorfs | cat |
| dc.subject.classification | Pel·lícules fines | cat |
| dc.subject.other | Structure of solids and liquids | eng |
| dc.subject.other | Materials science | eng |
| dc.subject.other | Surfaces and interfaces | eng |
| dc.subject.other | Thin films | eng |
| dc.title | Calorimetry of hydrogen desorption from a-Si nanoparticles | cat |
| dc.type | info:eu-repo/semantics/article | cat |
| dc.type | info:eu-repo/semantics/publishedVersion |
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