Shielded hydrogen passivation: a potential in‐line passivation process
Shielded hydrogen passivation (SHP) is a recently developed technique for introducing atomic hydrogen into materials and it offers significant advantages over the other hydrogenation techniques. Hydrogen de‐activation of boron followed by electrochemical CV profiling was used to demonstrate that sub...
| Main Authors: | , , , , , , |
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| Format: | Journal article |
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Wiley‐VCH Verlag
2017
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| _version_ | 1797058574397997056 |
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| author | Bourret-Sicotte, G Hamer, P Bonilla, R Collett, K Ciesla, A Colwell, J Wilshaw, P |
| author_facet | Bourret-Sicotte, G Hamer, P Bonilla, R Collett, K Ciesla, A Colwell, J Wilshaw, P |
| author_sort | Bourret-Sicotte, G |
| collection | OXFORD |
| description | Shielded hydrogen passivation (SHP) is a recently developed technique for introducing atomic hydrogen into materials and it offers significant advantages over the other hydrogenation techniques. Hydrogen de‐activation of boron followed by electrochemical CV profiling was used to demonstrate that substantial quantities of atomic hydrogen can permeate though palladium/silver alloy foils which are 10 µm thick. It is thought that such thickness will be sufficient to withstand pressures of up to 1 atmosphere allowing passivation in an in‐line process. Further, it is shown that poisoning of the foil by using sulphur increases the flux of atomic hydrogen released. SHP delivers extremely good passivation of SiO2‐Si interfaces, as demonstrated by using thermally oxidised 1 Ω‐cm, n‐type silicon where the lifetime, at 1015 cm−3 injection level, was found to increase from 12 to 1.05 ms after SHP processing. Upon application of corona charge, the lifetime further increased to 6.3 ms, equivalent to SRV ≤ 0.17 cm s−1. |
| first_indexed | 2024-03-06T19:52:14Z |
| format | Journal article |
| id | oxford-uuid:24557e4c-f40c-4845-81f3-2a2601b19705 |
| institution | University of Oxford |
| last_indexed | 2024-03-06T19:52:14Z |
| publishDate | 2017 |
| publisher | Wiley‐VCH Verlag |
| record_format | dspace |
| spelling | oxford-uuid:24557e4c-f40c-4845-81f3-2a2601b197052022-03-26T11:49:29ZShielded hydrogen passivation: a potential in‐line passivation processJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:24557e4c-f40c-4845-81f3-2a2601b19705Symplectic Elements at OxfordWiley‐VCH Verlag2017Bourret-Sicotte, GHamer, PBonilla, RCollett, KCiesla, AColwell, JWilshaw, PShielded hydrogen passivation (SHP) is a recently developed technique for introducing atomic hydrogen into materials and it offers significant advantages over the other hydrogenation techniques. Hydrogen de‐activation of boron followed by electrochemical CV profiling was used to demonstrate that substantial quantities of atomic hydrogen can permeate though palladium/silver alloy foils which are 10 µm thick. It is thought that such thickness will be sufficient to withstand pressures of up to 1 atmosphere allowing passivation in an in‐line process. Further, it is shown that poisoning of the foil by using sulphur increases the flux of atomic hydrogen released. SHP delivers extremely good passivation of SiO2‐Si interfaces, as demonstrated by using thermally oxidised 1 Ω‐cm, n‐type silicon where the lifetime, at 1015 cm−3 injection level, was found to increase from 12 to 1.05 ms after SHP processing. Upon application of corona charge, the lifetime further increased to 6.3 ms, equivalent to SRV ≤ 0.17 cm s−1. |
| spellingShingle | Bourret-Sicotte, G Hamer, P Bonilla, R Collett, K Ciesla, A Colwell, J Wilshaw, P Shielded hydrogen passivation: a potential in‐line passivation process |
| title | Shielded hydrogen passivation: a potential in‐line passivation process |
| title_full | Shielded hydrogen passivation: a potential in‐line passivation process |
| title_fullStr | Shielded hydrogen passivation: a potential in‐line passivation process |
| title_full_unstemmed | Shielded hydrogen passivation: a potential in‐line passivation process |
| title_short | Shielded hydrogen passivation: a potential in‐line passivation process |
| title_sort | shielded hydrogen passivation a potential in line passivation process |
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