FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2063493089> ?p ?o ?g. }

• W2063493089 endingPage "192" @default.
• W2063493089 startingPage "187" @default.
• W2063493089 abstract "Abstract Photoluminescence (PL) of bismuth doped silicon dioxide excited by UV excimer lasers (ArF — 193 nm, KrF — 248 nm) and a green light laser diode (532 nm) is studied in a wide spectral band at temperatures ranging from 12 to 750 K. Two types of samples are investigated: unfused, 100 μm in thickness amorphous layer immediately deposited on the inner surface of silica substrate tube, and the same material after profusion resulted from tube collapsing to a rod by external heating. PL bands centered at 620–650 nm, 820 nm and 1400 nm wavelengths are observed in both fused and unfused samples. Under excitation by the green laser diode decay time constants for 650 nm (orange) and 1400 nm (NIR) PL bands measured at room temperature amount 3 μs and 600 μs respectively. These rather long decay times point to partly forbidden intra-center electron transitions. PL intensities of the orange and NIR bands are not temperature dependent within 12–450 K range. At higher temperatures the orange band manifests an intra-center thermal quenching, activation energy and frequency factor being 0.42 ± 0.04 eV and 5·10 9  s − 1 respectively, while intensity of the NIR band weakly depends on temperature up to 700 K. Electron-hole recombination excitation mechanism is found to contribute to the orange, but not to the NIR PL band under UV laser pumping. The specific feature of orange PL excited by recombination is the magnitude of decay time constant being about milliseconds at temperature of 12 K and decreasing with the temperature increase. Localized state ionization and two-photon absorption of intense UV light excite electron-hole pairs in silica host. Some bismuth defects serve as traps for the electrons, while holes transmute into self-trapped state thus generating self-trapped holes (STHs). Thermally activated escape of the STHs followed by their subsequent recombination with trapped electrons forms the mechanism to transfer the excitation to particular bismuth defects responsible for orange PL. At the same time no signature of the impact of such recombination process on the excitation of NIR PL is observed. This permits one to conclude that the nature of bismuth defects responsible for these two PL bands varies, and these two types of defects are available in both fused and infused silicon dioxides." @default.
• W2063493089 created "2016-06-24" @default.
• W2063493089 creator A5018174313 @default.
• W2063493089 creator A5032308329 @default.
• W2063493089 creator A5035998749 @default.
• W2063493089 creator A5068042262 @default.
• W2063493089 date "2013-03-01" @default.
• W2063493089 modified "2023-09-24" @default.
• W2063493089 title "Intra-center and recombination luminescence of bismuth defects in fused and unfused amorphous silica fabricated by SPCVD" @default.
• W2063493089 cites W1968830836 @default.
• W2063493089 cites W1971017040 @default.
• W2063493089 cites W1981863913 @default.
• W2063493089 cites W1982606999 @default.
• W2063493089 cites W1989875051 @default.
• W2063493089 cites W2008098943 @default.
• W2063493089 cites W2033452881 @default.
• W2063493089 cites W2052886869 @default.
• W2063493089 cites W2064518665 @default.
• W2063493089 cites W2070596326 @default.
• W2063493089 cites W2090448863 @default.
• W2063493089 cites W2096051478 @default.
• W2063493089 cites W2099726109 @default.
• W2063493089 doi "https://doi.org/10.1016/j.jnoncrysol.2012.12.035" @default.
• W2063493089 hasPublicationYear "2013" @default.
• W2063493089 type Work @default.
• W2063493089 sameAs 2063493089 @default.
• W2063493089 citedByCount "4" @default.
• W2063493089 countsByYear W20634930892013 @default.
• W2063493089 countsByYear W20634930892015 @default.
• W2063493089 countsByYear W20634930892017 @default.
• W2063493089 countsByYear W20634930892022 @default.
• W2063493089 crossrefType "journal-article" @default.
• W2063493089 hasAuthorship W2063493089A5018174313 @default.
• W2063493089 hasAuthorship W2063493089A5032308329 @default.
• W2063493089 hasAuthorship W2063493089A5035998749 @default.
• W2063493089 hasAuthorship W2063493089A5068042262 @default.
• W2063493089 hasConcept C104317684 @default.
• W2063493089 hasConcept C127413603 @default.
• W2063493089 hasConcept C148869448 @default.
• W2063493089 hasConcept C156695909 @default.
• W2063493089 hasConcept C159985019 @default.
• W2063493089 hasConcept C185592680 @default.
• W2063493089 hasConcept C191897082 @default.
• W2063493089 hasConcept C192562407 @default.
• W2063493089 hasConcept C2779463800 @default.
• W2063493089 hasConcept C2993056060 @default.
• W2063493089 hasConcept C3020492233 @default.
• W2063493089 hasConcept C42360764 @default.
• W2063493089 hasConcept C49040817 @default.
• W2063493089 hasConcept C533668322 @default.
• W2063493089 hasConcept C55493867 @default.
• W2063493089 hasConcept C56052488 @default.
• W2063493089 hasConcept C8010536 @default.
• W2063493089 hasConceptScore W2063493089C104317684 @default.
• W2063493089 hasConceptScore W2063493089C127413603 @default.
• W2063493089 hasConceptScore W2063493089C148869448 @default.
• W2063493089 hasConceptScore W2063493089C156695909 @default.
• W2063493089 hasConceptScore W2063493089C159985019 @default.
• W2063493089 hasConceptScore W2063493089C185592680 @default.
• W2063493089 hasConceptScore W2063493089C191897082 @default.
• W2063493089 hasConceptScore W2063493089C192562407 @default.
• W2063493089 hasConceptScore W2063493089C2779463800 @default.
• W2063493089 hasConceptScore W2063493089C2993056060 @default.
• W2063493089 hasConceptScore W2063493089C3020492233 @default.
• W2063493089 hasConceptScore W2063493089C42360764 @default.
• W2063493089 hasConceptScore W2063493089C49040817 @default.
• W2063493089 hasConceptScore W2063493089C533668322 @default.
• W2063493089 hasConceptScore W2063493089C55493867 @default.
• W2063493089 hasConceptScore W2063493089C56052488 @default.
• W2063493089 hasConceptScore W2063493089C8010536 @default.
• W2063493089 hasLocation W20634930891 @default.
• W2063493089 hasOpenAccess W2063493089 @default.
• W2063493089 hasPrimaryLocation W20634930891 @default.
• W2063493089 hasRelatedWork W1633207664 @default.
• W2063493089 hasRelatedWork W1964656625 @default.
• W2063493089 hasRelatedWork W2018675753 @default.
• W2063493089 hasRelatedWork W2063493089 @default.
• W2063493089 hasRelatedWork W2078026187 @default.
• W2063493089 hasRelatedWork W2924400592 @default.
• W2063493089 hasRelatedWork W2945565105 @default.
• W2063493089 hasRelatedWork W58409007 @default.
• W2063493089 hasRelatedWork W74214381 @default.
• W2063493089 hasRelatedWork W1994750229 @default.
• W2063493089 hasVolume "363" @default.
• W2063493089 isParatext "false" @default.
• W2063493089 isRetracted "false" @default.
• W2063493089 magId "2063493089" @default.
• W2063493089 workType "article" @default.