Matches in SemOpenAlex for { <https://semopenalex.org/work/W2098101068> ?p ?o ?g. }
- W2098101068 endingPage "22" @default.
- W2098101068 startingPage "14" @default.
- W2098101068 abstract "The stretched exponential analysis of the photoluminescence (PL) decay curves of the oxygen-sensitive dye Pt octaethylporphyrin (PtOEP) embedded in a polystyrene (PS) film and used in gas-phase oxygen, dissolved oxygen (DO), glucose, and lactate sensors is discussed. Light emitting diodes (LEDs) and organic LEDs (OLEDs) served as the pulsed excitation sources for the PL. Typically, the stretched exponential analysis resulted in excellent fits of the oxygen-quenched PL decay curves, superior to the single exponential analysis (including an offset) and other models, in particular at the higher oxygen levels. While some previous studies of gas-phase oxygen sensors analyzed the decay curves with a single value of the stretching factor β (which was not suitable in this work), and other studies used the product of a single exponential and a stretched exponential with a fixed β, in this study only the stretched exponential term was used with β as a variable. As a result, β was found to decrease with increasing O2 concentration ([O2]), from β = 1, i.e., a simple exponential decay, at gas-phase [O2] = 0 and [DO] = 0. The effect of doping the PtOEP:PS films with 360 nm titania particles (which enhance the PL) on the data analysis was also examined. In general, the TiO2 increased the PL decay time and β. The results indicate that a distribution of O2:dye collision rates, induced by the microheterogeneity of the sensor films, is responsible for the non-exponential decay kinetics. The [O2]-dependent β is possibly associated with shallow multiple quencher trapping sites in the PS matrix that affect the frequency of dye:O2 collisions. The TiO2 particles may possibly increase O2 trapping at their surface, reducing the effective concentration of O2 molecules that collide with the dye, and thus increasing the PL decay time and β. Additionally, the long-term stability, data analysis, and detection sensitivity of the DO sensor during and following one-year aging, with the sensing film constantly immersed in water, are described. The findings impact commercial PL-based DO sensors." @default.
- W2098101068 created "2016-06-24" @default.
- W2098101068 creator A5019506647 @default.
- W2098101068 creator A5079467679 @default.
- W2098101068 creator A5083116004 @default.
- W2098101068 creator A5090043732 @default.
- W2098101068 date "2010-04-08" @default.
- W2098101068 modified "2023-10-18" @default.
- W2098101068 title "Data analysis and aging in phosphorescent oxygen-based sensors" @default.
- W2098101068 cites W1965059771 @default.
- W2098101068 cites W1968759897 @default.
- W2098101068 cites W1977690954 @default.
- W2098101068 cites W1985287444 @default.
- W2098101068 cites W1986983825 @default.
- W2098101068 cites W1990945042 @default.
- W2098101068 cites W1991859709 @default.
- W2098101068 cites W1992755218 @default.
- W2098101068 cites W1992858579 @default.
- W2098101068 cites W1995751182 @default.
- W2098101068 cites W2018449285 @default.
- W2098101068 cites W2023809101 @default.
- W2098101068 cites W2024919557 @default.
- W2098101068 cites W2025131346 @default.
- W2098101068 cites W2026065469 @default.
- W2098101068 cites W2032334841 @default.
- W2098101068 cites W2032765863 @default.
- W2098101068 cites W2036754875 @default.
- W2098101068 cites W2037538377 @default.
- W2098101068 cites W2040551257 @default.
- W2098101068 cites W2041830715 @default.
- W2098101068 cites W2042511596 @default.
- W2098101068 cites W2044081881 @default.
- W2098101068 cites W2048857255 @default.
- W2098101068 cites W2063492496 @default.
- W2098101068 cites W2065277123 @default.
- W2098101068 cites W2071460506 @default.
- W2098101068 cites W2073394339 @default.
- W2098101068 cites W2075059146 @default.
- W2098101068 cites W2076683030 @default.
- W2098101068 cites W2085681584 @default.
- W2098101068 cites W2086356224 @default.
- W2098101068 cites W2088560807 @default.
- W2098101068 cites W2090712802 @default.
- W2098101068 cites W2091570098 @default.
- W2098101068 cites W2096842904 @default.
- W2098101068 cites W2117720163 @default.
- W2098101068 doi "https://doi.org/10.1016/j.snb.2010.02.028" @default.
- W2098101068 hasPublicationYear "2010" @default.
- W2098101068 type Work @default.
- W2098101068 sameAs 2098101068 @default.
- W2098101068 citedByCount "24" @default.
- W2098101068 countsByYear W20981010682012 @default.
- W2098101068 countsByYear W20981010682013 @default.
- W2098101068 countsByYear W20981010682014 @default.
- W2098101068 countsByYear W20981010682015 @default.
- W2098101068 countsByYear W20981010682017 @default.
- W2098101068 countsByYear W20981010682018 @default.
- W2098101068 countsByYear W20981010682020 @default.
- W2098101068 countsByYear W20981010682021 @default.
- W2098101068 countsByYear W20981010682022 @default.
- W2098101068 crossrefType "journal-article" @default.
- W2098101068 hasAuthorship W2098101068A5019506647 @default.
- W2098101068 hasAuthorship W2098101068A5079467679 @default.
- W2098101068 hasAuthorship W2098101068A5083116004 @default.
- W2098101068 hasAuthorship W2098101068A5090043732 @default.
- W2098101068 hasConcept C113196181 @default.
- W2098101068 hasConcept C120665830 @default.
- W2098101068 hasConcept C121332964 @default.
- W2098101068 hasConcept C134306372 @default.
- W2098101068 hasConcept C148898269 @default.
- W2098101068 hasConcept C150759737 @default.
- W2098101068 hasConcept C151376022 @default.
- W2098101068 hasConcept C171250308 @default.
- W2098101068 hasConcept C176666156 @default.
- W2098101068 hasConcept C178790620 @default.
- W2098101068 hasConcept C180188523 @default.
- W2098101068 hasConcept C181817918 @default.
- W2098101068 hasConcept C185544564 @default.
- W2098101068 hasConcept C185592680 @default.
- W2098101068 hasConcept C18903297 @default.
- W2098101068 hasConcept C192562407 @default.
- W2098101068 hasConcept C2777924906 @default.
- W2098101068 hasConcept C2779227376 @default.
- W2098101068 hasConcept C33923547 @default.
- W2098101068 hasConcept C43617362 @default.
- W2098101068 hasConcept C49040817 @default.
- W2098101068 hasConcept C540031477 @default.
- W2098101068 hasConcept C62520636 @default.
- W2098101068 hasConcept C85080765 @default.
- W2098101068 hasConcept C86803240 @default.
- W2098101068 hasConcept C89169090 @default.
- W2098101068 hasConcept C91881484 @default.
- W2098101068 hasConceptScore W2098101068C113196181 @default.
- W2098101068 hasConceptScore W2098101068C120665830 @default.
- W2098101068 hasConceptScore W2098101068C121332964 @default.
- W2098101068 hasConceptScore W2098101068C134306372 @default.
- W2098101068 hasConceptScore W2098101068C148898269 @default.
- W2098101068 hasConceptScore W2098101068C150759737 @default.