Matches in SemOpenAlex for { <https://semopenalex.org/work/W1004048888> ?p ?o ?g. }
Showing items 1 to 80 of
80
with 100 items per page.
- W1004048888 endingPage "1764" @default.
- W1004048888 startingPage "1759" @default.
- W1004048888 abstract "GaN-based LEDs often use polymer material as chip coating. The most used polymer coatings are siloxane-based materials such as poly(methyl-phenyl-silixane) – PMPS – or poly(dimethylsiloxane) — PDMS. Although their thermal properties offer great possibilities to justify their integration in optoelectronic devices, pellicular effect may occur. This paper points out a pellicular failure mechanism occurring in MQW GaN-based LED submitted to active storage (1500 h/30 mA/85 °C) determined from their environment stresses. Before aging, an absorption/reemission fluorescence process has been extracted. By performing fluorescence analysis, we have found out the cause of such mechanism coming from silicone oil (polymer coating). Additional physico-chemical analyses, consisting of 1H NMR and MALDI-TOF mass spectrometry, have been investigated to work out the origin of the absorption/reemission process. The presence of low molecular weight molecules (LMWM) playing the role of fluorophore molecules is responsible for it. After aging, 65% optical power losses have been reported. A combination of electro-optical characterizations and physico-chemical analyses has led to the main failure mechanism extraction that is the molecular change of silicone oil activated by photothermal phenomenon. Such pellicular failure mechanism has been suggested to be linked to polymerization or cross-linking of silicone oil usually present in GaN-based LEDs." @default.
- W1004048888 created "2016-06-24" @default.
- W1004048888 creator A5043837649 @default.
- W1004048888 creator A5059725040 @default.
- W1004048888 creator A5065812013 @default.
- W1004048888 creator A5066626866 @default.
- W1004048888 date "2015-08-01" @default.
- W1004048888 modified "2023-10-16" @default.
- W1004048888 title "Photothermal activated failure mechanism in polymer-based packaging of low power InGaN/GaN MQW LED under active storage" @default.
- W1004048888 cites W1555103730 @default.
- W1004048888 cites W1990610143 @default.
- W1004048888 cites W1992262791 @default.
- W1004048888 cites W2006459676 @default.
- W1004048888 cites W2033134672 @default.
- W1004048888 cites W2033834646 @default.
- W1004048888 cites W2059593047 @default.
- W1004048888 cites W2072995640 @default.
- W1004048888 cites W2073454089 @default.
- W1004048888 cites W2117039407 @default.
- W1004048888 cites W2155138961 @default.
- W1004048888 cites W2166163692 @default.
- W1004048888 cites W2622250012 @default.
- W1004048888 cites W3021705304 @default.
- W1004048888 cites W3151652689 @default.
- W1004048888 cites W567365767 @default.
- W1004048888 cites W613540576 @default.
- W1004048888 doi "https://doi.org/10.1016/j.microrel.2015.06.145" @default.
- W1004048888 hasPublicationYear "2015" @default.
- W1004048888 type Work @default.
- W1004048888 sameAs 1004048888 @default.
- W1004048888 citedByCount "0" @default.
- W1004048888 crossrefType "journal-article" @default.
- W1004048888 hasAuthorship W1004048888A5043837649 @default.
- W1004048888 hasAuthorship W1004048888A5059725040 @default.
- W1004048888 hasAuthorship W1004048888A5065812013 @default.
- W1004048888 hasAuthorship W1004048888A5066626866 @default.
- W1004048888 hasConcept C125287762 @default.
- W1004048888 hasConcept C159985019 @default.
- W1004048888 hasConcept C171250308 @default.
- W1004048888 hasConcept C176666156 @default.
- W1004048888 hasConcept C182606246 @default.
- W1004048888 hasConcept C192562407 @default.
- W1004048888 hasConcept C2777742735 @default.
- W1004048888 hasConcept C2779769944 @default.
- W1004048888 hasConcept C2781448156 @default.
- W1004048888 hasConcept C49040817 @default.
- W1004048888 hasConcept C521977710 @default.
- W1004048888 hasConceptScore W1004048888C125287762 @default.
- W1004048888 hasConceptScore W1004048888C159985019 @default.
- W1004048888 hasConceptScore W1004048888C171250308 @default.
- W1004048888 hasConceptScore W1004048888C176666156 @default.
- W1004048888 hasConceptScore W1004048888C182606246 @default.
- W1004048888 hasConceptScore W1004048888C192562407 @default.
- W1004048888 hasConceptScore W1004048888C2777742735 @default.
- W1004048888 hasConceptScore W1004048888C2779769944 @default.
- W1004048888 hasConceptScore W1004048888C2781448156 @default.
- W1004048888 hasConceptScore W1004048888C49040817 @default.
- W1004048888 hasConceptScore W1004048888C521977710 @default.
- W1004048888 hasIssue "9-10" @default.
- W1004048888 hasLocation W10040488881 @default.
- W1004048888 hasLocation W10040488882 @default.
- W1004048888 hasOpenAccess W1004048888 @default.
- W1004048888 hasPrimaryLocation W10040488881 @default.
- W1004048888 hasRelatedWork W1999386415 @default.
- W1004048888 hasRelatedWork W2033845157 @default.
- W1004048888 hasRelatedWork W2125027697 @default.
- W1004048888 hasRelatedWork W3046719367 @default.
- W1004048888 hasRelatedWork W3110819540 @default.
- W1004048888 hasRelatedWork W3142311719 @default.
- W1004048888 hasRelatedWork W4244396274 @default.
- W1004048888 hasRelatedWork W4280492383 @default.
- W1004048888 hasRelatedWork W4293002997 @default.
- W1004048888 hasRelatedWork W4328099285 @default.
- W1004048888 hasVolume "55" @default.
- W1004048888 isParatext "false" @default.
- W1004048888 isRetracted "false" @default.
- W1004048888 magId "1004048888" @default.
- W1004048888 workType "article" @default.