Influence of annealing on the photodeposition of silver on periodically poled lithium niobate

DC FieldValueLanguage
dc.contributor.authorCarville, N. Craig-
dc.contributor.authorNeumayer, Sabine M.-
dc.contributor.authorManzo, Michele-
dc.contributor.authorRodriguez, Brian J.-
dc.contributor.authoret al.- AIP Publishing LLCen
dc.identifier.citationJournal of Applied Physicsen
dc.description.abstractThe preferential deposition of metal nanoparticles onto periodically poled lithium niobate surfaces, whereby photogenerated electrons accumulate in accordance with local electric fields and reduce metal ions from solution, is known to depend on the intensity and wavelength of the illumination and the concentration of the solution used. Here, it is shown that for identical deposition conditions (wavelength, intensity, concentration), post-poling annealing for 10 h at 200°C modifies the surface reactivity through the reorientation of internal defect fields. Whereas silver nanoparticles deposit preferentially on the +z domains on unannealed crystals, the deposition occurs preferentially along 180° domain walls for annealed crystals. In neither case is the deposition selective; limited deposition occurs also on the unannealed –z domain surface and on both annealed domain surfaces. The observed behavior is attributed to a relaxation of the poling-induced defect frustration mediated by Li+ ion mobility during annealing, which affects the accumulation of electrons, thereby changing the surface reactivity. The evolution of the defect field with temperature is corroborated using Raman spectroscopy.en
dc.description.sponsorshipEuropean Commission - Seventh Framework Programme (FP7)en
dc.description.sponsorshipHigher Education Authorityen
dc.publisherAmerican Institute of Physicsen
dc.rightsThe following article appeared in Journal of Applied Physics, 119 (2016): 054102 and may be found at . The article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.en
dc.subjectCrystal defectsen
dc.subjectDomain wallsen
dc.subjectAtomic force microscopyen
dc.titleInfluence of annealing on the photodeposition of silver on periodically poled lithium niobateen
dc.typeJournal Articleen
dc.statusPeer revieweden
dc.neeo.contributorCarville|N. Craig|aut|-
dc.neeo.contributorNeumayer|Sabine M.|aut|-
dc.neeo.contributorRodriguez|Brian J.|aut|-
dc.neeo.contributoret al.||aut|-
dc.description.othersponsorshipSwedish Scientific Research Councilen
dc.description.othersponsorshipADOPT Linnaeus Centre for Advanced Optics and Photonics, Stockholmen
dc.description.othersponsorshipProgramme for Research in Third Level Institutions (PRTLI) Cycle 5en
dc.description.othersponsorshipEuropean Regional Development Funden
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