Dataset.

Glass poling as a substrate surface pre-treatment for in situ metal nanoparticle formation by reduction of metal salt: Supplement information

Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/331815
Digital.CSIC. Repositorio Institucional del CSIC
  • Selvam, Tamil Selvi
  • Pervan, Petar
  • Sancho-Parramon, Jordi
  • Spadaro, Maria Chiara
  • Arbiol, Jordi
  • Janicki, Vesna
6 pages. -- Table 1. Composition of different glass types used as substrates. -- Fig. 1. Comparison of Ψ and Δ spectra for standard sample step and poled region, together with corresponding fits. -- Fig. 2. Au NPs: poled and step region ε2 (a) and corresponding SEM micrographs (b, c). -- Fig. 3. The effect of plasma cleaning: comparison of sample cleaned with plasma upon GP and prior to coating (left) and a standard sample (right). -- Fig. 4 Difference of ε2 for Ag NPs containing layers over poled and step region for Cr containing sample. -- Fig. 5. SEM micrographs: transition between step (upper part) and poled region (lower part) of the sample with higher Ag concentration in the coating (a), protrusion of crystallites from the coating (b), out diffused crystallites (c) and their clustering (d). EDS of step region: at the site of the crystallite (e) and a site next to it (f). -- Fig. 6. The sample coated immediately after poling in vacuum: comparison of Ψ and Δ spectra for step and poled region (a) and b), respectively). -- Fig. 7. Transition between step and poled region of the sample coated immediately after poling in vacuum: from step region with out-diffused Na crystallites to the poled, crystallites free region confirming absence of IE., Peer reviewed
 
DOI: http://hdl.handle.net/10261/331815
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/331815

HANDLE: http://hdl.handle.net/10261/331815
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/331815
 
Ver en: http://hdl.handle.net/10261/331815
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/331815

Dipòsit Digital de Documents de la UAB
oai:ddd.uab.cat:271945
Artículo científico (article). 2022

GLASS POLING AS A SUBSTRATE SURFACE PRE-TREATMENT FOR IN SITU METAL NANOPARTICLE FORMATION BY REDUCTION OF METAL SALT

Dipòsit Digital de Documents de la UAB
  • Selvam, Tamil Selvi
  • Pervan, Petar|||0000-0002-8489-9978
  • Sancho-Parramon, Jordi|||0000-0003-3284-8666
  • Spadaro, Maria Chiara|||0000-0002-6540-0377
  • Arbiol i Cobos, Jordi|||0000-0002-0695-1726
  • Janicki, Vesna|||0000-0001-5066-7688
Metal nanoparticles are used in optical coatings and sensors due to their absorption in optical part of spectrum and its sensitivity to the environment induced by localized surface plasmon resonance. Glass is the most common substrate used for optical coatings. However, its surface does not have optimal properties for coating with metal nanoparticles grown in situ by reduction of metal salt. Glass surface optimization methods may involve environmentally hostile chemicals or processes that have time limited or atmosphere sensitive effects. In this study it is demonstrated and discussed effectiveness, mechanisms and advantages of glass poling as pre-treatment method for improving glass surface properties for maximization of coatings plasmonic performance. Pre-treatment of glass surfaces by poling is highly efficient for the purpose. Glass poling quenches ion exchange between metal ions from the solution and alkali ions from glass, favouring nanoparticles formation. Surface prepared in such way is not affected by ageing in normal atmosphere and is effective even after coating with ultrathin dielectric or Cr layers.




Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/280617
Artículo científico (article). 2022

GLASS POLING AS A SUBSTRATE SURFACE PRE-TREATMENT FOR IN SITU METAL NANOPARTICLE FORMATION BY REDUCTION OF METAL SALT

Digital.CSIC. Repositorio Institucional del CSIC
  • Selvam, Tamil Selvi
  • Pervan, Petar
  • Sancho-Parramon, Jordi
  • Spadaro, Maria Chiara
  • Arbiol, Jordi
  • Janicki, Vesna
Metal nanoparticles are used in optical coatings and sensors due to their absorption in optical part of spectrum and its sensitivity to the environment induced by localized surface plasmon resonance. Glass is the most common substrate used for optical coatings. However, its surface does not have optimal properties for coating with metal nanoparticles grown in situ by reduction of metal salt. Glass surface optimization methods may involve environmentally hostile chemicals or processes that have time limited or atmosphere sensitive effects. In this study it is demonstrated and discussed effectiveness, mechanisms and advantages of glass poling as pre-treatment method for improving glass surface properties for maximization of coatings plasmonic performance. Pre-treatment of glass surfaces by poling is highly efficient for the purpose. Glass poling quenches ion exchange between metal ions from the solution and alkali ions from glass, favouring nanoparticles formation. Surface prepared in such way is not affected by ageing in normal atmosphere and is effective even after coating with ultrathin dielectric or Cr layers., This work was supported by the Croatian Science Foundation [Grant no. IP-2016-06-2168 and DOK-2018-01-3956]. M.C.S. and J.A. acknowledge funding from Generalitat de Catalunya 2017 SGR 327. ICN2 is supported by the Severo Ochoa program from Spanish MINECO [Grant no. SEV-2017-0706] and is funded by the CERCA Programme/Generalitat de Catalunya. M.C.S. has received funding from the post doctoral fellowship Juan de la Cierva Incorporation from MICINN (JCI-2019) and the Severo Ochoa programme., Peer reviewed




Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/331815
Dataset. 2022

GLASS POLING AS A SUBSTRATE SURFACE PRE-TREATMENT FOR IN SITU METAL NANOPARTICLE FORMATION BY REDUCTION OF METAL SALT: SUPPLEMENT INFORMATION

Digital.CSIC. Repositorio Institucional del CSIC
  • Selvam, Tamil Selvi
  • Pervan, Petar
  • Sancho-Parramon, Jordi
  • Spadaro, Maria Chiara
  • Arbiol, Jordi
  • Janicki, Vesna
6 pages. -- Table 1. Composition of different glass types used as substrates. -- Fig. 1. Comparison of Ψ and Δ spectra for standard sample step and poled region, together with corresponding fits. -- Fig. 2. Au NPs: poled and step region ε2 (a) and corresponding SEM micrographs (b, c). -- Fig. 3. The effect of plasma cleaning: comparison of sample cleaned with plasma upon GP and prior to coating (left) and a standard sample (right). -- Fig. 4 Difference of ε2 for Ag NPs containing layers over poled and step region for Cr containing sample. -- Fig. 5. SEM micrographs: transition between step (upper part) and poled region (lower part) of the sample with higher Ag concentration in the coating (a), protrusion of crystallites from the coating (b), out diffused crystallites (c) and their clustering (d). EDS of step region: at the site of the crystallite (e) and a site next to it (f). -- Fig. 6. The sample coated immediately after poling in vacuum: comparison of Ψ and Δ spectra for step and poled region (a) and b), respectively). -- Fig. 7. Transition between step and poled region of the sample coated immediately after poling in vacuum: from step region with out-diffused Na crystallites to the poled, crystallites free region confirming absence of IE., Peer reviewed




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