Document Detail

One-step Index-tunable Antireflection Coatings from Aggregated Silica Nanoparticles.
MedLine Citation:
PMID:  23198825     Owner:  NLM     Status:  Publisher    
We demonstrate a method for producing thickness- and refractive index-tunable antireflection coatings utilizing a one-step spin coating procedure with commercially available silica nanoparticle solutions. Aging nanoparticle solutions under controlled pH and temperature induces nanoparticle aggregation, which provides a precise way to control the porosity and thus refractive index of the resulting spin-processed coating. Thickness measurements of the nanoparticle coatings as a function of solution aging time and temperature allow for determination of the activation energy of the reaction-limited solution aggregation process, as confirmed by dynamic light scattering. We demonstrate how the controlled aggregation method can be used to optimize the antireflection effect for a single-layer silica nanoparticle coating on glass. This method can potentially be utilized to tailor the structure and properties of various nanoparticle-based assemblies.
Kevin T Cook; Kwadwo E Tettey; Robert M Bunch; Daeyeon Lee; Adam John Nolte
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-12-3
Journal Detail:
Title:  ACS applied materials & interfaces     Volume:  -     ISSN:  1944-8252     ISO Abbreviation:  ACS Appl Mater Interfaces     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-12-3     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101504991     Medline TA:  ACS Appl Mater Interfaces     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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