scholarly journals Toward optical sensing of metal nanoparticles using chiral sculptured thin films

2007 ◽  
Vol 1 (1) ◽  
pp. 019502 ◽  
Author(s):  
Akhlesh Lakhtakia
Keyword(s):  
Thin Films ◽  
Metal Nanoparticles ◽  
Optical Sensing ◽  
Sculptured Thin Films

scholarly journals X-ray Photoelectron Spectroscopy Analysis of Chitosan–Graphene Oxide-Based Composite Thin Films for Potential Optical Sensing Applications

Polymers ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 478
Author(s):  
Wan Mohd Ebtisyam Mustaqim Mohd Daniyal ◽  
Yap Wing Fen ◽  
Silvan Saleviter ◽  
Narong Chanlek ◽  
Hideki Nakajima ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Graphene Oxide ◽  
Photoelectron Spectroscopy ◽  
Functional Group ◽  
Optical Sensing ◽  
Composite Thin Films ◽  
Cobalt Ions ◽  
X Ray ◽  
Sensing Applications

In this study, X-ray photoelectron spectroscopy (XPS) was used to study chitosan–graphene oxide (chitosan–GO) incorporated with 4-(2-pyridylazo)resorcinol (PAR) and cadmium sulfide quantum dot (CdS QD) composite thin films for the potential optical sensing of cobalt ions (Co2+). From the XPS results, it was confirmed that carbon, oxygen, and nitrogen elements existed on the PAR–chitosan–GO thin film, while for CdS QD–chitosan–GO, the existence of carbon, oxygen, cadmium, nitrogen, and sulfur were confirmed. Further deconvolution of each element using the Gaussian–Lorentzian curve fitting program revealed the sub-peak component of each element and hence the corresponding functional group was identified. Next, investigation using surface plasmon resonance (SPR) optical sensor proved that both chitosan–GO-based thin films were able to detect Co2+ as low as 0.01 ppm for both composite thin films, while the PAR had the higher binding affinity. The interaction of the Co2+ with the thin films was characterized again using XPS to confirm the functional group involved during the reaction. The XPS results proved that primary amino in the PAR–chitosan–GO thin film contributed more important role for the reaction with Co2+, as in agreement with the SPR results.

When Pt meets BaTiO3: Interaction between metal nanoparticles and oxide thin films

2011 ◽  
Vol 65 (8) ◽  
pp. 1207-1210 ◽  
Author(s):  
Yaodong Yang ◽  
Jianjun Yao ◽  
Jie-Fang Li ◽  
D. Viehland
Keyword(s):  
Thin Films ◽  
Metal Nanoparticles ◽  
Oxide Thin Films

Thin films by regular patterns of metal nanoparticles: Tailoring the optical properties by nanodesign

1996 ◽  
Vol 63 (4) ◽  
pp. 381-384 ◽  
Author(s):  
W. Gotschy ◽  
K. Vonmetz ◽  
A. Leitner ◽  
F. R. Aussenegg
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Metal Nanoparticles ◽  
Regular Patterns

Fabrication of porous thin films of block copolymer at the liquid/liquid interface and construction of composite films doped with noble metal nanoparticles

RSC Advances ◽  
2015 ◽  
Vol 5 (85) ◽  
pp. 69339-69347 ◽  
Author(s):  
Qian Wang ◽  
Xingjuan Zhao ◽  
Xiao-Kai Zhang ◽  
Yong-Ill Lee ◽  
Hong-Guo Liu
Keyword(s):  
Thin Films ◽  
Block Copolymer ◽  
Metal Nanoparticles ◽  
Polymer Film ◽  
Noble Metal ◽  
Composite Films ◽  
Liquid Interface ◽  
Porous Polymer ◽  
Noble Metal Nanoparticles ◽  
Porous Thin Films

A porous polymer film was fabricated at a liquid/liquid interface that can be used as a matrix to form various composite films.

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