Highly monodispersed Ag embedded SiO2 nanostructured thin film for sensitive SERS substrate: growth, characterization and detection of dye molecules

RSC Advances ◽  
2015 ◽  
Vol 5 (57) ◽  
pp. 46229-46239 ◽  
Author(s):  
Naidu Dhanpal Jayram ◽  
S. Sonia ◽  
Palaniswamy Suresh Kumar ◽  
L. Marimuthu ◽  
Yoshitake Masuda ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Sers Substrate ◽  
Dye Molecules ◽  
Nanostructured Thin Films ◽  
Nanostructured Thin Film ◽  
Growth Characterization

Highly monodispersed Ag embedded SiO2 nanostructured thin films have been synthesized and their sensitivity towards SERS investigated.

Nanostructured organic radical cathodes from self-assembled nitroxide-containing block copolymer thin films

2015 ◽  
Vol 3 (38) ◽  
pp. 19575-19581 ◽  
Author(s):  
G. Hauffman ◽  
A. Vlad ◽  
T. Janoschka ◽  
U. S. Schubert ◽  
J.-F. Gohy
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Block Copolymer ◽  
Diblock Copolymers ◽  
Organic Radical ◽  
Nanostructured Thin Film ◽  
Self Assembled

Nanostructured thin film organic radical cathodes have been prepared from poly(styrene)-block-poly(2,2,6,6-tetramethylpiperidinyloxy-4-yl methacrylate) diblock copolymers.

Effect of RF Power on the Formation and Morphology Evolution of ZnO Nanostructured Thin Films

2012 ◽  
Vol 576 ◽  
pp. 577-581 ◽  
Author(s):  
N.D.M. Sin ◽  
Mohamad Hafiz Mamat ◽  
Mohamed Zahidi Musa ◽  
S. Ahmad ◽  
A. Abdul Aziz ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Structural Properties ◽  
Zno Thin Films ◽  
Morphology Evolution ◽  
Zno Thin Film ◽  
Rf Power ◽  
Nanostructured Thin Films ◽  
Atomic Force ◽  
Current Voltage

The effect of RF power on the formation and morphology evolution of ZnO nanostructured thin films deposited by magnetron sputtering are presented. This project focused on electrical, optical and structural properties of ZnO thin films. The effect of variation of RF power at 50 watt-250 watt at 200 °C on glass substrate of the ZnO thin films was investigated. The thin films were examined for electrical properties and optical properties using two point probe current-voltage (I-V) measurement (Keithley 2400) and UV-Vis-NIR spectrophotometer (JASCO 670) respectively. The structural properties were characterized using field emission scanning electron microscope (FESEM) (JEOL JSM 7600F) and atomic force microscope (AFM) (Park System XE-100). The IV measurement indicated that at RF power 200 watt the conductivity of ZnO thin film show the highest. All films show high UV absorption properties using UV-VIS spectrophotometer (JASCO 670). The root means square (rms) roughness for ZnO thin film were about 4 nm measured using AFM. The image form FESEM observed that transformation of structure size started to change as the RF power increase.

Investigations of New Self-Assembled Multilayer Thin Films Based on Alternately Adsorbed Layers of Polyelectrolytes and Functional Dye Molecules

1995 ◽  
Vol 413 ◽  
Author(s):  
Dongsik Yoo ◽  
Jin-kyu Lee ◽  
M. F. Rubner
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Self Assembly ◽  
Fluorescent Dyes ◽  
Multilayer Thin Films ◽  
Layer By Layer ◽  
Dye Molecules ◽  
Ph Indicator ◽  
Light Emitting ◽  
Thin Film Devices

ABSTRACTThe layer-by-layer self-assembly of a number of different functional dye molecules has been accomplished via the alternate spontaneous adsorption of polyelectrolytes and ionic dyes from dilute solutions. Multilayer thin films containing such functional dyes as pH indicator dyes, infrared absorbing dyes, porphyrin dyes and various fluorescent dyes have been successfully fabricated and their electrical and opt, 2al properties examined. Multilayers containing a newly synthesized ionic ruthenium based polypryidyl dye have been utilized to fabricate light emitting thin film devices with high brightness (ca. 100 cd/m2) at voltages in the range of 5–10 volts. These new light emitting thin film devices exhibit excellent stability when compared to devices based on conjugated polymers such PPV. The fabrication and device evaluation of new heterostructure thin films based on this new light emitting dye as well as the properties of other multilayer thin films containing dye molecules are presented.

scholarly journals Preparation of Janus nanoparticles from block copolymer thin films using triazolinedione chemistry

RSC Advances ◽  
2017 ◽  
Vol 7 (59) ◽  
pp. 37048-37054 ◽  
Author(s):  
Elio Poggi ◽  
Wolfgang Ouvry ◽  
Bruno Ernould ◽  
Jean-Pierre Bourgeois ◽  
Subrata Chattopadhyay ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Block Copolymer ◽  
Click Chemistry ◽  
Diblock Copolymer ◽  
Nanostructured Thin Film ◽  
Janus Nanoparticles

A nanostructured thin film obtained from a polystyrene-block-poly(4-vinylpyridine) diblock copolymer was used as a template to produce Janus-type nanoparticles via triazolinedione-ene click chemistry.

scholarly journals Indium Oxide Based Nanomaterials: Fabrication Strategies, Properties, Applications, Challenges and Future Prospect

2020 ◽  
Author(s):  
Hasmat Khan ◽  
Saswati Sarkar ◽  
Moumita Pal ◽  
Susanta Bera ◽  
Sunirmal Jana
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Indium Oxide ◽  
Future Prospect ◽  
Surface Texturing ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Oxide Semiconductors ◽  
Nanostructured Thin Films ◽  
Nano Wires

Nanostructured metal oxide semiconductors (MOS) in the form of thin film or bulk attract significant interest of materials researchers in both basic and applied sciences. Among these important MOSs, indium oxide (IO) is a valuable one due to its novel properties and wide range of applications in diversified fields. IO based nanostructured thin films possess excellent visible transparency, metal-like electrical conductivity and infrared reflectance properties. This chapter mainly highlights the synthesis strategies of IO based bulk nanomaterials with variable morphologies starting from spherical nanoparticles to nano-rods, nano-wires, nano-needles, nanopencils, nanopushpins etc. In addition, thin film deposition and periodic 1-dimensional (1D)/2-dimensional (2D) surface texturing techniques of IO based nanostructured thin films vis-à-vis their functional properties and applications have been discussed. The chapter covers a state-of-the-art survey on the fabrication strategies and recent advancement in the properties of IO based nanomaterials with their different areas of applications. Finally, the challenges and future prospect of IO based nanomaterials have been discussed briefly.

scholarly journals Tailoring Properties of Hafnium Nitride Thin Film via Reactive Gas-Timing RF Magnetron Sputtering for Surface Enhanced-Raman Scattering Substrates

Crystals ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 78
Author(s):  
Nguentra Sucheewa ◽  
Winadda Wongwiriyapan ◽  
Annop Klamchuen ◽  
Michiko Obata ◽  
Masatsugu Fujishige ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Grain Size ◽  
Magnetron Sputtering ◽  
Rf Magnetron Sputtering ◽  
Sers Substrate ◽  
Hafnium Nitride ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Reactive Gas

This study successfully demonstrated the tailoring properties of hafnium nitride (HfN) thin films via reactive gas-timing (RGT) RF magnetron sputtering for surface-enhanced Raman spectroscopy (SERS) substrate applications. The optimal RGT sputtering condition was investigated by varying the duration time of the argon and nitrogen gas sequence. The RGT technique formed thin films with a grain size of approximately 15 nm. Additionally, the atomic ratios of nitrogen and hafnium can be controlled between 0.24 and 0.28, which is greater than the conventional technique, resulting in a high absorbance in the long wavelength region. Moreover, the HfN thin film exhibited a high Raman signal intensity with an EF of 8.5 × 104 to methylene blue molecules and was capable of being reused five times. A superior performance of HfN as a SERS substrate can be attributed to its tailored grain size and chemical composition, which results in an increase in the hot spot effect. These results demonstrate that the RGT technique is a viable method for fabricating HfN thin films with controlled properties at room temperature, which makes them an attractive material for SERS and other plasmonic applications.

Effect of Deposition Time on Properties of Nanostructured ZnO Thin Films Deposited by RF Magnetron Sputtering

2013 ◽  
Vol 832 ◽  
pp. 460-465 ◽  
Author(s):  
Nor Diyana Md Sin ◽  
M.H. Mamat ◽  
M. Rusop
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Optical Properties ◽  
Magnetron Sputtering ◽  
Deposition Time ◽  
Rf Magnetron Sputtering ◽  
Zno Thin Films ◽  
Zno Thin Film ◽  
Time Increase ◽  
Nanostructured Thin Film

The effect of deposition time on properties of ZnO nanostructured thin film was investigated. The ZnO thin films were deposited at various times from 15~75 minutes. The ZnO thin film at 60 min deposition time shows the highest current density and high conductivity with 2.15x10-2 Scm-1. The optical properties of ZnO thin films show high transmittance with >80% at 380 nm to 1200 nm. The thickness of ZnO thin film increases linearly with deposition time. The size of ZnO thin films increase as the deposition time increase. Based from fesem images, the ZnO nanocolumnar structure was formed at 15 to 60 minutes deposition time while at 75 minutes the sample formed nanoflakes structure.

Theoretical and Experimental Characterization for the Inelastic Behavior of the Micro-/Nanostructured Thin Films Using Strain Gradient Plasticity With Interface Energy

2009 ◽  
Vol 131 (4) ◽  
Author(s):  
George Z. Voyiadjis ◽  
Babur Deliktas
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Chemical Properties ◽  
Basic Research ◽  
Interface Energy ◽  
Model Systems ◽  
Film Material ◽  
Inelastic Behavior ◽  
Nanostructured Thin Films ◽  
Research Activities

Thin film technology is pervasive in many applications, including microelectronics, optics, magnetic, hard and corrosion resistant coatings, micromechanics, etc. Therefore, basic research activities will be necessary in the future to increase knowledge and understanding and to develop predictive capabilities for relating fundamental physical and chemical properties to the microstructure and performance of thin films in various applications. In basic research, special model systems are needed for quantitative investigation of the relevant and fundamental processes in thin film material science. Because of the diversity of the subject and the sheer volume of the publications, a complete a review of the area of the current study is focused particularly on the experimental and theoretical investigations for the inelastic behavior of the micro-/nanostructured thin films.

HARD TEMPLATES FOR FABRICATION OF NANOSTRUCTURED FILMS

NANO ◽  
2010 ◽  
Vol 05 (02) ◽  
pp. 75-87 ◽  
Author(s):  
KI-RIM LEE ◽  
YOUNG-UK KWON
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Block Copolymer ◽  
Self Assembly ◽  
The Other ◽  
Anodized Aluminum ◽  
Anodized Aluminum Oxide ◽  
Nanostructured Films ◽  
Nanostructured Thin Film ◽  
Mesoporous Thin Films

In this paper, we review on classes of materials that can be used as hard templates to fabricate nanostructured thin film materials. The hard templates discussed are anodized aluminum oxide (AAO), block copolymer (BC) self-assembly films, and mesoporous thin films (MTFs), with emphasis on MTFs since it has not been reviewed for the application as templates while the first two materials have been reviewed previously by others. Each one of the three classes of templates has advantages and drawbacks. Considering the pore dimensions available by each one of them, the three templates are complementary to one another. Some of the features of MTFs appear to be advantageous over the other types of templates. All and all, these three appear to have complementing features to cover the various aspects required for templates to synthesize nanostructured thin films.

scholarly journals Special Issue “Materials Processing for Production of Nanostructured Thin Films”

Processes ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 298
Author(s):  
Keith J. Stine
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Materials Processing ◽  
Special Issue ◽  
Nanostructured Thin Films ◽  
Thin Film Technology

The field of thin film technology [...]

Sign in / Sign up

Export Citation Format

Share Document