Shelf time effect on SERS effectiveness of silver nanorod prepared by OAD technique

Nuntawong, Noppadon; Eiamchai, Pitak; Wong-ek, Bongkochtorn; Horprathum, Mati; Limwichean, K.; Patthanasettakul, Viyapol; Chindaudom, Pongpan

doi:10.1016/j.vacuum.2012.08.006

Cited by 41 publications

(45 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently, SERS has attracted an increased attention to the investigations of various chemical reactions on metal surfaces. A critical aspect of SERS-related applications is to develop a specific morphology of the metal surfaces to alter the local electric field and achieve a reproducible and high level of enhancement [9]. With the GLAD technique, the authors fabricated Ag nanorod arrays as the SERS substrates, whose enhancement factors highly depended on their physical morphology.…”

Section: Practical Applicationsmentioning

confidence: 99%

Fabrication of nanostructure by physical vapor deposition with glancing angle deposition technique and its applications

Horprathum

Eiamchai

Kaewkhao

et al. 2014

AIP Conference Proceedings

View full text Add to dashboard Cite

Abstract.A nanostructural thin film is one of the highly exploiting research areas particularly in applications in sensor, photocatalytic, and solar-cell technologies. In the past two decades, the integration of glancing-angle deposition (GLAD) technique to physical vapor deposition (PVD) process has gained significant attention for well-controlled multidimensional nanomorphologies because of fast, simple, cost-effective, and mass-production capability. The performance and functional properties of the coated thin films generally depend upon their nanostructural compositions, i.e., large aspect ratio, controllable porosity, and shape. Such structural platforms make the fabricated thin films very practical for several realistic applications. We therefore present morphological and nanostructural properties of various deposited materials, which included metals, i.e., silver (Ag), and oxide compounds, i.e., tungsten oxide (WO 3 ), titanium dioxide (TiO 2 ), and indium tin oxide (ITO). Different PVD techniques based on DC magnetron sputtering and electron-beam evaporation, both with the integrated GLAD component, were discussed. We further explore engineered nanostructures which enable controls of optical, electrical, and mechanical properties. These improvements led to several practical applications in surface-enhanced Raman, smart windows, gas sensors, self-cleaning materials and transparent conductive oxides (TCO).

show abstract

Section: Practical Applicationsmentioning

confidence: 99%

Fabrication of nanostructure by physical vapor deposition with glancing angle deposition technique and its applications

Horprathum

Eiamchai

Kaewkhao

et al. 2014

AIP Conference Proceedings

View full text Add to dashboard Cite

show abstract

“…Surface enhanced Raman spectroscopy (SERS) has a great potential for analytical testing due to: the high sensitivity and selectivity, including the possibility of single molecule detection;the possibility of multiplexed analysis;the availability of cheaper and better hand held Raman spectrometers; andthe potential of point-of-sampling testing, including at home, in the clinician’s office, and in the field involving standalone battery operated portable analytical instrumentation [1,2,3,4,5,6,7,8,9,10]. …”

Section: Introductionmentioning

confidence: 99%

“…the potential of point-of-sampling testing, including at home, in the clinician’s office, and in the field involving standalone battery operated portable analytical instrumentation [1,2,3,4,5,6,7,8,9,10]. …”

Section: Introductionmentioning

confidence: 99%

“…The major bottlenecks for routine use of SERS include reliability, cost and the short shelf-life of the SERS substrates [1,2,3,4,5]. There have been several SERS substrate designs developed through three decades of research, but most substrate designs fall short of one or more of the above-mentioned bottlenecks [2,3,4]. SERS substrate designs broadly fall under three categories:

electrochemically roughened metal electrodes;

metal colloids; and

engineered metallic nano-patterns on planar surfaces [2].

…”

Section: Introductionmentioning

confidence: 99%

“…They are relatively low-cost to produce, but have poor SERS efficiency [1,2]. Metal colloids, on the other hand, are known to provide the best SERS enhancements [2].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Chemically Roughened Solid Silver: A Simple, Robust and Broadband SERS Substrate

Wijesuriya

Burugapalli

Mackay

et al. 2016

Sensors

View full text Add to dashboard Cite

Surface-enhanced Raman spectroscopy (SERS) substrates manufactured using complex nano-patterning techniques have become the norm. However, their cost of manufacture makes them unaffordable to incorporate into most biosensors. The technique shown in this paper is low-cost, reliable and highly sensitive. Chemical etching of solid Ag metal was used to produce simple, yet robust SERS substrates with broadband characteristics. Etching with ammonium hydroxide (NH4OH) and nitric acid (HNO3) helped obtain roughened Ag SERS substrates. Scanning electron microscopy (SEM) and interferometry were used to visualize and quantify surface roughness. Flattened Ag wires had inherent, but non-uniform roughness having peaks and valleys in the microscale. NH4OH treatment removed dirt and smoothened the surface, while HNO3 treatment produced a flake-like morphology with visibly more surface roughness features on Ag metal. SERS efficacy was tested using 4-methylbenzenethiol (MBT). The best SERS enhancement for 1 mM MBT was observed for Ag metal etched for 30 s in NH4OH followed by 10 s in HNO3. Further, MBT could be quantified with detection limits of 1 pM and 100 µM, respectively, using 514 nm and 1064 nm Raman spectrometers. Thus, a rapid and less energy intensive method for producing solid Ag SERS substrate and its efficacy in analyte sensing was demonstrated.

show abstract

Gold Nanoparticles Sliding on Recyclable Nanohoodoos—Engineered for Surface‐Enhanced Raman Spectroscopy

Schmidt

et al. 2017

Adv Funct Materials

View full text Add to dashboard Cite

 Users may download and print one copy of any publication from the public portal for the purpose of private study or research.  You may not further distribute the material or use it for any profit-making activity or commercial gain  You may freely distribute the URL identifying the publication in the public portal If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.

show abstract

Shelf time effect on SERS effectiveness of silver nanorod prepared by OAD technique

Cited by 41 publications

References 15 publications

Fabrication of nanostructure by physical vapor deposition with glancing angle deposition technique and its applications

Fabrication of nanostructure by physical vapor deposition with glancing angle deposition technique and its applications

Chemically Roughened Solid Silver: A Simple, Robust and Broadband SERS Substrate

Gold Nanoparticles Sliding on Recyclable Nanohoodoos—Engineered for Surface‐Enhanced Raman Spectroscopy

Contact Info

Product

Resources

About