Dip-Pen Nanolithography of High-Melting-Temperature Molecules

Huang, Ling; Chang, Yu‐Hsu; Kakkassery, Joseph J.; Mirkin, Chad A.

doi:10.1021/jp065404d

Cited by 18 publications

(11 citation statements)

References 28 publications

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“…The enlarged 10 μm scan in (c) and (d) indicates a continuous smooth printing with few defects within the printed areas. The height signal now shows the elevation of the thiols a little more clearly, suggesting a step height <1 nm, in agreement with existing literature [ 31 – 33 ]. Due to the slight curvature of the underlying gold surface this value cannot be determined more exactly.…”

Section: Resultssupporting

confidence: 91%

Tip-enhanced Raman spectroscopic imaging of patterned thiol monolayers

Stadler¹,

Schmid²,

Opilik³

et al. 2011

Beilstein J. Nanotechnol.

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SummaryFull spectroscopic imaging by means of tip-enhanced Raman spectroscopy (TERS) was used to measure the distribution of two isomeric thiols (2-mercaptopyridine (2-PySH) and 4-mercaptopyridine (4-PySH)) in a self-assembled monolayer (SAM) on a gold surface. From a patterned sample created by microcontact printing, an image with full spectral information in every pixel was acquired. The spectroscopic data is in good agreement with the expected molecular distribution on the sample surface due to the microcontact printing process. Using specific marker bands at 1000 cm−1 for 2-PySH and 1100 cm−1 for 4-PySH, both isomers could be localized on the surface and semi-quantitative information was deduced from the band intensities. Even though nanometer size resolution information was not required, the large signal enhancement of TERS was employed here to detect a monolayer coverage of weakly scattering analytes that were not detectable with normal Raman spectroscopy, emphasizing the usefulness of TERS.

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Section: Resultssupporting

confidence: 91%

Tip-enhanced Raman spectroscopic imaging of patterned thiol monolayers

Stadler¹,

Schmid²,

Opilik³

et al. 2011

Beilstein J. Nanotechnol.

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“…3 Because the optically resolved surface area in such measurements is on the order of 100 mm À2 (this is fundamentally limited by the wavelength of the detected radiation), the required minimum size of the object assessable by such thermometers is on the order of 1000 nanoparticles and single-particle operation is clearly out of reach. However, temperature sensing with nanoscale resolution is needed, for example, in nanoelectronics and nanolithography 4,5 to improve stability, micro-fluidic devices, medical diagnostics and treatment. 6 Nanotechnology takes up the challenge.…”

Section: Introductionmentioning

confidence: 99%

Luminescence of nitrogen-vacancy centers in nanodiamonds at temperatures between 300 and 700 K: perspectives on nanothermometry

Plakhotnik

Gruber

2010

Phys. Chem. Chem. Phys.

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It is shown that the intensity of photoluminescence of nitrogen-vacancy (NV) centers in nanodiamond decreases 4-fold (with a wide spread among nanocrystals) when the surrounding temperature rises from 300 to 670 K. The effect is accompanied by a 2.7-fold decrease in the luminescence lifetime but negligible changes in the shape of the emission spectra. The heating-cooling circle is reversible. The effect is suggested to be practically useful for thermometry with nanometre spatial resolution but also stimulates deeper insight into the photophysics and photochemistry of NV-centers.

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“…The method offers more comprehensive control of the size of the nanostructures. We observed an relative standard deviation of ,10% which compares favourably to direct writing with high melting point solvents [15].…”

mentioning

confidence: 66%

Method for fabricating nanostructures via nanotemplates using dip-pen nanolithography

et al. 2012

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Dip-pen nanolithography (DPN) relies on the compatibility between the ink used and the substrate it is written on. This has lead to a significant reliance for DPN on thiol-gold chemistries for the fabrication of nanostructures. This reported work demonstrates a method for creating nanostructures through nanotemplates that allows a wider range of substrates and inks to be used. The substrate was spin-coated with a thin layer of polymer which is selectively removed using a scanning probe microscopy tip coated with a solvent. This produces nanotemplates that are subsequently used to create nanostructures by metallisation. Compared with directly written templates these nanotemplates facilitate longer interaction between inking material and the substrate. They also allow a controlled spatial resolution along the z-axis and eliminate the need for any blocking agents to prevent non-specific adsorption. This method allows DPN to be expanded to applications beyond thiol-gold chemistries.

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Dip-Pen Nanolithography of High-Melting-Temperature Molecules

Cited by 18 publications

References 28 publications

Tip-enhanced Raman spectroscopic imaging of patterned thiol monolayers

Tip-enhanced Raman spectroscopic imaging of patterned thiol monolayers

Luminescence of nitrogen-vacancy centers in nanodiamonds at temperatures between 300 and 700 K: perspectives on nanothermometry

Method for fabricating nanostructures via nanotemplates using dip-pen nanolithography

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