/pdf/self-assembled-monolayers-of-thiolates-on-metals-as-a-form-1neb0hj3k4.pdf

Self-assembled monolayers of thiolates on metals as a form of nanotechnology.

Fundamentals of Plasmonics.- Electromagnetics of Metals.- Surface Plasmon Polaritons at Metal / Insulator Interfaces.- Excitation of Surface Plasmon Polaritons at Planar Interfaces.- Imaging Surface Plasmon Polariton Propagation.- Localized Surface Plasmons.- Electromagnetic Surface Modes at Low Frequencies.- Applications.- Plasmon Waveguides.- Transmission of Radiation Through Apertures and Films.- Enhancement of Emissive Processes and Nonlinearities.- Spectroscopy and Sensing.- Metamaterials and Imaging with Surface Plasmon Polaritons.- Concluding Remarks.

/pdf/plasmonics-fundamentals-and-applications-4syb9877sr.pdf

Plasmonics: Fundamentals and Applications

The surface science of titanium dioxide

Self-assembly is the autonomous organization of components into patterns or structures without human intervention. Self-assembling processes are common throughout nature and technology. They involve components from the molecular (crystals) to the planetary (weather systems) scale and many different kinds of interactions. The concept of self-assembly is used increasingly in many disciplines, with a different flavor and emphasis in each.

http://science.sciencemag.org/content/sci/295/5564/2418.full.pdf

Self-assembly at all scales.

Recent developments have greatly improved the sensitivity of optical sensors based on metal nanoparticle arrays and single nanoparticles. We introduce the localized surface plasmon resonance (LSPR) sensor and describe how its exquisite sensitivity to size, shape and environment can be harnessed to detect molecular binding events and changes in molecular conformation. We then describe recent progress in three areas representing the most significant challenges: pushing sensitivity towards the single-molecule detection limit, combining LSPR with complementary molecular identification techniques such as surface-enhanced Raman spectroscopy, and practical development of sensors and instrumentation for routine use and high-throughput detection. This review highlights several exceptionally promising research directions and discusses how diverse applications of plasmonic nanoparticles can be integrated in the near future.

Biosensing with plasmonic nanosensors

Study of morphology and composition of Pt-black catalysts III. XPS study of Pt-black

Excitation mechanism in the photodissociation of dioxygen adsorbed on Pd(111)

The adsorption of CO on RuO2(110) single-crystalline thin films grown on Ru(0001) was studied with scanning tunneling microscopy (STM), thermal desorption spectroscopy (TDS), and high-resolution electron energy-loss spectroscopy The stoichiometric RuO2(110) surface exhibits alternating rows of O-bridge and coordinatively unsaturated Ru atoms (Ru-cus) We identify two different CO adsorption states: CO-bridge and CO-cus CO-bridge is known to adsorb at the O-bridge positions after reacting-off O-bridge CO-cus is linearly bonded to Ru-cus in an on-top position and becomes stabilized only after complete filling of the CO-bridge sites The CO-cus state exhibits two desorption maxima, at 200 and 320 K, corresponding to a surface coverage of approximately 10 (α state) and 05 (β state), respectively At 300 K and without CO gas in the background, CO-cus remains only temporarily present at the surface, and reaches coverages of 05 A coverage of 10 can be achieved by exposure to CO at 300 K to prepare CO-bri

Interaction of CO with the stoichiometric RuO2(110) surface

The cyclic current–potential curve for a well-defined Ru(0001) surface in 0.1 M HClO4 solution clearly exhibits hydrogen and O/OH adsorption peaks at − 0.15 and 0.25 V, respectively. The coulometric charge of the current peak at − 0.15 V equals 120 μC cm−2
 corresponding to 0.5 monolayer (ML) H coverage. Both voltammetric peaks disappear completely by the CO electrosorption at − 0.1 V, demonstrating that the electrosorbed CO completely blocks H adsorption. The disappeared H adsorption current peak due to the electrosorbed CO corresponds to a CO saturated coverage of 0.5 ML on Ru(0001) in good agreement with the coulometric data determined by the current transient of CO electrooxidation. The coverage of the electrosorbed CO also agrees well with the data obtained for the coadsorption system CO + O/Ru(0001) under UHV conditions. At 0.4 V no CO electrosorption takes place on a (1 × 1)-O/Ru(0001) surface in a CO-saturated
 HClO4 solution similarly as with CO adsorption on a (1 × 1)-O/Ru(0001) surface under UHV conditions. On the other hand, the coadsorption of COad with Oad at 0 V gives rise to a well-ordered (2 × 2)-(O + 2CO) structure similar to that observed from the coadsorption of CO and O on Ru(0001) under UHV conditions. No
 CO electrooxidation occurs at 0.45 V for the coadsorbed CO and O on Ru(0001) electrode surface. Up to 0.55
 V the CO oxidation rate increases markedly with increasing potential in good agreement with our previous in situ
 IR results. The driving force for the CO electrochemical reaction is attributed to the decrease in the activiation barrier for CO oxidation by the polarization potential.

Gerhard Ertl

Papers

Study of morphology and composition of Pt-black catalysts III. XPS study of Pt-black

Excitation mechanism in the photodissociation of dioxygen adsorbed on Pd(111)

Interaction of CO with the stoichiometric RuO2(110) surface

Electrosorption and electrooxidation of CO on Ru(0001)

Evidence for paramagnetism of NO molecules chemisorbed on transition-metal surfaces.