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In situ stress and nanogravimetric measurements during underpotential deposition of bismuth on (111)-textured Au

Article Abstract:

The surface stress associated with the underpotential deposition (upd) of bismuth on (111)-textured Au is examined using the water curvature method, in acidic perchlorate and nitrate supporting electrolyte. The surface stress is correlated to Bi coverage by independent nanogravimetric measurements using an electrochemical quartz nanobalance and the mass increase measured in the presence of perchlorate is reported to be consistent with the (2 * 2) and (p * square root 3)-2Bi adlayers.

Primary nonferrous metals, not elsewhere classified, Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), All Other Basic Inorganic Chemical Manufacturing, Industrial inorganic chemicals, not elsewhere classified, Gold Compounds, Bismuth, Analysis, Electrodeposition

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Adsorption of polymeric micelles and vesicles on a surface investigated by quartz crystal microbalance

Article Abstract:

The adsorption and structural transformation of micelles and vesicles formed by polystyrene-b-poly(N-isopropylacrylamide) (PS-bPNIPAM) diblock copolymers on a gold surface in real time is investigated using quartz crystal microbalance with dissipation (QCM-D). Results reveal that the interaction between the polymer chains and the gold surface plays a critical role in the structural deformation and transformation.

China, Plastics Material and Resin Manufacturing, Plastics materials and resins, Polystyrene, Styrene Resins, Polystyrene Resins NEC, Micelles

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Side-chain role in chemically sensing conducting polymer field-effect transistors

Article Abstract:

The role of polymer side chains in conferring selectivity to a sensing organic thin-film transistor is investigated. The responses of both polymer-based transistor and quartz crystal microbalance sensors are evaluated and compared.

Semiconductors and related devices, Semiconductor and Related Device Manufacturing, Science & research, Transistors, Research, Polymers, Thermal properties

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