Adsorption studies of a phosphonic acid on ITO: film coverage, purity, and induced electronic structure changes
Literature Information
S. A. Paniagua, E. L. Li, S. R. Marder
The deposition of a prototypical phosphonic acid from an ethanol solution onto indium-tin oxide is studied using XPS to assess the chemisorption kinetics and the purity of the film deposited, and UPS is employed to determine the electronic structure changes induced by the modifier. Room temperature (r.t.) vs. 75 °C depositions are compared, as well as the effect of using air plasma (AP) pretreatment vs. utilizing only detergent–solvent cleaning (DSC) prior to immersion. It is concluded that the order of adsorption kinetics and film purity follows the trend AP 75 °C > DSC 75 °C > AP r.t. > DSC r.t., while the work function obtained for each immersion time depends on whether the substrate is plasma pretreated or not and on the molecular dipole, which saturates at high coverages.
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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.











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