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This is a special issue of ECS Transactions published by ECS in memory of Volker Lehmann and Vitali Parkhutik, two key scientists in the field of porous semiconductors who recently passed away. Topics in this issue aim at a more detailed understanding of growth mechanisms and the physical and chemical properties of all types of porous semiconductors. The papers address research in the various sub-fields of porous semiconductors such as semiconductor electrochemistry, deposition into pores, matrix materials, optical spectroscopy and transdisciplinary approaches to the topic as well as work relevant to the formation of advanced materials such as, for example, porous silicon, matrix composites and nanoclusters and their applications such as chemical and biological sensors.
The papers included in this issue of ECS Transactions were originally presented at the 2nd International Conference from Nanoparticles and Nanomaterials to Nanodevices and Nanosystems (IC4N) Meeting, held in Rhodes, Greece, June 28 - July 3, 2009.
These proceedings represent the most recent progress in the field of porous silicon. Several papers present results in which the influence of the formation parameters on the structural and optical properties has been investigated. Further topics dealt with include: the influence of light during the formation process on the photoluminescence behaviour; fundamental mechanism of the photoluminescence; the electroluminescence of porous silicon; applications based on porous silicon; charge carrier transport.
Providing new insights into the molecular and electronic processes involved in the conversion of sunlight into chemical products, Photoelectrochemical Solar Conversion Systems: Molecular and Electronic Aspects begins with an historical overview and a survey of recent developments in the electrochemistry of semiconductors and spectroscopic technique
This volume of the Handbook of Surface Science covers all aspects of the dynamics of surface processes. Two dozen world leading experts in this field address the subjects of energy exchange in gas atoms, surface collisions, the rules governing dissociative adsorption on surfaces, the formation of nanostructures on surfaces by self-assembly, and the study of surface phenomena using ultra-fast lasers. The chapters are written for both newcomers to the field as well as researchers.• Covers all aspects of the dynamics of surface processes • Provides understanding of this unique field utilizing a multitude of accurate experiments and advanced microscopic theory that allows quantum-level comparisons • Presents the concepts and tools relevant beyond surface science for catalysis, nanotechnology, biology, medicine, and materials
This series, formerly edited by Heinz Gerischer and Charls V. Tobias, now edited by Richard C. Alkire and Dieter M. Kolb, has been warmly welcomed by scientists world-wide which is reflected in the reviews of the previous volumes: "This is an essential book for researchers in electrochemistry; it covers areas of both fundamental and practical importance, with reviews of high quality. The material is very well presented and the choice of topics reflects a balanced editorial policy that is welcomed." —The Analyst "All the contributions in this volume are well up to the standard of this excellent series and will be of great value to electrochemists.... The editors again deserve to be congratulated on this fine collection of reviews." —Journal of Electroanalytical Chemistry and Interfacial Chemistry "...competently and clearly written." —Berichte der Bunsen- Gesellschaft für Physikalische Chemie
This volume aims at bringing together the results of extensive research done during the last fifteen years on the interfacial photoelectronic properties of the inorganic layered semiconducting materials, mainly in relation to solar energy conversion. Significant contributions have been made both on the fundamental aspects of interface characteristics and on the suitability of the layered materials in photoelectrochemical (semiconductor/electrolyte junctions) and in solid state photovoltaic(Schottky and p-n junctions) cells. New insights into the physical and chemical characteristics of the contact surfaces have been gained and many new applications of these materials have been revealed. In p...
This issue of ECS Transactions contains 24 refereed manuscripts from the 46 papers presented over three days at the International Symposium on Pits and Pores IV: New Materials and Applications held in Las Vegas, NV as part of the 218th Meeting of the Electrochemical Society, October 10-15, 2010. The Symposium was held in memory of Ulrich Gösele, one of the founders and a key scientist in the field of porous semiconductors who recently passed away. These proceedings are anticipated to be beneficial not only for the tailored preparation of porous materials for various applications but also as a source of insights with respect to the origin and nature of localized dissolution processes in metals and semiconductors.
This book discusses the basic principles and processes of solar energy conversion in natural photosynthesis. It then directly compares them with recent developments and concepts currently being pursued in artificial photosynthetic systems that are capable of utilizing sunlight to convert carbon dioxide and water into a chemical fuel. In this regard, the main focus is on photoelectrochemical cells, in which semiconducting photoanodes and -cathodes modified with (electro-) catalysts are used to oxidize water, produce hydrogen and reduce carbon dioxide in a monolithic device. The fundamental photochemical and photophysical processes involved are presented and discussed, along with protection mechanisms and efficiency calculations for both natural and artificial photosynthesis. In turn, key parameters that are crucial for the efficient operation of natural photosynthesis are identified. Lastly, their validity and applicability in the design of artificial solar-driven water-splitting systems are examined.