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Books > Science & Mathematics > Chemistry > Analytical chemistry > Qualitative analytical chemistry > Chemical spectroscopy, spectrochemistry > General
Sean Ashton's doctoral thesis, which he finished at the Technical
University in Munich, describes the challenge of constructing a
Differential Electrochemical Mass Spectrometer instrument (DEMS).
DEMS combines an electrochemical cell with mass spectrometry via a
membrane interface, allowing gaseous and volatile electrochemical
reaction species to be monitored online. The thesis carefully
introduces the fuel cell electrocatalyst development concerns
before reviewing the pertinent literature on DEMS. This is followed
by the presentation and discussion of the new extended design,
including a thorough characterization of the instrument. The
capabilities of the new setup are demonstrated in two research
studies: The methanol oxidation reaction on Pt and PtRu catalysts,
and the electrochemical corrosion of fuel cell catalyst supports.
Despite both topics having long since been studied, new insights
can be obtained through careful investigations with the new DEMS
instrument that are of great, general interest. The thesis and the
instrument thus show the way for future investigations in the
field.
This book presents the current knowledge about superconductivity in
high Tc cuprate superconductors. There is a large scientific
interest and great potential for technological applications. The
book discusses all the aspects related to all families of cuprate
superconductors discovered so far. Beginning with the phenomenon of
superconductivity, the book covers: the structure of cuprate HTSCs,
critical currents, flux pinning, synthesis of HTSCs, proximity
effect and SQUIDs, possible applications of high Tc superconductors
and theories of superconductivity. Though a high Tc theory is still
awaited, this book describes the present scenario and BCS and RVB
theories. The second edition was significantly extended by
including film-substrate lattice matching and buffer layer
considerations in thin film HTSCs, brick-wall microstructure in the
epitaxial films, electronic structure of the CuO2 layer in
cuprates, s-wave and d-wave coupling in HTSCs and possible
scenarios of theories of high Tc superconductivity.
The idea for this book arose out of the realization that, although
excellent surveys and a phosphor handbook are available, there is
no single source covering the area of phosphate based phosphors
especially for lamp industry. Moreover, as this field gets only
limited attention in most general books on luminescence, there is a
clear need for a book in which attention is specifically directed
toward this rapidly growing field of solid state lighting and its
many applications. This book is aimed at providing a sound
introduction to the synthesis and optical characterization of
phosphate phosphor for undergraduate and graduate students as well
as teachers and researchers. The book provides guidance through the
multidisciplinary field of solid state lighting specially phosphate
phosphors for beginners, scientists and engineers from
universities, research organizations, and especially industry. In
order to make it useful for a wide audience, both fundamentals and
applications are discussed, together.
"Solid-State Theory - An Introduction" is a textbook for graduate
students of physics and material sciences. Whilst covering the
traditional topics of older textbooks, it also takes up new
developments in theoretical concepts and materials that are
connected with such breakthroughs as the quantum-Hall effects, the
high-Tc superconductors, and the low-dimensional systems realized
in solids. Thus besides providing the fundamental concepts to
describe the physics of the electrons and ions comprising the
solid, including their interactions, the book casts a bridge to the
experimental facts and gives the reader an excellent insight into
current research fields. A compilation of problems makes the book
especially valuable to both students and teachers.
Atomic Spectroscopy provides a comprehensive discussion on the
general approach to the theory of atomic spectra, based on the use
of the Lagrangian canonical formalism. This approach is developed
and applied to explain the hydrogenic hyperfine structure
associated with the nucleus motion, its finite mass, and spin. The
non-relativistic or relativistic, spin or spin-free particle
approximations can be used as a starting point of general approach.
The special attention is paid to the theory of Lamb shift
formation. The formulae for hydrogenic spectrum including the
account of Lamb shift are written in simple analytical form. The
book is of interest to specialists, graduate and postgraduate
students, who are involved into the experimental and theoretical
research in the field of modern atomic spectroscopy.
Optics and Lasers is an introduction to engineering and applied
optics, including not only elementary ray and wave optics, but also
lasers, holography, copherence, fibers, and optical waveguides. It
stresses physicalprinciples, applications, and instrumentation. It
will be most usefull to the practicing engineer or experimental
scientist, graduate student, or advanced undergraduate. It contains
more than enough material from which to selelct the core of an
introctory optics course and sufficientto form the bulk of a more
advanced course.
"Physics of Nanostructured Solid State Devices"introduces readers
to theories and concepts such as semi-classical and quantum
mechanical descriptions of electron transport, methods for
calculations of band structures in solids with applications in
calculation of optical constants, and other advanced concepts. The
information presented here will equip readers with the necessary
tools to carry out cutting edge research in modern solid state
nanodevices."
Photophysics of Carbon Nanotubes Interfaced with Organic and
Inorganic Materials describes physical, optical and spectroscopic
properties of the emerging class of nanocomposites formed from
carbon nanotubes (CNTs) interfacing with organic and inorganic
materials. The three main chapters detail novel trends in
photophysics related to the interaction of light with various
carbon nanotube composites from relatively simple CNT/small
molecule assemblies to complex hybrids such as CNT/Si and CNT/DNA
nanostructures. The latest experimental results are followed up
with detailed discussions and scientific and technological
perspectives to provide a through coverage of major topics
including: -Light harvesting, energy conversion, photoinduced
charge separation and transport in CNT based nanohybrids
-CNT/polymer composites exhibiting photoactuation; and -Optical
spectroscopy and structure of CNT/DNA complexes. Including original
data and a short review of recent research, Photophysics of Carbon
Nanotubes Interfaced with Organic and Inorganic Materials makes
this emerging field of photophysics and its applications available
to academics and professionals working with carbon nanotube
composites in fundamental and applied fields
NMR Spectroscopy for Chemical Analysis at Low Magnetic Fields, by
Stefan Gloeggler, Bernhard Blumich, Stephan Appelt Dynamic Nuclear
Hyperpolarization in Liquids, by Ulrich L. Gunther NMR with
Multiple Receivers, by Eriks Kupce TROSY NMR Spectroscopy of Large
Soluble Proteins, by Yingqi Xu, Stephen Matthews Solid-State NMR
Spectroscopy of Proteins, by Henrik Muller, Manuel Etzkorn, Henrike
Heise Paramagnetic Solid-State Magic-Angle Spinning NMR
Spectroscopy, by Guido Pintacuda, Gwendal Kervern
The properties and nature of water clusters studied with novel
spectroscopic approaches are presented in this thesis. Following a
general introduction on the chemistry of water and water clusters,
detailed descriptions of the experiments and analyses are given.
All the experimental results, including first size-selective
spectra of large clusters consisting of 200 water molecules, are
presented with corresponding analyses. Hitherto unidentified
hydrogen bond network structures, dynamics, and reactivity of
various water clusters have been characterized at the molecular
level. The main targets of this book are physical chemists and
chemical physicists who are interested in water chemistry or
cluster chemistry.
Concepts in Projection-Reconstruction, by Ray Freeman and riks Kup
e.- Automated Projection Spectroscopy and Its Applications, by
Sebastian Hiller and Gerhard Wider.- Data Sampling in
Multidimensional NMR: Fundamentals and Strategies, by Mark W.
Maciejewski, Mehdi Mobli, Adam D. Schuyler, Alan S. Stern and
Jeffrey C. Hoch.- Generalized Fourier Transform for Non-Uniform
Sampled Data, by Krzysztof Kazimierczuk, Maria Misiak, Jan Stanek,
Anna Zawadzka-Kazimierczuk and Wiktor Ko mi ski.- Applications of
Non-Uniform Sampling and Processing, by Sven G. Hyberts, Haribabu
Arthanari and Gerhard Wagner"
In his thesis, Matthias Junk takes an innovative approach to assess
the local structure and dynamics of biological and synthetic
amphiphilic macromolecules capable of transporting small molecules.
Replacing the latter with stable radicals, he uses state-of-the-art
electron paramagnetic resonance (EPR) spectroscopy to describe the
highly relevant transport function from the viewpoint of the guest
molecules. Such, he demonstrates that the functional structure of
human serum albumin in solution significantly differs from its
crystal structure - a consequence of the protein's adaptability to
host various endogenous compounds and drug molecules. Further, he
shows that the thermal collapse of thermoresponsive hydrogels and
dendronized polymers leads to static and dynamic heterogeneities on
the nanoscale. These heterogeneities bear consequences for the
material's hosting properties and enable unforeseen complex
catalytic functionalities.
The "Rudolf Moessbauer Story" recounts the history of the discovery
of the "Moessbauer Effect" in 1958 by Rudolf Moessbauer as a
graduate student of Heinz Maier-Leibnitz for which he received the
Nobel Prize in 1961 when he was 32 years old. The development of
numerous applications of the Moessbauer Effect in many fields of
sciences , such as physics, chemistry, biology and medicine is
reviewed by experts who contributed to this wide spread research.
In 1978 Moessbauer focused his research interest on a new field
"Neutrino Oscillations" and later on the study of the properties of
the neutrinos emitted by the sun.
Diffusion in solids at moderate temperatures is a well-known
phenomenon. However, direct experimental evidence about the
responsible atomic-scale mechanisms has been scarce, due to
difficulties in probing the relevant length- and time-scales. The
present thesis deals with the application of X-ray Photon
Correlation Spectroscopy (XPCS) for answering such questions. This
is an established method for the study of slow dynamics on
length-scales of a few nanometres. The scattered intensity in the
diffuse regime, i.e. corresponding to atomic distances, is very
low, however, and so it has so far been considered impossible to
use XPCS for this problem. Threefold progress is reported in this
work: It proposes a number of systems selected for high diffuse
intensity, it optimizes the photon detection and data evaluation
procedures, and it establishes theoretical models for
interpretating the results. Together these advances allowed the
first successful atomic-scale XPCS experiment, which elucidated the
role of preferred configurations for atomic jumps in a copper-gold
alloy. The growth in available coherent X-ray intensity together
with next-generation X-ray sources will open up a wide field of
application for this new method.
This thesis investigates the transitions from one electronically
excited state to another. Such processes - the fastest of events in
chemistry - can be studied with femtosecond resolution, and Thomas
S. Kuhlman approaches the question both with experimental and
theoretical methods. His approach contributes to explain processes
of high importance to all scientific fields concerned with the
interaction between light and matter: the deactivation of the
electronically excited states after excitation. Thomas S. Kuhlman
concludes in this thesis that the electronic transition proceeds
before the entire set of available degrees of freedom are active -
'It is as simple as that' !
The International Workshop on "Intersubband Transitions in Quantum
Wells:: Physics and Applications," was held at National Cheng Kung
University, in Tainan, Taiwan, December 15-18, 1997. The objective
of the Workshop is to facilitate the presentation and discussion of
the recent results in theoretical, experimental, and applied
aspects of intersubband transitions in quantum wells and dots. The
program followed the tradition initiated at the 1991 conference in
Cargese-France, the 1993 conference in Whistler, B. C. Canada, and
the 1995 conference in Kibbutz Ginosar, Israel. Intersubband
transitions in quantum wells and quantum dots have attracted
considerable attention in recent years, mainly due to the promise
of various applications in the mid- and far-infrared regions (2-30
J. lm). Over 40 invited and contributed papers were presented in
this four-day workshop, with topics covered most aspects of the
intersubband transition phenomena including: the basic intersubband
transition processes, multiquantum well infrared photodetector
(QWIP) physics, large format (640x480) GaAs QWIP (with 9. 0 J. lffi
cutoff) focal plane arrays (FPAs) for IR imaging camera
applications, infrared modulation, intersubband emission including
mid- and long- wavelength quantum cascade (QC) lasers such as short
(A. "" 3. 4 J. lm) and long (A. "" 11. 5 J. lm) wavelength room
temperature QC lasers, quantum fountain intersubband laser at 15. 5
J. lm wavelength in GaAs/AIGaAs quantum well, harmonic generation
and nonlinear effects, ultra-fast phenomena such as terahertz (THz)
intersubband emission and detection. The book divides into five
Chapters.
Photoelectrochemical Hydrogen Production describes the principles
and materials challenges for the conversion of sunlight into
hydrogen through water splitting at a semiconducting electrode.
Readers will find an analysis of the solid state properties and
materials requirements for semiconducting photo-electrodes, a
detailed description of the semiconductor/electrolyte interface, in
addition to the photo-electrochemical (PEC) cell. Experimental
techniques to investigate both materials and PEC device performance
are outlined, followed by an overview of the current
state-of-the-art in PEC materials and devices, and combinatorial
approaches towards the development of new materials. Finally, the
economic and business perspectives of PEC devices are discussed,
and promising future directions indicated. Photoelectrochemical
Hydrogen Production is a one-stop resource for scientists, students
and R&D practitioners starting in this field, providing both
the theoretical background as well as useful practical information
on photoelectrochemical measurement techniques. Experts in the
field benefit from the chapters on current state-of-the-art
materials/devices and future directions.
At present, there is an increasing interest in the prediction of
properties of classical and new materials such as substitutional
alloys, their surfaces, and metallic or semiconductor multilayers.
A detailed understanding based on a thus of the utmost importance
for fu microscopic, parameter-free approach is ture developments in
solid state physics and materials science. The interrela tion
between electronic and structural properties at surfaces plays a
key role for a microscopic understanding of phenomena as diverse as
catalysis, corrosion, chemisorption and crystal growth. Remarkable
progress has been made in the past 10-15 years in the understand
ing of behavior of ideal crystals and their surfaces by relating
their properties to the underlying electronic structure as
determined from the first principles. Similar studies of complex
systems like imperfect surfaces, interfaces, and mul tilayered
structures seem to be accessible by now. Conventional
band-structure methods, however, are of limited use because they
require an excessive number of atoms per elementary cell, and are
not able to account fully for e.g. substitu tional disorder and the
true semiinfinite geometry of surfaces. Such problems can be solved
more appropriately by Green function techniques and multiple
scattering formalism.
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