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Author: Achim Schöll
Publisher:
ISBN:
Category :
Languages : en
Pages : 135
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Book Description
Author: Achim Schöll
Publisher:
ISBN:
Category :
Languages : en
Pages : 135
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Author: Daniel Käfer
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Dong, Xi
Publisher:
ISBN:
Category : Electronic dissertations
Languages : en
Pages : 163
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Book Description
In the quickly advancing world of material synthesis and processing, finer gauges are being developed for controlling dimensionality and constitutions of the materials. Apart from their bulk counterparts, remarkable physics has been demonstrated with the reduction of dimensionality, such as creation of zero-dimensional quantum dots with designed bandgap, one-dimensional (1D) nanotubes with excellent thermal and electrical conductivity and two-dimensional (2D) monolayer with direct bandgap, etc. Furthermore, incorporations of these materials into heterostructures (HSs) by bringing dissimilar constituents together, not only offers an opportunity to tune the structure and strength of the existing electronic properties of each constituent, but also of the capacity to generate novel electronic properties. Understanding the interfacial interactions holds a crucial role in tackling the origins of these changes which creates a strong desire for controlled synthesis of HSs and local investigation of the interfacial phenomenon. In the low-dimensional (LD) solid-state systems, depending on the configurations of the HSs (lateral or vertical), interfacial phenomenon that is confined within a few atomic layers, or a few atoms/molecules are readily available for probing by surface-sensitive techniques due to their limited sizes. To properly interpretate the origins of morphological alterations and electronic perturbations in a HS, both high-quality samples and microscopic characterization tools are required. Sample quality must be controlled to reduce the unintentional modification of the sample property. For that, molecular beam epitaxy (MBE) and organic molecular beam epitaxy (OMBE) are employed in our studies. They have excellent control on the growth parameters that fine tune the growth rate and growth kinetics. They can deposit high-quality thin films with sub-monolayer precision and create HSs from sequential depositions. Later, high-resolution scanning tunneling microscopy/spectroscopy (STM/STS) is utilized to connect the dots between the atomically resolved local morphology and the electronic structure perturbation which improves our understanding of the interfacial phenomenon. In this dissertation, we will investigate various HSs constructed with inorganic and organic thin films to demonstrate the crucial importance of the interfacial effect in tuning, selecting, and creating of the desired electronic structures in the LD systems. Different phase engineering and property tunning techniques will be revealed and connected to the interfacial influence by our selected studies. The first study will focus on probing the thin film growth morphology from tunning the strength of the interfacial interaction with the substrate. The second study will explore a new technique that incorporate the phase transition with the 2D lateral core-shell HSs construction which creates an interesting topological insulator and superconductor pair for future investigation. The third study will investigate an organic charge transfer complex HS, which offers more microscopic evidence for the macroscopic phase transition in bulk. Better understanding of the interfacial effect from our studies could contribute to the logical choice of the constituents for the HS construction and rational modification of the substrate interactions for high-quality thin film growth. In the last study, we will employ the knowledge of previous studies and aim to create a high-quality HS system which induces superconductivity in a semiconductor thin film.
Author:
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Category : Aeronautics
Languages : en
Pages : 702
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Author: Horst-Günter Rubahn
Publisher: Springer Science & Business Media
ISBN: 3540959300
Category : Technology & Engineering
Languages : en
Pages : 208
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Book Description
Organic semiconductors are a central topic of advanced materials research. The book is aiming at bridging the gap between the development and production of devices and basic research on thin film characterisation using cutting-edge techniques in surface and interface science. Topics involve organic molecular-based sensors; interfaces in organic diodes and transistors; mobility in organic field effect transistors and space charge problems; integration of optoelectronic nanostructures; nonlinear optical properties of organic nanostructures; the wetting layer problem; how to get from functionalized molecules to nanoaggregates; optical, electrical and mechanical properties of organic nanofibers as well; as near field investigations of organic thin films.
Author: Abraham Ulman
Publisher: Elsevier
ISBN: 1483288897
Category : Technology & Engineering
Languages : en
Pages : 415
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Book Description
Physics of Thin Films has been one of the longest running continuing series in thin film science consisting of 20 volumes since 1963. The series contains some of the highest quality studies of the properties ofvarious thin films materials and systems.In order to be able to reflect the development of todays science and to cover all modern aspects of thin films, the series, beginning with Volume 20, will move beyond the basic physics of thin films. It will address the most important aspects of both inorganic and organic thin films, in both their theoretical as well as technological aspects. Therefore, in order to reflect the modern technology-oriented problems, the title has been slightly modified from Physics of Thin Films to Thin Films.Edited by Abraham Ulman, Organic Thin Films and Surfaces: Directions for the Nineties will be the first volume to link two dynamic areas in the physical sciences--organic thin films and surface science. Contributions from leading experts in the field cover a range of important topics on the processing, characterization, and applications of organic thin films.
Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 1264
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Author: Jason Stephen Corneille
Publisher:
ISBN:
Category :
Languages : en
Pages : 482
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Author:
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ISBN:
Category : Military research
Languages : en
Pages : 746
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Author: Hari Singh Nalwa
Publisher: Academic Press
ISBN: 0125129084
Category : Science
Languages : en
Pages : 661
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Book Description
This five-volume handbook focuses on processing techniques, characterization methods, and physical properties of thin films (thin layers of insulating, conducting, or semiconductor material). The editor has composed five separate, thematic volumes on thin films of metals, semimetals, glasses, ceramics, alloys, organics, diamonds, graphites, porous materials, noncrystalline solids, supramolecules, polymers, copolymers, biopolymers, composites, blends, activated carbons, intermetallics, chalcogenides, dyes, pigments, nanostructured materials, biomaterials, inorganic/polymer composites, organoceramics, metallocenes, disordered systems, liquid crystals, quasicrystals, and layered structures. Thin films is a field of the utmost importance in today's materials science, electrical engineering and applied solid state physics; with both research and industrial applications in microelectronics, computer manufacturing, and physical devices. Advanced, high-performance computers, high-definition TV, digital camcorders, sensitive broadband imaging systems, flat-panel displays, robotic systems, and medical electronics and diagnostics are but a few examples of miniaturized device technologies that depend the utilization of thin film materials. The Handbook of Thin Films Materials is a comprehensive reference focusing on processing techniques, characterization methods, and physical properties of these thin film materials.
