Investigation Of Charge Carrier Dynamics In Organo Halide Perovskite And Colloidal Quantum Dot Semiconductors
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| Author | : Tze-Chien Sum |
| Publisher | : John Wiley & Sons |
| Total Pages | : 312 |
| Release | : 2019-03-25 |
| Genre | : Technology & Engineering |
| ISBN | : 3527341110 |
Real insight from leading experts in the field into the causes of the unique photovoltaic performance of perovskite solar cells, describing the fundamentals of perovskite materials and device architectures. The authors cover materials research and development, device fabrication and engineering methodologies, as well as current knowledge extending beyond perovskite photovoltaics, such as the novel spin physics and multiferroic properties of this family of materials. Aimed at a better and clearer understanding of the latest developments in the hybrid perovskite field, this is a must-have for material scientists, chemists, physicists and engineers entering or already working in this booming field.
| Author | : Bernhard Johann Bohn |
| Publisher | : Springer Nature |
| Total Pages | : 169 |
| Release | : 2021-05-18 |
| Genre | : Science |
| ISBN | : 303070940X |
Less than a decade ago, lead halide perovskite semiconductors caused a sensation: Solar cells exhibiting astonishingly high levels of efficiency. Recently, it became possible to synthesize nanocrystals of this material as well. Interestingly; simply by controlling the size and shape of these crystals, new aspects of this material literally came to light. These nanocrystals have proven to be interesting candidates for light emission. In this thesis, the recombination, dephasing and diffusion of excitons in perovskite nanocrystals is investigated using time-resolved spectroscopy. All these dynamic processes have a direct impact on the light-emitting device performance from a technology point of view. However, most importantly, the insights gained from the measurements allowed the author to modify the nanocrystals such that they emitted with an unprecedented quantum yield in the blue spectral range, resulting in the successful implementation of this material as the active layer in an LED. This represents a technological breakthrough, because efficient perovskite light emitters in this wavelength range did not exist before.
| Author | : Kenneth D. Karlin |
| Publisher | : John Wiley & Sons |
| Total Pages | : 544 |
| Release | : 2005-06-14 |
| Genre | : Science |
| ISBN | : 0471725552 |
The cutting edge of scientific reporting . . . PROGRESS in Inorganic Chemistry Nowhere is creative scientific talent busier than in the world ofinorganic chemistry experimentation. Progress in InorganicChemistry continues in its tradition of being the most respectedavenue for exchanging innovative research. This series providesinorganic chemists and materials scientists with a forum forcritical, authoritative evaluations of advances in every area ofthe discipline. With contributions from internationally renownedchemists, this latest volume offers an in-depth, far-rangingexamination of the changing face of the field, providing atantalizing glimpse of the emerging state of the science. "This series is distinguished not only by its scope and breadth,but also by the depth and quality of the reviews." -Journal of the American Chemical Society "[This series] has won a deservedly honored place on the bookshelfof the chemist attempting to keep afloat in the torrent of originalpapers on inorganic chemistry." -Chemistry in Britain CONTENTS OF VOLUME 54 * Atomlike Building Units of Adjustable Character: Solid-State andSolution Routes to Manipulating Hexanuclear Transition MetalChalcohalide Clusters (Eric J. Welch and Jeffrey R. Long) * Doped Semiconductor Nanocrystals: Synthesis, Characterization,Physical Properties, and Applications (J. Daniel Bryan and DanielR. Gamelin) * Stereochemical Aspects of Metal Xanthane Complexes: MolecularStructures and Supramolecular Self-Assembly (Edward R. T. Tiekinkand Ionel Haiduc) * Trivalent Uranium: A Versatile Species for Molecular Activation(Ilia Korobkov and Sandro Gambarotta) * Comparison of the Chemical Biology of NO and HNO: An InorganicPerspective (Katrina M. Miranda and David A. Wink) * Alterations of Nucleobase pKa Values upon Metal Coordination:Origins and Consequences (Bernhard Lippert) * Functionalization of Myoglobin (Yoshihito Watanabe and TakashiHayashi)
| Author | : Jiang Wu |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 383 |
| Release | : 2013-10-28 |
| Genre | : Technology & Engineering |
| ISBN | : 1461481309 |
A quantum dot molecule (QDM) is composed of two or more closely spaced quantum dots or “artificial atoms.” In recent years, QDMs have received much attention as an emerging new artificial quantum system. The interesting and unique coupling and energy transfer processes between the “artificial atoms” could substantially extend the range of possible applications of quantum nanostructures. This book reviews recent advances in the exciting and rapidly growing field of QDMs via contributions from some of the most prominent researchers in this scientific community. The book explores many interesting topics such as the epitaxial growth of QDMs, spectroscopic characterization, and QDM transistors, and bridges between the fundamental physics of novel materials and device applications for future information technology. Both theoretical and experimental approaches are considered. Quantum Dot Molecules can be recommended for electrical engineering and materials science department courses on the science and design of advanced and future electronic and optoelectronic devices.
| Author | : Robert R. Alfano |
| Publisher | : |
| Total Pages | : 486 |
| Release | : 1984 |
| Genre | : Science |
| ISBN | : |
Semiconductors Probed by Ultrafast Laser Spectroscopy, Volume 1 discusses the use of ultrafast laser spectroscopy in studying fast physics in semiconductors. It reviews progress on the experimental and theoretical understanding of ultrafast events that occur on a picosecond and nanosecond time scale. This volume first explores the relaxation of energy and the momentum of hot carriers and then turns to relaxation of plasmas and phonons. It also discusses the dynamics of excitons, polaritons, and excitonic molecules and reviews transient transport and diffusion of carriers. Scientists, engineers ...
| Author | : Morteza Sasani Ghamsari |
| Publisher | : BoD – Books on Demand |
| Total Pages | : 171 |
| Release | : 2017-10-25 |
| Genre | : Technology & Engineering |
| ISBN | : 9535135759 |
Quantum dot-based light emitting diodes were assigned to bringing together the latest and most important progresses in light emitting diode (LED) technologies. In addition, they were dedicated to gain the perspective of LED technology for all of its advancements and innovations due to the employment of semiconductor nanocrystals. Highly selective, the primary aim was to provide a visual source for high-urgency work that will define the future directions relating to the organic light emitting diode (OLED), with the expectation for lasting scientific and technological impact. The editor hopes that the chapters verify the realization of the mentioned aims that have been considered for editing of this book. Due to the rapidly growing OLED technology, we wish this book to be useful for any progress that can be achieved in future.
| Author | : Xin Tong |
| Publisher | : Springer Nature |
| Total Pages | : 319 |
| Release | : 2021-09-17 |
| Genre | : Technology & Engineering |
| ISBN | : 3030742709 |
This book presents a comprehensive overview of state-of-the-art quantum dot photodetectors, including device fabrication technologies, optical engineering/manipulation strategies, and emerging photodetectors with building blocks of novel quantum dots (e.g. perovskite) as well as their hybrid structured (e.g. 0D/2D) materials. Semiconductor quantum dots have attracted much attention due to their unique quantum confinement effect, which allows for the facile tuning of optical properties that are promising for next-generation optoelectronic applications. Among these remarkable properties are large absorption coefficient, high photosensitivity, and tunable optical spectrum from ultraviolet/visible to infrared region, all of which are very attractive and favorable for photodetection applications. The book covers both fundamental and frontier research in order to stimulate readers' interests in developing novel ideas for semiconductor photodetectors at the center of future developments in materials science, nanofabrication technology and device commercialization. The book provides a knowledge sharing platform and can be used as a reference for researchers working in the fields of photonics, materials science, and nanodevices.
| Author | : Victor I. Klimov |
| Publisher | : CRC Press |
| Total Pages | : 485 |
| Release | : 2017-12-19 |
| Genre | : Technology & Engineering |
| ISBN | : 1420079271 |
A review of recent advancements in colloidal nanocrystals and quantum-confined nanostructures, Nanocrystal Quantum Dots is the second edition of Semiconductor and Metal Nanocrystals: Synthesis and Electronic and Optical Properties, originally published in 2003. This new title reflects the book’s altered focus on semiconductor nanocrystals. Gathering contributions from leading researchers, this book contains new chapters on carrier multiplication (generation of multiexcitons by single photons), doping of semiconductor nanocrystals, and applications of nanocrystals in biology. Other updates include: New insights regarding the underlying mechanisms supporting colloidal nanocrystal growth A revised general overview of multiexciton phenomena, including spectral and dynamical signatures of multiexcitons in transient absorption and photoluminescence Analysis of nanocrystal-specific features of multiexciton recombination A review of the status of new field of carrier multiplication Expanded coverage of theory, covering the regime of high-charge densities New results on quantum dots of lead chalcogenides, with a focus studies of carrier multiplication and the latest results regarding Schottky junction solar cells Presents useful examples to illustrate applications of nanocrystals in biological labeling, imaging, and diagnostics The book also includes a review of recent progress made in biological applications of colloidal nanocrystals, as well as a comparative analysis of the advantages and limitations of techniques for preparing biocompatible quantum dots. The authors summarize the latest developments in the synthesis and understanding of magnetically doped semiconductor nanocrystals, and they present a detailed discussion of issues related to the synthesis, magneto-optics, and photoluminescence of doped colloidal nanocrystals as well. A valuable addition to the pantheon of literature in the field of nanoscience, this book presents pioneering research from experts whose work has led to the numerous advances of the past several years.
| Author | : Feng Gao |
| Publisher | : Elsevier |
| Total Pages | : 552 |
| Release | : 2019-04-10 |
| Genre | : Technology & Engineering |
| ISBN | : 0128136480 |
Advanced Nanomaterials for Solar Cells and Light Emitting Diodes discusses the importance of nanomaterials as the active layers in solar cells and light emitting diodes (LEDs), along with the progress of nanomaterials as the electron and hole transporting layers. Specifically, the book reviews the use of nano-morphology of polymers, small molecules, and the organic-inorganic perovskites as the active layers in solar cells and LEDs. The design, fabrication and properties of metal-oxide-based nano-structures as electron and hole transporting layers are also reviewed. In addition, the development of plasmonic nanomaterials for solar cells and LEDs is discussed. Each topic in this book includes an overview of the materials system from principles to process. The advantages, disadvantages and related methodologies are highlighted. The book includes applications based on materials and emphasize how to improve the performance of solar cells and LEDs by the materials design, with a focus on nanomaterials. - Provides latest research on nanostructured materials including small molecules, polymers, organic-inorganic perovskites, and many other relevant materials systems for solar cells and LEDs - Addresses each promising materials system from principles to process, detailing the advantages and disadvantages of the most relevant methods of processing and fabrication - Looks ahead to most likely techniques to improve performance of solar cells and light emitting diodes
| Author | : Ye Zhou |
| Publisher | : Springer Nature |
| Total Pages | : 374 |
| Release | : 2020-08-27 |
| Genre | : Technology & Engineering |
| ISBN | : 9811566372 |
This book addresses perovskite quantum dots, discussing their unique properties, synthesis, and applications in nanoscale optoelectronic and photonic devices, as well as the challenges and possible solutions in the context of device design and the prospects for commercial applications. It particularly focuses on the luminescent properties, which differ from those of the corresponding quantum dots materials, such as multicolor emission, fluorescence narrowing, and tunable and switchable emissions from doped nanostructures. The book first describes the characterization and fabrication of perovskite quantum dots. It also provides detailed methods for analyzing the electrical and optical properties, and demonstrates promising applications of perovskite quantum dots. Furthermore, it presents a series of optoelectronic and photonic devices based on functional perovskite quantum dots, and explains the incorporation of perovskite quantum dots in semiconductor devices and their effect of the performance. It also explores the challenges related to optoelectronic devices, as well as possible strategies to promote their commercialization. As such, this book is a valuable resource for graduate students and researchers in the field of solid-state materials and electronics wanting to gain a better understanding of the characteristics of quantum dots, and the fundamental optoelectronic properties and operation mechanisms of the latest perovskite quantum dot-based devices.
