Zno Nanocarbon Core Shell Type Hybrid Quantum Dots PDF Download
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Author | : Won Kook Choi |
Publisher | : Springer |
Total Pages | : 84 |
Release | : 2016-08-20 |
Genre | : Technology & Engineering |
ISBN | : 9811009805 |
Download ZnO-Nanocarbon Core-Shell Type Hybrid Quantum Dots Book in PDF, ePub and Kindle
This book offers a comprehensive overview of ZnO-nano carbon core shell hybrid issues. There is significant interest in metal oxide/nanocarbon hybrid functional materials in the field of energy conversion and storage as electrode materials for supercapacitors, Li ion secondary battery, electrocatalysts for water splitting, and optoelectronic devices such as light emitting diodes and solar photovoltaic cells. Despite efforts to manipulate more uniform metal oxide-nanocarbon nanocomposite structures, they have shown poor performance because they are randomly scattered and non-uniformly attached to the nanocarbon surface. For higher and more effective performance of the hybrid structure, 3D conformal coating on metal oxides are highly desirable. In the first part of the book, the physical and chemical properties of ZnO and nanocarbons and the state-of-the-art in related research are briefly summarized. In the next part, the 3D conformal coating synthetic processes of ZnO templated nanocarbon hybrid materials such as ZnO-graphene,-C60, single-walled (SWCNT) are introduced with the aid of schematic illustrations. Analysis of their chemical bonding and structure are also presented. In the final section, several applications are presented: UV photovoltaic cells and photoelectrochemical anodes for water splitting using ZnO-C60 and ZnO-graphene, white-light-emitting diodes based on ZnO-graphene quantum dots(GQDs), inverted solar cells using ligand-modified ZnO-graphene QDs, and P(VDF-TrFE) copolymer with mixed with nano-ring SWCNT. The book describes how strong anchoring bonds between a ZnO core and carbon nanomaterial shell will ultimately prevail over the main drawbacks of ZnO with high charge recombination and poor electrochemical stability in liquid solutions. Due to the moderate energy states and excellent electric properties of the nanocarbons, ultrafast charge carrier transport from the ZnO core to the nanocarbon shell is guaranteed with the use of the photoluminescence (PL) lifetime measurement. Given the growing interest and significance of future research in optoelectronic and electrochemical devices applications, the contents are very timely. This book is targeted towards researchers looking for highly efficient metal oxide-nanocarbon hybrid functional materials in the fields of nano-optoelectronics, photoelectrochemistry, energy storage and conversion.
Author | : Tae Woo Lee |
Publisher | : Woodhead Publishing |
Total Pages | : 230 |
Release | : 2019-11-16 |
Genre | : Technology & Engineering |
ISBN | : 0081024835 |
Download Graphene for Flexible Lighting and Displays Book in PDF, ePub and Kindle
Graphene for Next Generation Lighting and Displays provides readers with a comprehensive overview of graphene, flexible graphene electrodes, and graphene-based next-generation display and lighting. The book covers a wide range of information, including the basic physics of graphene and recent trends in technical developments for graphene-based flexible and stretchable light-emitting devices. In addition, it discusses future prospects and suggests further directions for research on graphene-based next-generation displays and lightings. In addition, the book includes sections on the fundamental properties of graphene, synthetic methods of graphene, preparation of graphene electrodes and composite electrodes, and doping methods for graphene electrodes. Potential applications are also addressed including graphene-based flexible electrodes, buffer layer, emitters, and graphene-based stretchable electrodes. Reviews the most promising applications, including OLEDs, graphene-based buffer layers for LEDs, quantum dot emitters, and stretchable graphene electrodes Describes practical approaches in modifying the properties of graphene for the purpose of optoelectronic applications
Author | : Xin Tong |
Publisher | : Springer Nature |
Total Pages | : 331 |
Release | : 2020-07-01 |
Genre | : Science |
ISBN | : 3030465969 |
Download Core/Shell Quantum Dots Book in PDF, ePub and Kindle
This book outlines various synthetic approaches, tuneable physical properties, and device applications of core/shell quantum dots (QDs). Core/shell QDs have exhibited enhanced quantum yield (QY), suppressed photobleaching/blinking, and significantly improved photochemical/physical stability as compared to conventional bare QDs. The core-shell structure also promotes the easy tuning of QDs’ band structure, leading to their employment as attractive building blocks in various optoelectronic devices. The main objective of this book is to create a platform for knowledge sharing and dissemination of the latest advances in novel areas of core/shell QDs and relevant devices, and to provide a comprehensive introduction and directions for further research in this growing area of nanomaterials research.
Author | : Nicholas Andrew Harris |
Publisher | : |
Total Pages | : 69 |
Release | : 2012 |
Genre | : Electronic dissertations |
ISBN | : |
Download Quantum Dot Sensitized ZnO Nanowire-P3HT Hybrid Photovoltaics Book in PDF, ePub and Kindle
A hybrid, nanostructured solar cell architecture has been designed, described, fabricated and characterized. ZnO nanowires were synthesized using thermal chemical vapor deposition to act as a high energy photon absorber scaffold and electron transport pathway. InP-ZnS core-shell quantum dots were attached to the nanowires via surface chemistry to act as a high-efficiency sensitizing absorption medium. A ligand exchange procedure was performed to cap the quantum dots with mercaptopropionic acid for improved adhesion to ZnO nanowires and improved electrical properties. Experimentation was performed to optimize the surface chemistry adhesion of the ligand exchange and quantum dot-nanowire adhesion. A thoroughly-filled P3HT matrix was drop coated selectively and annealed into the quantum dot sensitized nanowire array to serve as a hole capture and transport, absorption, and planarizing medium. Characterization was performed throughout device fabrication using SEM, TEM, XRD, PL spectroscopy, Raman spectroscopy, UV-Vis spectroscopy, and electrical measurements. A dense monolayer of quantum dots was deposited and imaged via HRTEM. PL quenching of quantum dots in P3HT was observed. The viability and advantages of quantum dot sensitization of a hybrid ZnO nanowire-P3HT hybrid were shown via PL, UV-Vis and device electrical measurements.
Author | : N. Thejo Kalyani |
Publisher | : Woodhead Publishing |
Total Pages | : 612 |
Release | : 2023-01-18 |
Genre | : Technology & Engineering |
ISBN | : 0323852793 |
Download Quantum Dots Book in PDF, ePub and Kindle
Quantum dots: Emerging materials for versatile applications is an introduction to the fundamentals and important advances of research of this important category of semiconductor nanostructured materials. After a brief review of relevant nanotechnology concepts and the unique properties of nanomaterials, the book describes the fundamentals of quantum dots with definitions of the primary classifications of quantum dots. There is an emphasis on practical considerations of the commercial translation of quantum dots such as their toxicity, stability, and disposal. Moreover, the book focuses on a review of the advances in research in emerging quantum dot materials along with the latest innovations in materials design and fabrication methods. Quantum Dots is suitable for materials scientists and engineers in academia or industry R&D who are looking for an introduction to this research topic or a key reference on the latest advances and applications. Introduces the primary classifications, properties, synthesis, characterization and fabrication strategies of quantum dots Reviews the latest applications of quantum dots for LEDs, displays, energy storage devices, photovoltaic cells, medicine, and more Discusses the practical barriers to commercial translation of quantum dots, including toxicity, stability, and their safe disposal
Author | : Sabu Thomas |
Publisher | : Springer Nature |
Total Pages | : 483 |
Release | : |
Genre | : |
ISBN | : 3031547799 |
Download Quantum Dots Based Nanocomposites Book in PDF, ePub and Kindle
Author | : Simas Rackauskas |
Publisher | : |
Total Pages | : |
Release | : 2017 |
Genre | : Science |
ISBN | : |
Download ZnO Nanowires for Dye Sensitized Solar Cells Book in PDF, ePub and Kindle
This chapter provides a broad review of the latest research activities focused on the synthesis and application of ZnO nanowires (NWs) for dye-sensitized solar cells (DSCs) and composed of three main sections. The first section briefly introduces DSC-working principles and ZnO NW application advantages and stability issues. The next section reviews ZnO NW synthesis methods, demonstrating approaches for controlled synthesis of different ZnO NW morphology and discussing how this effects the overall efficiency of the DSC. In the last section, the methods for ZnO NW interface modification with various materials are discussed, which include ZnO core-shell structures with semiconductive or protective layers, ZnO NW hybrid structures with other materials, such as nanoparticles, quantum dots and carbon nanomaterials and their benefit for charge and light transport in DSCs. The review is concluded with some perspectives and outlook on the future developments in the ZnO nanowire application for DSCs.
Author | : Jean-Charles Arnault |
Publisher | : John Wiley & Sons |
Total Pages | : 320 |
Release | : 2020-09-21 |
Genre | : Technology & Engineering |
ISBN | : 1119429382 |
Download Synthesis and Applications of Nanocarbons Book in PDF, ePub and Kindle
A crucial overview of the cutting-edge in nanocarbon research and applications In Synthesis and Applications of Nanocarbons, the distinguished authors have set out to discuss fundamental topics, synthetic approaches, materials challenges, and various applications of this rapidly developing technology. Nanocarbons have recently emerged as a promising material for chemical, energy, environmental, and medical applications because of their unique chemical properties and their rich surface chemistries. This book is the latest entry in the Wiley book series Nanocarbon Chemistry and Interfaces and seeks to comprehensively address many of the newly surfacing areas of controversy and development in the field. This book introduces foundational concepts in nanocarbon technology, hybrids, and applications, while also covering the most recent and cutting-edge developments in this area of study. Synthesis and Applications of Nanocarbons addresses new discoveries in the field, including: · Nanodiamonds · Onion-like carbons · Carbon nanotubes · Fullerenes · Carbon dots · Carbon fibers · Graphene · Aerographite This book provides a transversal view of the various nanocarbon materials and hybrids and helps to share knowledge between the communities of each material and hybrid type.
Author | : Samir Kumar |
Publisher | : BoD – Books on Demand |
Total Pages | : 268 |
Release | : 2021-09-15 |
Genre | : Technology & Engineering |
ISBN | : 1839686596 |
Download Silver Micro-Nanoparticles Book in PDF, ePub and Kindle
This book describes the different methodologies for producing and synthesizing silver nanoparticles (AgNPs) of various shapes and sizes. It also provides an in-depth understanding of the new methods for characterizing and modifying the properties of AgNPs as well as their properties and applications in various fields. This book is a useful resource for a wide range of readers, including scientists, engineers, doctoral and postdoctoral fellows, and scientific professionals working in specialized fields such as medicine, nanotechnology, spectroscopy, analytical chemistry diagnostics, and plasmonics.
Author | : Praveen Kumar |
Publisher | : Springer |
Total Pages | : 0 |
Release | : 2023-01-21 |
Genre | : Business & Economics |
ISBN | : 9789811672873 |
Download Photoelectrochemical Hydrogen Generation Book in PDF, ePub and Kindle
This book describes the hydrogen fuel generation from water via photoelectrochemical process. It elaborates the theory and fundamental concepts of photoelectrochemistry to understand the photoelectrochemical process for water splitting to generate hydrogen fuel. The book further deliberates about the hydrogen as a futuristic chemical fuel to store solar energy in the form of chemical bonds and also as a renewable alternative to fossil fuels. The book establishes the need for hydrogen fuel and discusses the standards and practices used for solar driven photoelectrochemical water splitting. It also discusses the current and future status of the nanomaterials as efficient photoelectrodes for solar photoelectrochemical water splitting. The book will be of interest to the researchers, students, faculty, scientists, engineers, and technologists working in the domain of material science, energy harvesting, energy conversion, photo electrochemistry, nanomaterials for photo-electrochemical (PEC) cell, etc.