Morphology Control in Polymer Light Emitting Diodes and Molecular Bulk-heterojunction Photovoltaics

Morphology Control in Polymer Light Emitting Diodes and Molecular Bulk-heterojunction Photovoltaics
Author: Kenneth R. Graham
Publisher:
Total Pages:
Release: 2011
Genre:
ISBN:

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The D-A-D based oligomers are observed to readily form aggregates that lead to decreases in device performance. To combat this problem, oligomers with bulky or cross-linkable end-groups are incorporated into PLEDs. Although neither strategy is shown to reduce aggregation, the cross-linkable systems allow for solution-processed multilayer PLEDs to be obtained. The family of Pt-porphyrins incorporated into PLEDs was designed with two primary purposes; extending the emission wavelength further into the near-IR and optimizing the molecular structure to both decrease aggregation and increase quantum yield. The second portion of this dissertation focuses on controlling morphology in solution-processed molecular BHJ photovoltaic cells through two different methods. The first method involves the incorporation of solvent additives with known solubility parameters to develop a predictable method of morphology control. The second method involves the use of asymmetric oligomers to more predictably control the crystallization kinetics and thus provide the ability to finely tune the film morphology.

Photoresponsive Polymers II

Photoresponsive Polymers II
Author: Seth Marder
Publisher: Springer Science & Business Media
Total Pages: 217
Release: 2008-08-26
Genre: Technology & Engineering
ISBN: 3540694528

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Semiconducting Polymer Composites

Semiconducting Polymer Composites
Author: Xiaoniu Yang
Publisher: John Wiley & Sons
Total Pages: 553
Release: 2012-10-05
Genre: Technology & Engineering
ISBN: 3527648704

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The first part of Semiconducting Polymer Composites describes the principles and concepts of semiconducting polymer composites in general, addressing electrical conductivity, energy alignment at interfaces, morphology, energy transfer, percolation theory and processing techniques. In later chapters, different types of polymer composites are discussed: mixtures of semiconducting and insulating or semiconducting and semiconducting components, respectively. These composites are suitable for a variety of applications that are presented in detail, including transistors and solar cells, sensors and detectors, diodes and lasers as well as anti-corrosive and anti-static surface coatings.

McEvoy's Handbook of Photovoltaics

McEvoy's Handbook of Photovoltaics
Author: Soteris Kalogirou
Publisher: Academic Press
Total Pages: 1341
Release: 2017-08-24
Genre: Technology & Engineering
ISBN: 0128103973

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Practical Handbook of Photovoltaics, Third Edition, is a 'benchmark' publication for those involved in the design, manufacture and use of these devices. This fully revised handbook includes brand new sections on smart grids, net metering and the modeling of photovoltaic systems, as well as fully revised content on developments in photovoltaic applications, the economics of PV manufacturing and updated chapters on solar cell function, raw materials, photovoltaic standards, calibration and testing, all with new examples and case studies. The editor has assembled internationally-respected contributors from industry and academia around the world to make this a truly global reference. It is essential reading for electrical engineers, designers of systems, installers, architects, policymakers and physicists working with photovoltaics. Presents a cast of international experts from industry and academia to ensure the highest quality information from multiple stakeholder perspectives Covers all things photovoltaics, from the principles of solar cell function and their raw materials, to the installation and design of full photovoltaic systems Includes case studies, practical examples, and reports on the latest advances and worldwide applications

Handbook of Organic Materials for Optical and (Opto)Electronic Devices

Handbook of Organic Materials for Optical and (Opto)Electronic Devices
Author: Oksana Ostroverkhova
Publisher: Elsevier
Total Pages: 832
Release: 2013-08-31
Genre: Technology & Engineering
ISBN: 0857098764

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Small molecules and conjugated polymers, the two main types of organic materials used for optoelectronic and photonic devices, can be used in a number of applications including organic light-emitting diodes, photovoltaic devices, photorefractive devices and waveguides. Organic materials are attractive due to their low cost, the possibility of their deposition from solution onto large-area substrates, and the ability to tailor their properties. The Handbook of organic materials for optical and (opto)electronic devices provides an overview of the properties of organic optoelectronic and nonlinear optical materials, and explains how these materials can be used across a range of applications.Parts one and two explore the materials used for organic optoelectronics and nonlinear optics, their properties, and methods of their characterization illustrated by physical studies. Part three moves on to discuss the applications of optoelectronic and nonlinear optical organic materials in devices and includes chapters on organic solar cells, electronic memory devices, and electronic chemical sensors, electro-optic devices.The Handbook of organic materials for optical and (opto)electronic devices is a technical resource for physicists, chemists, electrical engineers and materials scientists involved in research and development of organic semiconductor and nonlinear optical materials and devices. Comprehensively examines the properties of organic optoelectronic and nonlinear optical materials Discusses their applications in different devices including solar cells, LEDs and electronic memory devices An essential technical resource for physicists, chemists, electrical engineers and materials scientists

Handbook of Organic Materials for Electronic and Photonic Devices

Handbook of Organic Materials for Electronic and Photonic Devices
Author: Oksana Ostroverkhova
Publisher: Woodhead Publishing
Total Pages: 911
Release: 2018-11-30
Genre: Technology & Engineering
ISBN: 0081022859

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Handbook of Organic Materials for Electronic and Photonic Devices, Second Edition, provides an overview of the materials, mechanisms, characterization techniques, structure-property relationships, and most promising applications of organic materials. This new release includes new content on emerging organic materials, expanded content on the basic physics behind electronic properties, and new chapters on organic photonics. As advances in organic materials design, fabrication, and processing that enabled charge unprecedented carrier mobilities and power conversion efficiencies have made dramatic advances since the first edition, this latest release presents a necessary understanding of the underlying physics that enabled novel material design and improved organic device design. Provides a comprehensive overview of the materials, mechanisms, characterization techniques, and structure property relationships of organic electronic and photonic materials Reviews key applications, including organic solar cells, light-emitting diodes electrochemical cells, sensors, transistors, bioelectronics, and memory devices New content to reflect latest advances in our understanding of underlying physics to enable material design and device fabrication

Molecular Design and Applications of Photofunctional Polymers and Materials

Molecular Design and Applications of Photofunctional Polymers and Materials
Author: Wai-Yeung Wong
Publisher: Royal Society of Chemistry
Total Pages: 511
Release: 2012-09-30
Genre: Technology & Engineering
ISBN: 184973576X

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Functional organic and organometallic polymers and materials have gained much attention as versatile materials for energy interconversions and optoelectronic/photonic applications, including electrical energy generation in photovoltaic cells and light generation in organic light-emitting diodes, as they offer a low cost, light weight and simple option for device fabrication. Molecular Design and Applications of Photofunctional Polymers and Materials, presents a critical perspective of the current field, with emphasis on fundamental concepts and current applications in optoelectronics, electronics and nanotechnology. The book also covers photochemically degradable polymers, electrochromic and photochromic materials, biosensing and bioimaging materials, and low- and high-refractive index materials. With contributions from leading experts in the field, this timely book will provide a valuable contribution to the community enabling new synthetic methods to be developed to produce new materials with specific functional roles.

Advanced Nanomaterials for Solar Cells and Light Emitting Diodes

Advanced Nanomaterials for Solar Cells and Light Emitting Diodes
Author: Feng Gao
Publisher: Elsevier
Total Pages: 549
Release: 2019-04-10
Genre: Technology & Engineering
ISBN: 0128136480

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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

Conjugated Polymers

Conjugated Polymers
Author: John R. Reynolds
Publisher: CRC Press
Total Pages: 909
Release: 2019-03-25
Genre: Technology & Engineering
ISBN: 0429524420

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This book covers properties, processing, and applications of conducting polymers. It discusses properties and characterization, including photophysics and transport. It then moves to processing and morphology of conducting polymers, covering such topics as printing, thermal processing, morphology evolution, conducting polymer composites, thin films

Optoelectronics

Optoelectronics
Author: Sergei Pyshkin
Publisher: BoD – Books on Demand
Total Pages: 498
Release: 2013-01-16
Genre: Technology & Engineering
ISBN: 9535109227

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Optoelectronics - Advanced Materials and Devices is a second edition following the initial Optoelectronics - Materials and Techniques book published in 2011 as part of the InTech collection of international works on optoelectronics. Optoelectronics, as the discipline devoted to the study and application of electronic devices that emit, detect, and otherwise control light, has widely proliferated globally and enabled many of today's modern conveniences. Because of this ubiquity, new applications and novel optical phenomena continue to drive innovation. Accordingly, as with the first book of the collection, this book covers recent achievements by specialists around the world. The growing number of countries participating in this endeavor including now Brazil, Canada, China, Egypt, France, Germany, India, Italy, Japan, Malaysia, Mexico, Moldova, Morocco, Netherlands, Portugal, Romania, Saudi Arabia, South Korea, Taiwan, Ukraine, USA, and Vietnam as well as joint participation of the US and Moldova scientists in edition of this book and writing one of its Chapters testify to the unifying effect of science. An interested reader will find in the book the description of properties and applications employing organic and inorganic materials, such as different polymers, oxides and semiconductors, as well as the methods of fabrication and analysis of operation and regions of application of modern optoelectronic devices.