Download or read book Spectral Enhancement of Organic Photodetectors written by Rauch, Tobias and published by KIT Scientific Publishing. This book was released on 2014-06-24 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solution-processed photodiodes with infrared sensitivities at wavelengths beyond the bandgap of silicon would be a significant advance towards cost-effective imaging. Colloidal quantum dots are highly suitable as infrared absorbers for photodetection. The concept of organic bulk heterojunctions sensitized with PbS nanocrystalline was proved with efficient near-infrared detection up to 1.8 mm for NIR imaging on active matrix TFT backplanes and demonstrated x-ray sensitivity.
Download or read book Polymers in Organic Electronics written by Sulaiman Khalifeh and published by Elsevier. This book was released on 2020-04-01 with total page 617 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymers in Organic Electronics: Polymer Selection for Electronic, Mechatronic, and Optoelectronic Systems provides readers with vital data, guidelines, and techniques for optimally designing organic electronic systems using novel polymers. The book classifies polymer families, types, complexes, composites, nanocomposites, compounds, and small molecules while also providing an introduction to the fundamental principles of polymers and electronics. Features information on concepts and optimized types of electronics and a classification system of electronic polymers, including piezoelectric and pyroelectric, optoelectronic, mechatronic, organic electronic complexes, and more. The book is designed to help readers select the optimized material for structuring their organic electronic system.Chapters discuss the most common properties of electronic polymers, methods of optimization, and polymeric-structured printed circuit boards. The polymeric structures of optoelectronics and photonics are covered and the book concludes with a chapter emphasizing the importance of polymeric structures for packaging of electronic devices. Provides key identifying details on a range of polymers, micro-polymers, nano-polymers, resins, hydrocarbons, and oligomers Covers the most common electrical, electronic, and optical properties of electronic polymers Describes the underlying theories on the mechanics of polymer conductivity Discusses polymeric structured printed circuit boards, including their rapid prototyping and optimizing their polymeric structures Shows optimization methods for both polymeric structures of organic active electronic components and organic passive electronic components
Download or read book Spectral Photoresponse Tuning and Enhancement in Organic Ultraviolet Photodetectors Through Active Layer Optimization and Plasmonic Nanostructures written by Monica R. Esopi and published by . This book was released on 2019 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultraviolet photodetectors are important in a wide variety of applications including scientific measurement, environmental monitoring, imaging, and flame and missile detection. Organic active materials offer a low-cost, flexible, solution-processable alternative to inorganic materials. Strong, sensitive photoresponse with wavelength selectivity and tunability is highly desired, and can be achieved through material selection, active layer manipulation, and plasmonic nanostructure incorporation. In this work, 3D-finite-difference time domain (FDTD) electromagnetic simulations, transfer-matrix method (TMM) optical simulations, and experimental approaches were integrated to understand the relationship between physical parameters, underlying device physics, and photoresponse mechanisms to develop organic UV photodetectors with strong, sensitive, tunable photoresponse. Conventional organic photodiodes with active layers composed of blends of wide bandgap polymers and fullerene derivatives or ZnO nanoparticles were used to achieve strong and narrowband UV photoresponse via the mechanisms of photomultiplication and charge collection narrowing (CCN). By reducing the content of [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM) in a polymer poly(9,9-dioctylfluorene-alt-bithiophene) (F8T2) active layer, isolated PC71BM clusters were formed and trapped electrons near the device cathode, resulting in band bending and hole injection, thus enabling multiple holes to be collected per incident photon and achieving photomultiplication. A peak EQE of 5600%, under 360 nm illumination and -40 V bias, was achieved by devices utilizing a 100:4 w:w blend of F8T2:PC71BM. Devices with active layers composed of poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine] (PTAA) and ZnO nanoparticles had photoresponse that could be tuned from broad and photomultiplicative to spectrally narrowband by using thin and thick active layers, respectively, via the CNN mechanism. A single EQE peak at 424 nm with a full-width at half-maximum of just 12 nm was demonstrated when a thick active layer was used. UV photoresponse was further tuned and enhanced by incorporating Al plasmonic nanostructure arrays, either as a transparent bottom electrode or a top electrode in conventional UV photodetectors. Al nanohole arrays (Al-NHAs) were incorporated into UV photodetectors as transparent electrodes and the resulting photoresponse spectra varied from having two peaks under reverse bias to a distinct, single peak under forward bias. This novel bias-dependent photoresponse switching was enabled by plasmonic enhancements to the electric field in the active layer, which acted as an additional forward bias in Al-NHA-based devices. Plasmonic Al nanostructures were also incorporated into the top device electrode in the form of a nanohemisphere array (NHSA) to engage the mechanisms of light scattering and electric field enhancement, which improve the strength and speed of photoresponse. This work sheds light on the improvement of UV photodetection through active layer optimization and plasmonic nanostructure incorporation, and opens up avenues to develop sensitive, spectrally selective photodetectors to meet the expanding photodetection needs of modern technology.
Download or read book Spectral Tunable Organic Near infrared Photodetectors written by Zhaojue Lan and published by . This book was released on 2020 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optoelectronic Nanodevices written by Minas M. Stylianakis and published by MDPI. This book was released on 2020-04-15 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the last decade, novel graphene related materials (GRMs), perovskites, as well as metal oxides and other metal nanostructures have received the interest of the scientific community. Due to their extraordinary physical, optical, thermal, and electrical properties, which are correlated with their 2D ultrathin atomic layer structure, large interlayer distance, ease of functionalization, and bandgap tunability, these nanomaterials have been applied in the development or the improvement of innovative optoelectronic applications, as well as the expansion of theoretical studies and simulations in the fast-growing fields of energy (photovoltaics, energy storage, fuel cells, hydrogen storage, catalysis, etc.), electronics, photonics, spintronics, and sensing devices. The continuous nanostructure-based applications development has provided the ability to significantly improve existing products and to explore the design of materials and devices with novel functionalities. This book demonstrates some of the most recent trends and advances in the interdisciplinary field of optoelectronics. Most articles focus on light emitting diodes (LEDs) and solar cells (SCs), including organic, inorganic, and hybrid configurations, whereas the rest address photodetectors, transistors, and other well-known dynamic optoelectronic devices. In this context, this exceptional collection of articles is directed at a broad scientific audience of chemists, materials scientists, physicists, and engineers, with the goals of highlighting the potential of innovative optoelectronic applications incorporating nanostructures and inspiring their realization.
Download or read book Organic and Inorganic Materials Based Sensors 3 Volumes written by Sangita Das and published by John Wiley & Sons. This book was released on 2023-12-22 with total page 1409 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organic and Inorganic Materials Based Sensors A three-volume comprehensive overview of the development and applications of various novel potent molecular sensor frameworks In Organic and Inorganic Materials Based Sensors (3 Volume Set), a team of distinguished researchers delivers an interdisciplinary presentation of the engineering of high-performance biopolymer-based bio-nanocomposites, as well as strategies for the use of various molecules in the detection of environmentally important guest analytes. This three-volume book explores the most relevant technological developments in nanomaterials sensors and offers a broad and comprehensive overview of cutting-edge research on advanced materials in the fast-moving sensors industry. The authors explain the science behind nanomaterials for environmental remediation as well as the components and ingredients of the relevant materials. Readers will also find: Thorough introductions to sensory devices, polymer-based nano-biomaterials, and opto-electrochemical devices Comprehensive explorations of metal–organic frameworks, organic sensors, and organic–inorganic composite semiconductor sensors Practical discussions of vapochromic and vapoluminescent sensors Fulsome treatments of sensor ecosystems for health self-monitoring, including discussions of diabetes management Perfect for materials scientists, mechanical engineers, and analytical chemists, Organic and Inorganic Materials Based Sensors will also benefit inorganic and organic chemists, robotics engineers, and professionals working in the sensor industry.
Download or read book Organic Semiconductor Devices for Light Detection written by Jonas Kublitski and published by Springer Nature. This book was released on 2022-03-03 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent decades, the way human beings interact with technology has been significantly transformed. In our daily life, ever fewer manually controlled devices are used, giving way to automatized houses, cars, and devices. A significant part of this technological revolution relies on signal detection and evaluation, placing detectors as core devices for further technological developments. This book introduces a versatile contribution to achieving light sensing: Organic Semiconductor Devices for Light Detection. The text is organized to guide the reader through the main concepts of light detection, followed by a introduction to the semiconducting properties of organic molecular solids. The sources of non-idealities in organic photodetectors are presented in chapter 5, and a new device concept, which aims to overcome some of the limitation discussed in the previous chapters, is demonstrated. Finally, an overview of the field is given with a selection of open points for future investigation.
Download or read book Photodetectors written by Bahram Nabet and published by Woodhead Publishing. This book was released on 2023-02-10 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: Every bit of information that circulates the internet across the globe is a pulse of light, that at some point will need to be converted to an electric signal in order to be processed by the electronic circuitry in our data centers, computers, and cell phones. Photodetectors (PD’s) perform this conversion with ultra high speed and efficiency, in addition to being ubiquitously present in many other devices ranging from the mundane TV remote controls, to ultra high resolution instrumentation used in Laser Interferometer Gravitational Wave Observatory (LIGO) that reach the edge of the universe and measure gravitational waves. The second edition of "Photodetectors" fully updates the popular first edition with updated information covering the state-of-the-art in modern photodetectors. The 2nd edition starts with basic metrology of photodetectors and common figures-of-merit to compare various devices. It follows with chapters that discuss single-photon detection with Avalanche Photodiodes; organic photodetectors that can be inkjet printed; and silicon-germanium PDs popular in burgeoning field of Silicon Photonics. Internationally recognized experts contribute chapters on one-dimensional, nanowire, PDs as well as high speed zero-dimensional, quantum dot, versions that increase the spectral span as well as speed and sensitivity of PDs and can be produced on various substrates. Solar-blind PDs that operate in harsh environments such as deep space, or rocket engines, are reviewed and new devices in GaN technology . Novel Plasmonic PDs, as well as devices which employ micro-plasma of confined charge in order to make devices that overcome speed limitation of transfer of electronic charge, are covered in other chapters. Using different, novel technologies, CMOS compatible devices are described in two chapters, and ultra high speed PDs that use low-temperature-grown GaAs (LT-GaAs) to detect fast THz signals are reviewed in another chapter. Photodetectors used in application areas of Silicon-Photonics and Microwave-Photonics are reviewed in final chapters of this book. All chapters are of a review nature, providing a perspective of the field before concentrating on particular advancements. As such, the book should appeal to a wide audience that ranges from those with general interest in the topic, to practitioners, graduate students and experts who are interested in the state-of-the-art in photodetection. Addresses various photodetector devices from ultra high speed to ultra high sensitivity, capable of operation in harsh environments Considers a range of applications for this important technology, including silicon photonics and photonic integrated circuits Includes discussions of detectors based on reduced dimensional systems such as quantum wells, nanowires, and quantum dots, as well as travelling wave, and plasmonic detectors
Download or read book Photodetectors written by and published by Woodhead Publishing. This book was released on 2015-10-24 with total page 551 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photodetectors: Materials, Devices and Applications discusses the devices that convert light to electrical signals, key components in communication, computation, and imaging systems. In recent years, there has been significant improvement in photodetector performance, and this important book reviews some of the key advances in the field. Part one covers materials, detector types, and devices, and includes discussion of silicon photonics, detectors based on reduced dimensional charge systems, carbon nanotubes, graphene, nanowires, low-temperature grown gallium arsenide, plasmonic, Si photomultiplier tubes, and organic photodetectors, while part two focuses on important applications of photodetectors, including microwave photonics, communications, high-speed single photon detection, THz detection, resonant cavity enhanced photodetection, photo-capacitors and imaging. Reviews materials, detector types and devices Addresses fabrication techniques, and the advantages and limitations and different types of photodetector Considers a range of application for this important technology Includes discussions of silicon photonics, detectors based on reduced dimensional charge systems, carbon nanotubes, graphene, nanowires, and more
Download or read book Advances in VLSI Communication and Signal Processing written by Amit Dhawan and published by Springer Nature. This book was released on 2022-10-04 with total page 749 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprises select peer-reviewed proceedings of the International Conference on VLSI, Communication and Signal processing (VCAS 2021). The contents focus on the latest research in different domains of electronics and communication engineering, in particular microelectronics and VLSI design, communication systems and networks, and signal and image processing. The book discusses the emerging applications of novel tools and techniques in image, video, and multimedia signal processing. This book will be useful to students, researchers, and professionals working in electronics and communication.
Download or read book Advances in Photodiodes written by Gian-Franco Dalla Betta and published by BoD – Books on Demand. This book was released on 2011-03-22 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photodiodes, the simplest but most versatile optoelectronic devices, are currently used in a variety of applications, including vision systems, optical interconnects, optical storage systems, photometry, particle physics, medical imaging, etc. Advances in Photodiodes addresses the state-of-the-art, latest developments and new trends in the field, covering theoretical aspects, design and simulation issues, processing techniques, experimental results, and applications. Written by internationally renowned experts, with contributions from universities, research institutes and industries, the book is a valuable reference tool for students, scientists, engineers, and researchers.
Download or read book Modelling and Design of Nanostructured Optoelectronic Devices written by Jagdish A. Krishnaswamy and published by Springer Nature. This book was released on 2022-04-02 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book approaches the design of functionally superior optoelectronic devices through the use of bio-inspired nanostructures and multiscale material structures through a step-by-step approach. The book combines both the fundamental theoretical concepts involved in understanding and numerically modelling optoelectronic devices and the application of such methods in addressing challenging research problems in nanostructured optoelectronic design and fabrication. The book offers comprehensive content in optoelectronic materials and engineering and can be used as a reference material by researchers in nanostructured optoelectronic design.
Download or read book Encyclopedia of Optical and Photonic Engineering Print Five Volume Set written by Craig Hoffman and published by CRC Press. This book was released on 2015-09-22 with total page 3726 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first edition of the Encyclopedia of Optical and Photonic Engineering provided a valuable reference concerning devices or systems that generate, transmit, measure, or detect light, and to a lesser degree, the basic interaction of light and matter. This Second Edition not only reflects the changes in optical and photonic engineering that have occurred since the first edition was published, but also: Boasts a wealth of new material, expanding the encyclopedia’s length by 25 percent Contains extensive updates, with significant revisions made throughout the text Features contributions from engineers and scientists leading the fields of optics and photonics today With the addition of a second editor, the Encyclopedia of Optical and Photonic Engineering, Second Edition offers a balanced and up-to-date look at the fundamentals of a diverse portfolio of technologies and discoveries in areas ranging from x-ray optics to photon entanglement and beyond. This edition’s release corresponds nicely with the United Nations General Assembly’s declaration of 2015 as the International Year of Light, working in tandem to raise awareness about light’s important role in the modern world. Also Available Online This Taylor & Francis encyclopedia is also available through online subscription, offering a variety of extra benefits for researchers, students, and librarians, including: Citation tracking and alerts Active reference linking Saved searches and marked lists HTML and PDF format options Contact Taylor and Francis for more information or to inquire about subscription options and print/online combination packages. US: (Tel) 1.888.318.2367; (E-mail) [email protected] International: (Tel) +44 (0) 20 7017 6062; (E-mail) [email protected]
Download or read book Polymer Nanocomposite Materials written by Ye Zhou and published by John Wiley & Sons. This book was released on 2021-03-17 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymer Nanocomposite Materials Discover an authoritative overview of zero-, one-, and two-dimensional polymer nanomaterials Polymer Nanocomposite Materials: Applications in Integrated Electronic Devices delivers an original and insightful treatment of polymer nanocomposite applications in energy, information, and biotechnology. The book systematically reviews the preparation and characterization of polymer nanocomposites from zero-, one-, and two-dimensional nanomaterials. The two distinguished editors have selected resources that thoroughly explore the applications of polymer nanocomposites in energy, information, and biotechnology devices like sensors, solar cells, data storage devices, and artificial synapses. Academic researchers and professional developers alike will enjoy one of the first books on the subject of this environmentally friendly and versatile new technology. Polymer Nanocomposite Materials discusses challenges associated with the devices and materials, possible strategies for future directions of the technology, and the possible commercial applications of electronic devices built on these materials. Readers will also benefit from the inclusion of: A thorough introduction to the fabrication of conductive polymer composites and their applications in sensors An exploration of biodegradable polymer nanocomposites for electronics and polymer nanocomposites for photodetectors Practical discussions of polymer nanocomposites for pressure sensors and the application of polymer nanocomposites in energy storage devices An examination of functional polymer nanocomposites for triboelectric nanogenerators and resistive switching memory Perfect for materials scientists and polymer chemists, Polymer Nanocomposite Materials: Applications in Integrated Electronic Devices will also earn a place in the libraries of sensor developers, electrical engineers, and other professionals working in the sensor industry seeking an authoritative one-stop reference for nanocomposite applications.
Download or read book Organic Narrowband Photodetectors written by PECUNIA and published by IOP Publishing Limited. This book was released on 2020-03-28 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the first standalone title on organic narrowband photodetectors, providing a comprehensive and up-to-date overview of the field and its applications. Organic Narrowband Photodetectors will benefit researchers and practitioners in optoelectronics, organic semiconductors, and related fields, as well as technology enthusiasts and students in physics, electronics engineering, chemistry, and material science.
Download or read book Organic Solar Cells written by Pankaj Kumar and published by CRC Press. This book was released on 2016-10-03 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains detailed information on the types, structure, fabrication, and characterization of organic solar cells (OSCs). It discusses processes to improve efficiencies and the prevention of degradation in OSCs. It compares the cost-effectiveness of OSCs to those based on crystalline silicon and discusses ways to make OSCs more economical. This book provides a practical guide for the fabrication, processing, and characterization of OSCs and paves the way for further development in OSC technology.
Download or read book Excitonic and Photonic Processes in Materials written by Jai Singh and published by Springer. This book was released on 2014-07-29 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is expected to present state-of-the-art understanding of a selection of excitonic and photonic processes in useful materials from semiconductors to insulators to metal/insulator nanocomposites, both inorganic and organic. Among the featured applications are components of solar cells, detectors, light-emitting devices, scintillators and materials with novel optical properties. Excitonic properties are particularly important in organic photovoltaics and light emitting devices, as also in questions of the ultimate resolution and efficiency of new-generation scintillators for medical diagnostics, border security and nuclear non proliferation. Novel photonic and optoelectronic applications benefit from new material combinations and structures to be discussed.
