Download or read book Ultrashort Laser Pulses for Electrical Characterization of Solar Cells written by Markus Mundus and published by BoD – Books on Demand. This book was released on 2016-09-29 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ability to provide highly accurate performance evaluations of photovoltaic devices has never been more important given the recent, and anticipated, progress in photovoltaics. The lowest possible measurement uncertainties are required for reliably assessing technological advances and reducing investment uncertainty. As the further reduction of these uncertainties within conventional solar cell measurements is often hindered by the measurement setups themselves, innovative approaches in the development of new measurement facilities are vital. This thesis addresses such demand by applying ultrashort laser pulses for highly accurate solar cell characterization. Based on a detailed investigation of pulse-solar cell interaction, a setup for spectral responsivity measurements is developed. This cutting-edge measurement setup substantially outperforms current state-of-the-art facilities in terms of measurement accuracy. Furthermore, a novel measurement approach is presented that takes advantage of spectrally shaped supercontinuum radiation. Imitating standard solar spectra with the shaped supercontinuum radiation promises a quicker and more accurate measurement of the solar cell s short circuit current than is presently possible using conventional methods.
Download or read book Sustainable Design for Renewable Processes written by Mariano Martin and published by Elsevier. This book was released on 2021-10-31 with total page 685 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sustainable Design for Renewable Processes: Principles and Case Studies covers the basic technologies to collect and process renewable resources and raw materials and transform them into useful products. Starting with basic principles on process analysis, integration and optimization that also addresses challenges, the book then discusses applied principles using a number of examples and case studies that cover biomass, waste, solar, water and wind as resources, along with a set of technologies including gasification, pyrolysis, hydrolysis, digestion, fermentation, solar thermal, solar photovoltaics, electrolysis, energy storage, etc. The book includes examples, exercises and models using Python, Julia, MATLAB, GAMS, EXCEL, CHEMCAD or ASPEN. This book shows students the challenges posed by renewable-based processes by presenting fundamentals, case studies and step-by-step analyses of renewable resources. Hence, this is an ideal and comprehensive reference for Masters and PhD students, engineers and designers. Addresses the fundamentals and applications of renewable energy process design for all major resources, including biomass, solar, wind, geothermal, waste and water Provides detailed case studies, step-by-step instructions, and guidance for each renewable energy technology Presents models and simulations for a wide variety of platforms, including state-of-the-art and open access platforms in addition to well-known commercial software
Download or read book Laser Cutting and Micromachining for Localized and Targeted Solar Cell Characterization written by and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laser cutting and micromachining can be applied to solar cell materials for processing and characterization applications. An ultrashort pulse (USP) laser with sub-picosecond pulse width can remove material with minimal thermal effects or damage, which is termed 'cold ablation'. Such USP laser cutting and scribing can be implemented for isolating areas within a larger cell while maintaining electrical performance and preventing laser-induced damage and shunting. Laser micromachining has been used to isolate a shunt to improve cell performance and to isolate a small, selected area to define a sample suitable for deep level transient spectroscopy.
Download or read book Characterization of Ultrashort Laser Pulses written by Steven P. Jensen and published by . This book was released on 2001 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultrashort Pulse Lasers and Ultrafast Phenomena written by Takayoshi Kobayashi and published by CRC Press. This book was released on 2023-03-21 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduces the basics of nonlinear optics which provides the generation and measurement of ultrashort pulse lasers Explains basic physical principle of ultrashort pulse laser construction Describes detailed structure of the world shortest visible laser and DUV lasers Introduces the scheme of ultrafast spectroscopy using the ultrashort pulse lasers Provides several examples of the applications of ultrafast spectroscopy to solid state materials
Download or read book Ultrashort Laser Pulses and Applications written by D. H. Auston and published by Springer. This book was released on 1988 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultrafast Laser Nanostructuring written by Razvan Stoian and published by Springer Nature. This book was released on 2023-04-06 with total page 1243 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bringing together contributions from leading experts in the field, this book reviews laser processing concepts that allow the structuring of material beyond optical limits, and methods that facilitate direct observation of the underlying mechanisms by exploring direct structuring and self-organization phenomena. The capacity to nanostructure material using ultrafast lasers lays the groundwork for the next generation of flexible and precise material processing tools. Rapid access to scales of 100 nm and below in two and three dimensions becomes a factor of paramount importance to engineer materials and to design innovative functions. To reflect the dynamic nature of the field at all levels from basic science to applications, the book is divided into three parts, Fundamental Processes, Concepts of Extreme Nanostructuring, and Applications, each of which is comprehensively covered. This book will be a useful resource for graduate students and researchers in laser processing, materials engineering, and nanoscience.
Download or read book Evaluation of Four Imaging Techniques for the Electrical Characterization of Solar Cells Presentation written by and published by . This book was released on 2008 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: The imaging techniques enable the possibility of higher-level quality control and defect analysis of solar cell materials in in-line production processes.
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 974 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laser Processing and Chemistry written by Dieter Bäuerle and published by Springer Science & Business Media. This book was released on 2011-09-02 with total page 846 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laser Processing and Chemistry gives an overview of the fundamentals and applications of laser-matter interactions, in particular with regard to laser material processing. Special attention is given to laser-induced physical and chemical processes at gas-solid, liquid-solid, and solid-solid interfaces. Starting with the background physics, the book proceeds to examine applications of laser techniques in micro-machining, and the patterning, coating, and modification of material surfaces. This fourth edition has been revised and enlarged to cover new topics such as 3D microfabrication, advances in nanotechnology, ultrafast laser technology and laser chemical processing (LCP). Graduate students, physicists, chemists, engineers, and manufacturers alike will find this book an invaluable reference work on laser processing.
Download or read book Commercial Applications of Ultrafast Lasers written by Murray K. Reed and published by SPIE-International Society for Optical Engineering. This book was released on 1998 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Divided into four sections, these conference papers cover: ultrafast lasers; material processing with ultrafast lasers; biomedical applications of ultrafast lasers; and terahertz radiation generation and application.
Download or read book Evaluation of Four Imaging Techniques for the Electrical Characterization of Solar Cells written by and published by . This book was released on 2008 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: We evaluate four techniques that image minority-carrier lifetime, carrier diffusion length, and shunting in solar cells. The techniques include photoluminescence imaging, carrier-density imaging, electroluminescence imaging, and dark lock-in thermography shunt detection. We compare these techniques to current industry standards and show how they can yield similar results with higher resolution and in less time.
Download or read book Carbon Based Nanocarriers for Drug Delivery written by Mihir Kumar Purkait and published by CRC Press. This book was released on 2023-10-12 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon-Based Nanocarriers for Drug Delivery enlists the latitudes and advancements in the synthesis processes, functionalization, and applications of carbon-based nanomaterials (CBNs) in targeted drug delivery systems (DDSs). It covers the applicability and suitability of CBNs as nanocarriers for efficient drug delivery application via elucidating the recent advancements in CBNs, their functionalized and innovative derivatives, and the relevant case studies. The book explores the necessity, efficacy, toxicological aspects, and challenges for the application of CBN in targeted DDSs. Some of the features of this book are provided as follows: Provides elaborative description on significance and adaptability of carbon-based nanomaterial in targeted drug delivery for wide ranges of therapeutics Delivers a full-spectrum discussion on drug delivery through carbon-based nanocarriers Explores each carbon-based nanocarrier fundamentally for its drug and gene-delivery-related applications Describes critical discussion on various toxicological effects over the utilization of these nanocarriers Embraces existing as well as novel technologies/methodologies related to the synthesis and functionalization of CBNs, including graphene, graphene oxide, carbon quantum dots, carbon nanotube, fullerene, and smart carbon-based nanocarriers This book is aimed at researchers and graduate students in materials and pharmaceutical engineering, including drug delivery systems.
Download or read book Anti Abrasive Nanocoatings written by M Aliofkhazraei and published by Elsevier. This book was released on 2014-12-09 with total page 627 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an overview of the fabrication methods for anti-abrasive nanocoatings. The connections among fabrication parameters, the characteristics of nanocoatings and the resulting properties (i.e. nanohardness, toughness, wear rate, load-bearing ability, friction coefficient, and scratch resistance) are discussed. Size-affected mechanical properties of nanocoatings are examined, including their uses. Anti-abrasive nanocoatings, including metallic-, ceramic-, and polymeric-based layers, as well as different kinds of nanostructures, such as multi-layered nanocomposites and thin films, are reviewed. Provides a comprehensive overview of the fabrication methods for anti-abrasive nanocoatings Discusses the connections among fabrication parameters, the characteristics of nanocoatings and the resulting properties Reviews advantages and drawbacks of fabrication methods for anti-abrasive nanocoatings and clarifies the place of these nanocoatings in the world of nanotechnology
Download or read book Solar Cells written by Ahmed Mourtada Elseman and published by BoD – Books on Demand. This book was released on 2021-09-22 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solar cell energy is the single most pressing issue facing humanity, with a more technologically advanced society requiring better energy resources. This book discusses technologies broadly, depending on how they capture and distribute solar energy or convert it into solar power. The major areas covered in this book are: • The theory of solar cells, which explains the conversion of light energy in photons into electric current. The theoretical studies are practical because they predict the fundamental limits of a solar cell. • The design and development of thin-film technology-based solar cells. • State of the art for bulk material applied for solar cells based on crystalline silicon (c-Si), also known as “solar grade silicon,” and emerging photovoltaics.
Download or read book Correlative Elemental and Electrical Micro analysis of Laser Fired Contacts in Silicon Solar Cells written by Patricia Yen (S.M.) and published by . This book was released on 2016 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photovoltaic (PV) energy is an abundant and clean alternative to conventional energy sources, which pose an irreversible threat to the environment. For PV to reach cost parity with conventional energy, advances like laser-fired contacts must be adopted to improve cost levers like solar cell efficiency and industrial throughput. This work examines the relationship between laser-processing on the structure and property of solar cells, with the goal of (1) characterizing the differences between using two lasers simultaneously (double-shot lasing) versus a single laser for LFC processing, and (2) using the new findings to optimize industrial LFC efforts. Electrical properties such as lifetime degradation and contact resistance are evaluated using photoluminescence imaging and transmission line measurements, respectively. LFC structures are studied using scanning electron microscope and elemental mapping tools like micro-X-ray fluorescence microscopy and energy dispersive spectroscopy. For the conditions studied, it is unclear whether double-shot lasing can produce higher-quality LFCs than single-shot lasing, although results suggest that the infrared laser influences electrical properties more than the green laser. For future LFC optimization, the [mu]-XRF maps of elemental distribution may offer a novel way to evaluate LFC formation.
