Download or read book Fabrication of Si rich Silicon Carbide Film and Solar Cells by Low Temperature Plasma Enhanced Chemical Vapor Deposition written by 王哲夫 and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Energy Research Vol 1 written by Suneet Singh and published by Springer Nature. This book was released on 2020-05-07 with total page 734 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents selected papers from the 6th International Conference on Advances in Energy Research (ICAER 2017), which cover topics ranging from energy optimization, generation, storage and distribution, and emerging technologies, to energy management, policy, and economics. The book is inter-disciplinary in scope and addresses a host of different areas relevant to energy research, making it of interest to scientists, policymakers, students, economists, rural activists, and social scientists alike.
Download or read book High Density Plasma Enhanced Chemical Vapor Deposition of Si Based Materials for Solar Cell Applications written by H. P. Zhou and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: High-quality and low-cost fabrication of Si-based materials, in which many fundamental and technology problems still remain, have attracted tremendous interests due to their wide applications in solar cell area. Low-frequency inductively coupled plasma (LFICP) provides a new and competitive solution, thanks to its inherent advantages of high-density plasma, low sheath potential, and low electron temperature, et cetera The plasma characteristic-dependent microstructures, optical and electronic properties of the LFICP CVD-based hydrogenated amorphous/microcrystalline silicon and silicon oxides are systematically studied. Remote-LFICP combing the high-density plasma nature of ICP and mild ion bombardment on growing surface in remote plasma allows the deposition of high-quality Si-based materials providing excellent c-Si surface passivation. The mechanism of surface passivation by LFICP CVD Si-based materials, interaction between plasma species and growing surface are analyzed in terms of the plasma properties. These results pave the way for LFICP CVD utilization in Si-based high-efficiency and low-cost solar cell fabrication.
Download or read book Plasma Deposition of Amorphous Silicon Based Materials written by Pio Capezzuto and published by Elsevier. This book was released on 1995-10-10 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiconductors made from amorphous silicon have recently become important for their commercial applications in optical and electronic devices including FAX machines, solar cells, and liquid crystal displays. Plasma Deposition of Amorphous Silicon-Based Materials is a timely, comprehensive reference book written by leading authorities in the field. This volume links the fundamental growth kinetics involving complex plasma chemistry with the resulting semiconductor film properties and the subsequent effect on the performance of the electronic devices produced. Focuses on the plasma chemistry of amorphous silicon-based materials Links fundamental growth kinetics with the resulting semiconductor film properties and performance of electronic devices produced Features an international group of contributors Provides the first comprehensive coverage of the subject, from deposition technology to materials characterization to applications and implementation in state-of-the-art devices
Download or read book Comprehensive Materials Processing written by and published by Newnes. This book was released on 2014-04-07 with total page 5485 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive Materials Processing, Thirteen Volume Set provides students and professionals with a one-stop resource consolidating and enhancing the literature of the materials processing and manufacturing universe. It provides authoritative analysis of all processes, technologies, and techniques for converting industrial materials from a raw state into finished parts or products. Assisting scientists and engineers in the selection, design, and use of materials, whether in the lab or in industry, it matches the adaptive complexity of emergent materials and processing technologies. Extensive traditional article-level academic discussion of core theories and applications is supplemented by applied case studies and advanced multimedia features. Coverage encompasses the general categories of solidification, powder, deposition, and deformation processing, and includes discussion on plant and tool design, analysis and characterization of processing techniques, high-temperatures studies, and the influence of process scale on component characteristics and behavior. Authored and reviewed by world-class academic and industrial specialists in each subject field Practical tools such as integrated case studies, user-defined process schemata, and multimedia modeling and functionality Maximizes research efficiency by collating the most important and established information in one place with integrated applets linking to relevant outside sources
Download or read book High Efficiency Amorphous Silicon Thin Film Solar Cells written by Nowshad Amin and published by LAP Lambert Academic Publishing. This book was released on 2014-06-11 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: The conversion efficiency of a solar cell can substantially be increased by improved material properties and associated designs. In this book, it has been shown that how the parametric optimization can lead to successful design of amorphous silicon thin film solar cells by using a software called AMPS-1D (Analysis of Microelectronic and Photonic Structures) prior to fabrication. Solar cells of single junction based on hydrogenated amorphous (a-Si: H) have been analyzed by using AMPS-1D simulator. The efficiency of single junction a-Si: H can be achieved as high as over 19% after parametric optimization in the simulation. Therefore, the numerically designed and optimized a-SiC: H/a-SiC: H-buffer/a-Si: H/a-Si: H solar cells have been fabricated by using PECVD (plasma enhanced chemical vapor deposition) where the best initial conversion efficiency of 10.02% has been achieved (Voc= 0.88 V, Jsc= 15.57 mA/cm2 and FF= 0.73) as one of the highest recorded efficiency to
Download or read book JJAP Letters written by and published by . This book was released on 2006 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Remote Plasma Chemical Vapor Deposition for High Efficiency Heterojunction Solar Cells on Low Cost Ultra thin Semiconductor on metal Substrates written by Emmanuel U. Onyegam and published by . This book was released on 2014 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the crystalline Si solar cell industry, there is a push to reduce module cost through a combination of thinner substrates and increased cell efficiency. Achieving solar cells with sub-100 [greek small letter mu]m substrates cost-effectively is a formidable task because such thin substrates impose stringent handling requirements and thermal budget due to their flexibility, ease of breakage, and low yield. Moreover, as the substrate thickness decreases the surface passivation quality dictates the performance of the cells. Crystalline Si heterojunction (HJ) solar cells based on hydrogenated amorphous silicon (a-Si:H) have attracted significant interest in recent years due to their excellent surface passivation properties, potential for high efficiency, low thermal budget and low cost. HJ cells with ultra-passivated surfaces showing > 700 mV open-circuit voltages (Voc) and > 20% conversion efficiency have been demonstrated. In these cells, it has been identified that high-quality a-Si:H films deposited by a low-damage plasma process is key to achieving such high cell performance. However, the options for low-damage plasma deposition process are limited. The main objectives of this work are to develop a low-plasma damage a-Si:H thin film deposition process based on remote plasma chemical vapor deposition (RPCVD) and to demonstrate high efficiency HJ solar cells on bulk substrates as well as on ultra-thin silicon and germanium substrates obtained by a novel, low-cost semiconductor-on-metal (SOM) technology. This manuscript presents a detailed description of the RPCVD system and the process leading to the realization of high quality a-Si:H thin films and high efficiency HJ solar cells. First, p-type a-Si:H thin films are developed and optimized, then HJ solar cells are subsequently fabricated on bulk and ultra-thin Si and Ge SOM substrates without intrinsic a-Si:H passivation. Single HJ cells on ~ 500 μm bulk Si and ~25 μm ultra-thin substrates exhibited conversion efficiencies of [greek small letter eta] = 16% (Voc = 615 mV, Jsc = 34 mA/cm2, and FF = 77%) and [greek small letter eta] = 11.2% (Voc = 605 mV, Jsc = 29.6 mA/cm2, and FF = 62.8%), respectively. The performance of the ~25 [greek small letter mu] m cell was further improved to [greek small letter eta] = 13.4% (Voc = 645 mV, Jsc = 31.4 mA/cm2, and FF = 66.2%) by implementing the dual HJ architecture without front side i-layer passivation. For single HJ cells based on Ge substrates, the results were [greek small letter eta] = 1.78 % (Voc = 148 mV, Jsc = 35.1 mA/cm2, and FF = 1.78%) on ~500 [greek small letter mu]m bulk Ge, compared to [greek small letter eta] =5.3% (Voc = 203 mV, Jsc = 44.7 mA/cm2, and FF = 5.28%) on ~ 50 μm Ge SOM substrates. Respectively, the results obtained on ultra-thin SOM substrates are among the highest reported in literature for based on comparable architecture and substrate thickness. In order to achieve improved cell performance, dual HJ cells with i-layer passivation of both surfaces were fabricated. First, optimized RPCVD-based i-layer films were developed by varying the deposition temperature and H2 dilution ratio (R). It was found that excellent surface passivation on planar substrates with as-deposited minority carrier lifetimes > 1 ms is achievable by using deposition temperature of 200 oC and moderate dilution ratio 0.5 ≤ R ≤ 1, even without the more rigorous RCA pre-cleaning process typically used in literature for achieving comparable results. Subsequently, dual HJ solar cells with i-layer films were demonstrated on planar and textured bulk Si substrates showing improved conversion efficiencies of [greek small letter eta] = 17.3% (Voc = 664 mV, Jsc = 34.34 mA/cm2 and FF = 76%) and [greek small letter eta] = 19.4% (Voc = 643 mV, Jsc = 38.99 mA/cm2, and FF = 77.5%), respectively.
Download or read book JJAP written by and published by . This book was released on 2007 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of Thin Film Silicon Solar Cell Using Inkjet Printed Silicon and Other Inkjet Processes written by and published by . This book was released on 2012 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: The cost of silicon photovoltaics (Si-PV) can be greatly lowered by developing thin-film crystalline Si solar cells on glass or an equally lower cost substrate. Typically, Si film is deposited by thermal evaporation, plasma enhanced chemical vapor deposition, and sputtering. NREL and Silexos have worked under a CRADA to develop technology to make very low cost solar cells using liquid organic precursors. Typically, cyclopentasilane (CPS) is deposited on a glass substrate and then converted into an a-Si film by UV polymerization followed by low-temperature optical process that crystallizes the amorphous layer. This technique promises to be a very low cost approach for making a Si film.
Download or read book Thermal Plasma Chemical Vapor Deposition of Silicon Carbide Films written by Feng Liao and published by . This book was released on 2004 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solar Cells written by Arturo Morales-Acevedo and published by BoD – Books on Demand. This book was released on 2013-03-06 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the last decade, photovoltaic (PV) technology has shown the potential to become a major source of power generation for the world - with robust and continuous growth even during times of financial and economic crisis. That growth is expected to continue in the years ahead as worldwide awareness of the advantages of PV increases. However, cost remains as the greatest barrier to further expansion of PV-generated power, and therefore cost reduction is the prime goal of the PV and solar cell investigation. This book intends to contribute to such a purpose by covering a wide range of modern research topics in the solar cell physics and technology fields. The already established -1st generation- silicon solar cell technology, the 2nd generation thin film and the 3rd generation dye sensitized solar cells, including new technologies with very high perspectives for reducing the cost of solar electricity such as CZTS, organic polymer and tandem solar cells based on III-V compounds -under concentrated sunlight- are studied in this book by experts in the field from around the world. At the end, two chapters are also dedicated to the systems engineering, providing a complete PV energy research and application perspectives panorama
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1985 with total page 1346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ceramic Abstracts written by and published by . This book was released on 1999 with total page 950 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plasma Enhanced Chemical Vapor Deposition of Hydrogenated Silicon Carbide Films from Novel Precursors written by Steven Walton Rynders and published by . This book was released on 1991 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt: The influences of precursor molecular structure and electronic properties on the molecular structure, stoichiometry, and optical properties of a-SiC:H alloy films prepared through plasma enhanced chemical vapor deposition were investigated using infrared spectroscopy, ultraviolet-visible absorption spectroscopy, and sputtered neutral atom mass spectrometry (SNMS). Members of the homologous series tetramethylsilane (TeMS), trimethylsilane (TrMS), and dimethylsilane (DMS) as well as methane-silane (MS) were characterized as a-SiC:H precursors. Film structure, optical properties, and stoichiometry were studied as a function of precursor structure and deposition conditions, with deposition pressure serving as the manipulated variable. The infrared spectra of films prepared from the alkylsilane precursors revealed a strong dependence of the film structure on the deposition pressure, with high pressures ($>$0.1 torr) producing linear, polymeric films, and low pressures ($
Download or read book Silicon Carbide Thin Films Via Low Pressure Chemical Vapor Deposition for Micro and Nano electromechanical Systems written by Christopher Stephen Roper and published by . This book was released on 2007 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electrical Electronics Abstracts written by and published by . This book was released on 1997 with total page 2240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
