Download or read book Gallium Arsenide GaAs Solar Cell Modeling Studies written by John H. Heinbockel and published by . This book was released on 1980 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Front and Bottom Texturings on Gallium Arsenide Solar Cell Characteristics written by Phaneendra Bommareddy and published by . This book was released on 2012 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Gallium Arsenide solar cells are of particular interest in many applications due to its advantages over silicon. Its high absorptivity requires a cell that is only few microns thick, compared to silicon. GaAs cells are relatively insensitive to heat and their resistance to radiation also makes the GaAs based cell preferable to Si for extra-terrestrial applications. In this research, the effects of front and bottom texturing on the GaAs solar cell were studied, in particular their effects on the fill factor, open circuit voltage and the short circuit currents were analyzed. Silvaco, an industry standard simulation suite was used for the design and analysis of the various texturing for the GaAs solar cell. In this thesis, five different cell models consisting of the un-textured cell, top, bottom, top and bottom, as well as meta-structures were considered for analysis. Using AM1.5 spectrum with the aid of beam parameter of the simulation software under 1-sun condition, Isc and Voc were obtained. The IV characteristics were plotted for all the models in the presence and absence of light, providing light and dark currents for the cell. Maximum power generated in the device was measured and the Fill Factor calculated. The texturing's were considered on the window layer and above the gold mirror layer for top and bottom texturing's respectively, with In0.5Ga0.5P and also with a combination of alternating metal dielectric slabs forming a meta structure over a gold layer on the window layer. Results for these designs showed that the performance of various GaAs solar cells with In0.5Ga0.5P texturing on the top has better device characteristics compared to other designs.
Download or read book GaAs Solar Cell Radiation Handbook written by B. E. Anspaugh and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Novel Approach to Modeling the Effects of Radiation in Gallium Arsenide Solar Cells Using Silvaco s ATLAS Software written by Aaron L. Crespin and published by . This book was released on 2004-09-01 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of radiation in GaAs solar cells has been extensively researched and the results of numerous investigation have yielded a considerable amount of information about the degradation in irradiated solar cells. This thesis establishes a novel method in which to use Silvaco's physically-based device simulator, ATLAS, to model the effects of radiation on solar cell output characteristics. A virtual model representing a single junction GaAs solar cell was created in ATLAS. The effects of radiation were modeled using carrier trapping statements representing the defects associated with various fluence levels of 1 MeV electron radiation which were characterized with Deep Level Transient Spectroscopy techniques. The resulting output characteristics of the virtual solar cell, illuminated with a simulated AM0 spectrum, were compared to published experimental measurements for GaAs solar cells of the same dimensions. The virtual solar cell demonstrated a good correlation between the measured and virtual solar cell output characteristics and accurate representation of the spectral response. Complete ATLAS and MATLAB codes are included in appendices.
Download or read book A Simple Model of Space Radiation Damage in Gaas Solar Cells written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-08-20 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: A simple model is derived for the radiation damage of shallow junction gallium arsenide (GaAs) solar cells. Reasonable agreement is found between the model and specific experimental studies of radiation effects with electron and proton beams. In particular, the extreme sensitivity of the cell to protons stopping near the cell junction is predicted by the model. The equivalent fluence concept is of questionable validity for monoenergetic proton beams. Angular factors are quite important in establishing the cell sensitivity to incident particle types and energies. A fluence of isotropic incidence 1 MeV electrons (assuming infinite backing) is equivalent to four times the fluence of normal incidence 1 MeV electrons. Spectral factors common to the space radiations are considered, and cover glass thickness required to minimize the initial damage for a typical cell configuration is calculated. Rough equivalence between the geosynchronous environment and an equivalent 1 MeV electron fluence (normal incidence) is established. Wilson, J. W. and Stith, J. J. and Stock, L. V. Langley Research Center NASA-TP-2242, L-15689, NAS 1.60:2242 ...
Download or read book Material Models and Device Structures for GaAs Solar Cells written by Christine M. Maziar and published by . This book was released on 1984 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gallium arsenide as a solar cell material has received much attention because of its promise of high conversion efficiencies. Advantages of GaAs over Si as a photovoltaic material include 1) a bandgap that is better matched to the solar spectrum, 2) superior performance at high operating temperatures, and 3) radiation resistance properties. This work has been primarily directed at developing and assembling models for material parameters for GaAs relevant to photovoltaic applications, as well as identifying those material parameters and properties requiring further experimental and theoretical investigation.
Download or read book Material models and device structures for GaAs solar cells written by Christine M. Maziar and published by . This book was released on 1984 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gallium arsenide as a solar cell material has received much attention because of its promise of high conversion efficiencies. Advantages of GaAs over Si as a photovoltaic material include 1) a bandgap that is better matched to the solar spectrum, 2) superior performance at high operating temperatures, and 3) radiation resistance properties. This work has been primarily directed at developing and assembling models for material parameters for GaAs relevant to photovoltaic applications, as well as identifying those material parameters and properties requiring further experimental and theoretical investigation.
Download or read book Advanced Solar Cell Materials Technology Modeling and Simulation written by Fara, Laurentiu and published by IGI Global. This book was released on 2012-07-31 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: While measuring the effectiveness of solar cell materials may not always be practical once a device has been created, solar cell modeling may allow researchers to obtain prospective analyses of the internal processes of potential materials prior to their manufacture. Advanced Solar Cell Materials, Technology, Modeling, and Simulation discusses the development and use of modern solar cells made from composite materials. This volume is targeted toward experts from universities and research organizations, as well as young professionals interested in pursuing different subjects regarding advanced solar cells.
Download or read book Generative Modeling and Sensitivity Analysis of Gallium Arsenide based Solar Cell Device Processes written by Maryam Molamohammadi and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "Modeling and process optimization of solar cell devices is a complex procedure due to the high-dimensional parameter space. Moreover, the need for enhancing renewable energy market share is an undeniable fact. Machine learning is rapidly emerging in many fields while providing a promising toolbox for researchers to study complex problems more efficiently. Traditionally, research in materials science has involved a trial-and-error process that often requires various resources. With the help of machine learning, we can explore the high-dimensional problems with improved accuracy and efficiency and fewer user-imposed assumptions.This thesis presents the modeling and sensitivity analysis of GaAs-based (Gallium arsenide-based) solar cell device processes. We propose a unifying framework for learning a solar cell performance function while providing intuitive interpretations based on the sensitivity analysis of the cell performance with respect to the material variables. In fact, this framework would be a faster and more computationally efficient replacement for its equivalent simulator in a downstream task of sensitivity analysis and consequently design optimization. We use the conditional variational autoencoder and multilayer perceptron for the generative modeling task and Jacobian-based sensitivity indices for the sensitivity analysis task. Furthermore, in the results, we validate our modeling approach with a baseline multilayer perceptron and our sensitivity analysis method with a sampling-based sensitivity analysis approach. We further demonstrate how the sensitivity analysis can be potentially useful from the design perspective as well as interpretability of possible device underperformance"--
Download or read book Performance comparison of top and bottom contact gallium arsenide GaAs solar cell written by Naresh C. Das and published by . This book was released on 2014 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Simple Model of Space Radiation Damage in GaAs Solar Cells written by John William Wilson and published by . This book was released on 1983 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Simple Model of Space Radiation Damage in GaAs Solar Cells written by John William Wilson and published by . This book was released on 1983 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thin films of gallium arsenide on low cost substrates written by Rockwell International. Electronics Research Center and published by . This book was released on 1979 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electrical and Electronic Devices Circuits and Materials written by Suman Lata Tripathi and published by John Wiley & Sons. This book was released on 2021-03-24 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: The increasing demand for electronic devices for private and industrial purposes lead designers and researchers to explore new electronic devices and circuits that can perform several tasks efficiently with low IC area and low power consumption. In addition, the increasing demand for portable devices intensifies the call from industry to design sensor elements, an efficient storage cell, and large capacity memory elements. Several industry-related issues have also forced a redesign of basic electronic components for certain specific applications. The researchers, designers, and students working in the area of electronic devices, circuits, and materials sometimesneed standard examples with certain specifications. This breakthrough work presents this knowledge of standard electronic device and circuit design analysis, including advanced technologies and materials. This outstanding new volume presents the basic concepts and fundamentals behind devices, circuits, and systems. It is a valuable reference for the veteran engineer and a learning tool for the student, the practicing engineer, or an engineer from another field crossing over into electrical engineering. It is a must-have for any library.
Download or read book Third Working Meeting on Gallium Arsenide Solar Cells written by and published by . This book was released on 1976 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Physics and Modeling of Gallium arsenide Solar Cells written by Paul David DeMoulin and published by . This book was released on 1988 with total page 181 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 1994 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:
