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US Photovoltaic Patents, 1988--1990

Description: This document contains US patents on terrestrial photovoltaic (PV) power applications, including systems, components, and materials, as well as manufacturing and support functions. The patent entries in this document were issued from 1988 through 1990. The entries were located by searching USPA, the data base of the US Patent Office. The final search retrieved all patents under the class Batteries, Thermoelectric and Photoelectric'' and the subclasses Photoelectric,'' Testing,'' and Application… more
Date: December 1, 1991
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Structure and Effects of Extended Defects in Polycrystalline Si Thin Films

Description: The structure and effects of extended defects in rapid deposited polycrystalline Si thin films were studied using a combination of high-resolution transmission electron microscopy and first-principles total energy calculations.
Date: January 1, 2000
Creator: Yan, Y.; Al-Jassim, M. M.; Wang, T. H. & Ciszek, T. F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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A Mixed Method Approach: The Influence of Military Identity on Person-Organization Fit and Organizational Commitment, and a Proposed System of Military to Civilian Employment Transition

Description: The evaluation of the transition experiences of veterans to civilian life was conducted. The military to civilian transition (MCT) framework along with theories covering organizational, identity, and systems streams of research situated the study. A mixed methods approach was conducted in two phases: a 28-item survey and 1.5-hour interviews, which helped contextualize and explain survey findings. The multiple regression procedure examined the relationship among three variables: person-organizat… more
Date: May 2023
Creator: Doyle, Alaina M.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Integrated Deployment and the Energy Systems Integration Facility: Workshop Proceedings

Description: This report summarizes the workshop entitled: Integrated Deployment and the Energy Systems Integration Facility. In anticipation of the opening of the ESIF, NREL held the workshop August 21-23, 2012 and invited participants from utilities, government, industry, and academia to discuss renewable integration challenges and discover new ways to meet them by taking advantage of the ESIF's capabilities.
Date: January 1, 2013
Creator: Kroposki, B.; Werner, M.; Spikes, A. & Komomua, C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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BAs-GaAs Semiconductor Alloys as a Photovoltaic Alternative to Nitride Alloys

Description: Nitrogen alloyed III-V semiconductor compounds have been intensely studied in recent years due to unusual effects caused by nitrogen alloying. These effects are exploited in band gap engineering for specific applications such as solar cells and blue lasers.
Date: January 1, 2000
Creator: Hart, G. L. W. & Zunger, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Small-Angle Neutron Scattering Studies of a-Si:H and a-Si:D

Description: The heterogeneity of hydrogen and deuterium on the nanometer scale has been probed by samll-angle neutron scattering (SANS) from a-Si:H and a-Si:D films. Films were depsoited by two techniques, plasma-enhanced chemical vapor deposition (PECVD) and hot-wire chemical vapor deposition (HWCVD) using conditions that yield high quality films and devices.
Date: January 1, 2000
Creator: Williamson, D. L.; Marr, D. W. M.; Nelson, B. P.; Iwaniczko, E.; Yang, J.; Yan, B. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Procedures at NREL for Evaluating Multijunction Concentrator Cells

Description: The procedures for evaluating the performance of multijunctiion-concentrator cells at the National Renewable Energy Laboratory are described. The accurate measurement of the performance of multijunction cells requires accurate relative-quantum-efficiency-measurements, "matched" reference cells, and a spectrally adjustable solar simulator.
Date: January 1, 2000
Creator: Moriarty, T. & Emery, K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Effects of Surface Composition on CdTe/CdS Device Performance

Description: The atomic composition of the back surface of the CdTe layer in a CdTe/CdS photovoltiac (PV) device has a significant influence on the quality of the electrical contact to this layer. This paper reports the results of a systematic study that correlates the composition of the back surface with pre-contact processing and device performance.
Date: January 1, 2000
Creator: Levi, D.; Albin, D. & King, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Photothermal Stability of Various Module Encapsulants and Effects of Superstrate and Substrate Materials Studied for PVMaT Sources

Description: This paper briefs the photothermal reliability studies we conducted on different encapsulation materials for some U.S. PV companies that are subcontractors of the Photovoltaic Manufacturing Technology (PVMaT) program.
Date: January 1, 2000
Creator: Pern, F. J. & Glick, S. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Comparison of Dye-Sensitized Rutile- and Anatase-Based TiO2 Solar Cells

Description: The objective of this work is to develop and optimize the new dye-sensitized solar cell technology. In view of the infancy of rutile material development for solar cells, the PV response of the dye-sensitized rutile-based solar cell is remarkably close to that of the anatase-based cell.
Date: January 1, 2000
Creator: Park, N. G.; van de Lagemaat, J. & Frank, A. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Non-linear Electron Transport Kinetics in Nanocrystalline TiO(2) Based Solar Cells

Description: An analytical model describing electron transport in dye-sensitized nanocrystalline TiO(2) solar cells is shown to account for the non-linear dependence of the electron transport rate on the electron concentration. Equations relating the influenece of an exponential distribtuion of surface states to electron transport are derived and verified by intensity-modulated photocurrent spectroscopy measurements. A slope of 69 meV is inferred for the surface-state distribution curve.
Date: January 1, 2000
Creator: van de Lagemaat, J. & Frank, A. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Preliminary Investigations of Outdoor Meteorological Broadband and Spectral Conditions for Evaluating Photovoltaic Modules and Systems

Description: Historically, flat-plate photovoltaic (PV) modules have been rated at "peak-output" for power generated under Standard; Reporting Conditions (SRC) of 1000 Watts per square meter W/m2 global irradiance at a standard temperature (25degC) and reference spectral distribution. We examine the direct-normal irradiance, spectral distribution, ambient temperature, and wind speed to be used for evaluating flatplate and concentrator module performance. Our study is based upon the 30-year U.S. National Sol… more
Date: January 1, 2000
Creator: Myers, D. R.; Kurtz, S. R.; Whitaker, C. & Townsend, T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Highly Efficient 32.3% Monolithic GaInP/GaAs/Ge Triple Junction Concentrator Solar Cells

Description: Based on recent cell improvements for space applications, multijunction cells apear to be ideal candidates for high efficiency, cost effective, PV concentrator systems.
Date: January 1, 2000
Creator: Cotal, H. L.; Lillington, D. R.; Ermer, J. H.; King, R. R.; Karam, N. H.; Kurtz, S. R. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Nitrogen-Induced Evolution of GaAs1-xNx Studied by Ballistic Electron Emission Spectroscopy

Description: Giant bandgap reduction of dilute GaAs1-xNx with nitrogen incorporation makes this material to be very attractive for conversion efficiency increase in multijunction, high efficiency solar cells.
Date: January 1, 2000
Creator: Narayanamurti, V.; Kozhevnikov, M.; Xin, H. P.; Tu, C. W.; Mascarenhas, A. & Zhang, Y.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Local Structure of CuIn3Se5

Description: The results of a detailed EXAFS study of the Cu-K, In-K, and Se-K edges CuIn3Se5 are reported. The Cu and In first nearest neighbor local structures were found to be almost identical to those in CuInSe2.
Date: January 1, 2000
Creator: Chang, C. H.; Wei, S. H.; Leyarovska, N.; Johnson, J. W.; Zhang, S. B.; Stanbery, B. J. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Copper in Contacts to CdTe

Description: Cu from the back contact of a polycrystalline CdS/CdTe solar cell does more than assist in forming a low-resistance contact.
Date: January 1, 2000
Creator: Gessert, T. A.; Asher, S.; Narayanswamy, C. & Rose, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Nondestructive Characterization of Atomic Profiles in Layer-Structured Photovoltaic Materials Using the Method of Angular Dependence of X-Ray Fluorescence (ADXRF)

Description: Angular dependence of x-ray fluorescence technique has been applied to the study of atomic density profile in composite systems. This method is shown to be useful for probing the microstructures and intermixing of constituent elements in layer-structured photovoltaic materials.
Date: January 1, 2000
Creator: Kim, S.; Soo, Y. L.; Kioseoglou, G.; Huang, S.; Kao, Y. H.; Ramanathan, K. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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SIMS Characterization of Amorphous Silicon Solar Cells Grown by Hot-Wire Chemical Vapor Deposition on Stainless Steel

Description: This paper is intended to be an overview of some of the challenges that must be overcome when characterizing amourphous-silicon solar cell devices by the secondary ion mass spectrometry (SIMS) technique.
Date: January 1, 2000
Creator: Reedy, R. C.; Wang, Q.; Moutinho, H.; Iwaniczko, E. & Mahan, A. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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