55 Matching Results

Search Results

Advanced search parameters have been applied.
in subjects: "Thin Films Pv"  
Results: 1 - 24 next
open access

Effects of Cu Diffusion from ZnTe:Cu/Ti Contacts on Carrier Lifetime of CdS/CdTe Thin Film Solar Cells: Preprint

Description: We study the performance of CdS/CdTe thin film PV devices processed with a ZnTe:Cu/Ti contact to investigate how carrier lifetime in the CdTe layer is affected by Cu diffusion from the contact.
Date: May 1, 2008
Creator: Gessert, T. A.; Metzger, W. K.; Asher, S. E.; Young, M. R.; Johnston, S.; Dhere, R. G. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Characterization of 19.9% Efficient CIGS Absorbers: Preprint

Description: This paper documents the properties of the world-record-efficiency CIGS solar cell by a variety of characterization techniques, with an emphasis on identifying near-surface properties associated with the modified processing.
Date: May 1, 2008
Creator: Repins, I.; Contreras, M.; Romero, M.; Yan, Y.; Metzger, W.; Li, J. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Si Passivation and Chemical Vapor Deposition of Silicon Nitride: Final Technical Report, March 18, 2007

Description: This report investigated chemical and physical methods for Si surface passivation for application in crystalline Si and thin Si film photovoltaic devices. Overall, our efforts during the project were focused in three areas: i) synthesis of silicon nitride thin films with high hydrogen content by hot-wire chemical vapor deposition; ii) investigation of the role of hydrogen passivation of defects in crystalline Si and Si solar cells by out diffusion from hydrogenated silicon nitride films; iii) i… more
Date: November 1, 2007
Creator: Atwater, H. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of New Low-Cost, High-Performance, PV Module Encapsulant/Packaging Materials: Final Technical Progress Report, 22 October 2002 - 15 November 2007

Description: Report on objectives to work with U.S.-based PV module manufacturers (c-Si, a-Si, CIS, other thin films) to develop/qualify new low-cost, high-performance PV module encapsulant/packaging materials, and processes using the packaging materials.
Date: April 1, 2008
Creator: Tucker, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of a Wide Bandgap Cell for Thin Film Tandem Solar Cells: Final Technical Report, 6 November 2003 - 5 January 2007

Description: The objective of this research program was to develop approaches for a transparent wide-bandgap cell to be used in a thin-film tandem polycrystalline solar cell that can ultimately attain 25% efficiency. Specific goals included the research and development of Cu(InGa)(SeS)2 and Cd1-xZnxTe alloys with a bandgap from 1.5 to 1.8 eV, demonstrating the potential of a 15% cell efficiency with a transparent contact, and supporting the High Performance PV Program. This Final Report presents results tha… more
Date: August 1, 2008
Creator: Shafarman, W. & McCandless, B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Sputtered II-VI Alloys and Structures forTandem PV: Final Subcontract Report, 9 December 2003 - 30 July 2007

Description: This report elaborates on Phase 3 and provides summaries of the first two Phases. Phase 3 research work was divided into five task areas covering different aspects of the II-VI tandem cell.
Date: September 1, 2008
Creator: Compaan, A. D.; Collins, R.; Karpov, V. G. & Giolando, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Overview and Challenges of Thin Film Solar Electric Technologies

Description: In this paper, we report on the significant progress made worldwide by thin-film solar cells, namely, amorphous silicon (a-Si), cadmium telluride (CdTe), and copper indium gallium diselenide (CIGS). Thin-film photovoltaic (PV) technology status is also discussed in detail. In addition, R&D and technology challenges in all three areas are elucidated. The worldwide estimated projection for thin-film PV technology production capacity announcements are estimated at more than 5000 MW by 2010.
Date: December 1, 2008
Creator: Ullal, H. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Development of Advanced Deposition Technology for Microcrystalline Si Based Solar Cells and Modules: Final Technical Report, 1 May 2002-31 July 2004

Description: The key objective of this subcontract was to take the first steps to extend the radio-frequency plasma-enhanced chemical vapor deposition (RF-PECVD) manufacturing technology of Energy Photovoltaics, Inc. (EPV), to the promising field of a-Si/nc-Si solar cell fabrication by demonstrating ''proof-of-concept'' devices of good efficiencies that previously were believed to be unobtainable in single-chamber reactors owing to contamination problems. A complementary goal was to find a new high-rate dep… more
Date: December 1, 2004
Creator: Li, Y. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Implementation of a Comprehensive On-Line Closed-Loop Diagnostic System for Roll-to-Roll Amorphous Silicon Solar Cell Production: Phase I Annual Report, 23 April 2003--31 August 2003

Description: This subcontract report describes how Energy Conversion Devices, Inc., has developed and built 7 generations of roll-to-roll amorphous silicon PV production equipment. In the ECD/United Solar production process, we deposit about a 1-mm-thick, 12-layer coating consisting of a metal/oxide backreflector, a 9-layer a-Si/a-SiGe alloy triple-junction solar cell, and top transparent conductive oxide coating onto 125-mm-thick, 35.5-cm-wide stainless-steel webs in a series of three roll-to-roll depositi… more
Date: August 1, 2004
Creator: Ellison, T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Polycrystalline Thin Film Photovoltaics: Research, Development, and Technologies: Preprint

Description: II-VI binary thin-film solar cells based on cadmium telluride (CdTe) and I-III-VI ternary thin-film solar cells based on copper indium diselenide (CIS) and related materials have been the subject of intense research and development in the past few years. Substantial progress has been made thus far in the area of materials research, device fabrication, and technology development, and numerous applications based on CdTe and CIS have been deployed worldwide. World record efficiency of 16.5% has be… more
Date: May 1, 2002
Creator: Ullal, H. S.; Zweibel, K. & von Roedern, B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Processing Materials Devices and Diagnostics for Thin Film Photovoltaics: Fundamental and Manufacturability Issues; Final Report, 5 September 2001 - 31 May 2008

Description: The critical issues addressed in this study on CIGS, CdTe, and a-Si modules will provide the science and engineering basis for developing viable commercial processes and improved module performance.
Date: April 1, 2009
Creator: Birkmire, R. W.; Shafarman, W. N.; Eser, E.; Hegedus, S. S.; McCandless, B. E.; Dobson, K. D. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Epitaxial Thin Film Silicon Solar Cells Fabricated by Hot Wire Chemical Vapor Deposition Below 750 ..deg..C: Preprint

Description: We report on fabricating film c-Si solar cells on Si wafer templates by hot-wire chemical vapor deposition. These devices, grown at glass-compatible temperatures < 750..deg..C, demonstrate open-circuit voltages > 500 mV and efficiencies > 5%.
Date: June 1, 2009
Creator: Alberi, K.; Martin, I. T.; Shub, M.; Teplin, C. W.; Iwaniczko, E.; Xu, Y. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Economic On-Grid Solar Energy via Organic Thin Film Technology: 28 September 2007 - 27 October 2008

Description: Plextronics' PV Incubator goal was to take its organic photovoltaic technology from lab-scale and demonstrate a pathway to 3-W manufacturing capacity (~2010) and 7 cents/kWh LCOE by 2015.
Date: December 1, 2009
Creator: Laird, D.; Bernkopf, J.; Jian, S.; Krieg, J.; Li, S.; McGuiness, C. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Striving for a Standard Protocol for Preconditioning or Stabilization of Polycrystalline Thin Film Photovoltaic Modules

Description: Stabilization/preconditioning promise stable performance. CV-derived depletion width changes & hysteresis appear linked to stability; dark exposure in forward bias emulates light exposure at 1-sun.
Date: August 5, 2009
Creator: del Cueto, J. A.; Deline, C. A.; Albin, D. S.; Rummel, S. R. & Anderberg, A.
Item Type: Refine your search to only Presentation
Partner: UNT Libraries Government Documents Department
open access

Proceedings of the Workshop on Crystalline Silicon Solar Cells and Modules, Materials and Processes: 2007

Description: The National Center for Photovoltaics sponsored the 17th Workshop on Crystalline Silicon Solar Cells & Modules: Materials and Processes, held in Vail, CO, August 5-8, 2007. This meeting provided a forum for an informal exchange of technical and scientific information between international researchers in the photovoltaic and relevant non-photovoltaic fields. The theme of this year's meeting was 'Expanding Technology for a Future Powered by Si Photovoltaics.'
Date: August 2007
Creator: Sopori, B. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Silicon Heterojunction Solar Cell Characterization and Optimization Using In Situ and Ex Situ Spectroscopic Ellipsometry: Preprint

Description: We use in-situ and ex-situ spectroscopic ellipsometry to characterize the optical, electronic, and structural properties of individual layers and completed silicon heterojunction devices. The combination of in-situ measurements during thin film deposition with ex-situ measurements of completed devices allows us to understand both the growth dynamics of the materials and the effects of each processing step on material properties. In-situ ellipsometry measurements enable us to map out how the opt… more
Date: May 1, 2006
Creator: Levi, D.; Iwaniczko, E.; Page, M.; Branz, H. & Wang, T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Striving for a Standard Protocol for Preconditioning or Stabilization of Polycrystalline Thin Film Photovoltaic Modules: Preprint

Description: A protocol was devised for preconditioning polycrystalline CdTe and CIGS cell technologies under bias with light exposure or forward-bias currents at elevated temperatures and the results reported.
Date: July 1, 2009
Creator: del Cueto, J. A.; Deline, C. A.; Albin, D. S.; Rummel, S. R. & Anderberg, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

CIGS Thin-Film Solar Cell Research at NREL: FY04 Results and Accomplishments

Description: This short paper is a summary of our investigations in three major areas: high-efficiency CuInGaSe2 (CIGS) solar cells, junctions made using chemical bath deposited ZnS(O,OH) buffer layers, and solar cells fabricated from thinner absorbers. Significant progress was made in all areas. We describe how our research has contributed to the fundamental understanding and the practical application of CIGS materials to high performance solar cells.
Date: January 1, 2005
Creator: Ramanathan, K.; Bhattacharya, R. N.; Contreras, M. A.; Hasoon, F. S.; Abushama, J. & Noufi, R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
Back to Top of Screen