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231 Matching Results
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Cost-Effective Surface Modification for Metallic Bipolar Plates
Presented at the 2006 DOE Hydrogen, Fuel Cells & Infrastructure Technologies Program Annual Merit Review in Washington, D.C., May 16-19, 2006.
Date:
May 1, 2006
Creator:
Brady, M. P.; Yang, B.; Tortorelli, P. F.; More, K. L.; Wang, H. & Turner, J. A.
System:
The UNT Digital Library
Distributed Bio-Oil Reforming
None
Date:
May 1, 2006
Creator:
Evans, R. J.; Czernik, S.; French, R. & Marda, J.
System:
The UNT Digital Library
DOE Carbon-based Hydrogen Storage Center of Excellence: Center Highlights and NREL Activities
Presented at the 2006 DOE Hydrogen, Fuel Cells & Infrastructure Technologies Program Annual Merit Review in Washington, D.C., May 16-19, 2006.
Date:
May 1, 2006
Creator:
Blackburn, J. L.; Curtis, C.; Davis, M.; Dillon, A. C.; Engtrakul, C.; Gennett, T. et al.
System:
The UNT Digital Library
Effect of Sb on the Properties of GaInP Top Cells
The summary of this report is that: (1) Sb can be used to increase V{sub oc} of a GaInP top cell; (2) the photovoltaic quality of GaInP is relatively unaffected by the presence of Sb; and (3) Sb-doped GaInP/GaAs tandem cells show promise for achieving efficiencies over 32%.
Date:
May 1, 2006
Creator:
Olson, J. M.; McMahon, W. E. & Kurtz, S.
System:
The UNT Digital Library
Efficient Organic Excitonic Solar Cells with Carbon Nanotubes Replacing In2O3:Sn as the Transparent Electrode
The conclusions of this report are that: (1) organic solar cells with efficiencies of up to 1.43% conversion efficiency that use no ITO and no PEDOT:PSS, are demonstrated; (2) a cell without ITO, but with PEDOT:PSS gave 2.6% conversion efficiency; (3) due to porous nature of SWCNT substrates, optimization of the active layer is essential; and (4) SWCNT electrodes bring one step closer the goal of a fully printable, organic solar cell.
Date:
May 1, 2006
Creator:
van de Lagemaat, J.; Barnes, T.; Rumbles, G.; Shaheen, S.; Coutts, T. J.; Weeks, C. et al.
System:
The UNT Digital Library
Formation of ZnTe:Cu/Ti Contacts at High Temperature for CdS/CdTe Devices
The conclusions of this report are that Cu diffusion from a ZnTe:Cu contact causes good and bad things. The good (Cu in CdS < low 10{sup 18} cm{sup -3})--increase in CdTe N{sub A}-N{sub D} that leads to V{sub oc} and FF improvement. The bad (Cu in CdS > low 10{sup 18} cm{sup -3})--(1) possibly decreased of shunt resistance (?); (2) depletion width in CdTe can become too narrow for optimum current collection at J{sub MPP}; (3) donor reduction in CdS (significant FF loss in LIV); and (4) excessive Cu diffusion into CdS readily observed by red-light bias QE.
Date:
May 1, 2006
Creator:
Gessert, T. A.; Asher, S.; Johnston, S.; Duda, A.; Young, M. R. & Moriarty, T.
System:
The UNT Digital Library
Future Generation Technology Status Within the High-Performance PV Project
None
Date:
May 1, 2006
Creator:
Symko-Davies, M.; McConnell, R. & Posey-Eddy, F.
System:
The UNT Digital Library
GaInAs 4th Junction for Next-Generation Lattice-Mismatched Multijunction Solar Cells
None
Date:
May 1, 2006
Creator:
Friedman, D. J.; Geisz, J. F.; Norman, A. G.; Wanlass, M. & Kurtz, S. R.
System:
The UNT Digital Library
High Efficiency CdTe and CIGS Thin Film Solar Cells: Highlights of the Technologies Challenges
None
Date:
May 1, 2006
Creator:
Noufi, R.
System:
The UNT Digital Library
Hydrogen Codes and Standards
Presented at the 2006 DOE Hydrogen, Fuel Cells & Infrastructure Technologies Program Annual Merit Review in Washington, D.C., May 16-19, 2006.
Date:
May 1, 2006
Creator:
Ohi, J.
System:
The UNT Digital Library
HyDS Modeling Environment
Presented at the 2006 DOE Hydrogen, Fuel Cells & Infrastructure Technologies Program Annual Merit Review in Washington, D.C., May 16-19, 2006.
Date:
May 1, 2006
Creator:
Parks, K.
System:
The UNT Digital Library
Lattice-Mismatched GaAsP Solar Cells Grown on Silicon by OMVPE
None
Date:
May 1, 2006
Creator:
Geisz, J. F.; Olson, J. M.; Romero, M. J.; Jiang, C S. & Norman, A G.
System:
The UNT Digital Library
Macro-System Model
Presented at the 2006 DOE Hydrogen, Fuel Cells & Infrastructure Technologies Program Annual Merit Review in Washington, D.C., May 16-19, 2006.
Date:
May 1, 2006
Creator:
Ruth, M. & Vanderveen, K.
System:
The UNT Digital Library
Multijunction Photovoltaic Technologies for High Performance Concentrators
None
Date:
May 1, 2006
Creator:
McConnell, R. D. & Symko-Davies, M
System:
The UNT Digital Library
Novel Tertiary Amine Solid Adsorbents Used for the Capture of Carbon Dioxide
None
Date:
May 1, 2006
Creator:
Gray, M. L.; Fauth, D. J.; Champagne, Kenneth; Beckman, Eric & Tarka, Thomas
System:
The UNT Digital Library
Performance Boundaries in Nb3Sn Superconductors
None
Date:
May 1, 2006
Creator:
Godeke, Arno
System:
The UNT Digital Library
Photoelectrochemical Water Systems for H2 Production
None
Date:
May 1, 2006
Creator:
Turner, J. A.; Deutsch, T.; Head, J. & Leisch, J.
System:
The UNT Digital Library
Polycrystalline Thin Film Photovoltaics: From the Laboratory to Solar Fields
The conclusions of this report are that: (1) many issues how thin-film solar cells work remain unresolved, requiring further fundamental R and D effort; (2) commercial thin-film PV module production reached 29% in 2005 in the US, indicating much more rapid growth than crystalline Si PV; (3) commercial module performance is increasing based on current knowledge, more R and D will lead to further improvement; and (4) stability of thin-film modules is acceptable ({le} 1% per year power loss) if the right manufacturing processes are used for manufacturing.
Date:
May 1, 2006
Creator:
von Roedern, Bolko; Ullal, Harin & Zweibel, Ken
System:
The UNT Digital Library
Pore Connectivity, Episodic Flow, and Unsaturated Diffusion in Fractured Tuff
None
Date:
May 1, 2006
Creator:
Hu, Q.
System:
The UNT Digital Library
Processing and Properties of Very Thin CuInGaSe2 (CIGS) Solar Cells
None
Date:
May 1, 2006
Creator:
Ramanathan, K.; Noufi, R.; Young, D.; To, B.; Bhattacharya, R.; Contreras, M. et al.
System:
The UNT Digital Library
Purdue Hydrogen Technology Program
Presented at the 2006 DOE Hydrogen, Fuel Cells & Infrastructure Technologies Program Annual Merit Review in Washington, D.C., May 16-19, 2006.
Date:
May 1, 2006
Creator:
Gore, J.; Ramachandran, P. V.; Zheng, Y.; Kramer, R.; Varma, A.; Fisher, T. et al.
System:
The UNT Digital Library
Recent Analysis of UCAPs in Mild Hybrids
This report presents the analysis of ultracapacitors for mild/moderate hybrid electric vehicle (HEV) performance. The objectives of this report are to: (1) review the fuel economy improvement trends of today's HEVs with respect to degree of hybridization; (2) perform analysis to see the extent of fuel economy improvement possible with various strategies in mild/moderate HEVs, with no engine downsizing, using either batteries or ultracapacitors; (3) identify energy requirements of various driving events/functions--what matches a limited ucap's energy; and (4) discuss potential roles for high-voltage ultracapacitors in HEVs, if any.
Date:
May 1, 2006
Creator:
Pesaran, A. & Gonder, J.
System:
The UNT Digital Library
Results from the Second International Module Inter-comparison
None
Date:
May 1, 2006
Creator:
Rummel, S.; Anderberg, A.; Emery, K.; King, D.; TamizhMani, G.; Arends, T. et al.
System:
The UNT Digital Library
Silicon Heterojunction Solar Cell Characterization and Optimization Using In Situ and Ex Situ Spectroscopic Ellipsometry
The summary of this report is that: in situ SE gives insight into growth mechanisms and accurate layer thickness; (2) ex situ SE measures completed device structures to determine integrated optical properties; and (3) the combination of in situ and ex situ SE provides a powerful method for pinpointing the effects of processing changes in actual SHJ devices and guiding optimization.
Date:
May 1, 2006
Creator:
Levi, D.; Iwaniczko, E.; Page, M.; Branz, H. & Wang, T.
System:
The UNT Digital Library