Solar Technologies Available for Licensing

The National Renewable Energy Laboratory is the leader in developing solar technology that will ultimately expand solar applications in the areas of photovoltaics, concentrating solar power and solar hot water to help facilitate the growth of the market. A number of NREL's solar technologies have been patented and are available for licensing.

Intellectual Property Items

U.S. Patent 5,747,967 - Apparatus and Method for Maximizing Power Delivered by a Photovoltaic Array
U.S. Patent 6,275,060 - Apparatus and Method for Measuring Minority Carrier Lifetimes in Semiconductor Materials
U.S. Patent 5,396,332 - Apparatus and Method for Measuring the Thickness of a Semiconductor Wafer
U.S. Patent 5,929,652 - Apparatus for Measuring Minority Carrier Lifetimes in Semiconductor Materials
U.S. Patent 5,217,285 - Apparatus for Synthesis of a Solar Spectrum
U.S. Patent 5,639,520 - Application of Optical Processing for Growth of Silicon Dioxide
U.S. Patent 4,779,980 - Atmospheric Optical Calibration System (AOCS)
U.S. Patent 5,304,509 - Back-side Hydrogenation Technique for Defect Passivation in Silicon Solar Cells
U.S. Patent 5,948,176 - Cadmium-Free Junction Fabrication Process for CuInSe2 Thin Film Solar Cells
U.S. Patent 6,093,757 - Composition and Method for Encapsulating Photovoltaic Devices
U.S. Patent 5,223,453 - Controlled Metal-Semiconductor Sintering/Alloying by One-directional Reverse Illumination
U.S. Patent 5,314,571 - Crystallization from High-Temperature Solutions of Si in Copper
U.S. Patent 5,544,616 - Crystallization from High Temperture Solutions of Si in Cu/Al Solvent
U.S. Patent 4,667,059 - Current- and Lattice-Matched Tandem Solar Cell
U.S. Patent 5,223,043 - Current-Matched High-Efficiency, Multijunction Monolithic Solar Cells
U.S. Patent 5,406,367 - Defect Mapping System
U.S. Patent 5,397,737 - Deposition of Device Quality Low H Content, Amorphous Silicon Films
U.S. Patent 5,776,819 - Deposition of Device Quality, Low Hydrogen Content, Amorphous Silicon Films by Hot Filament Technique Using (SAFE) Silicon Source Gas
U.S. Patent 6,468,885 - Deposition of Device Quality, Low Hydrogen Content, Hydrogenated Amorphous Silicon at High Deposition Rates
U.S. Patent 6,124,186 - Deposition of Device Quality, Low Hydrogen Content, Hydrogenated Amorphous Silicon at High Deposition Rates with Increased Stability Using the Hot Wire Filament Technique
U.S. Patent 5,358,574 - Dry Texturing of Solar Cells
U.S. Patent 6,989,924 - Durable Corrosion and Ultraviolet-Resistant Silver Mirror
U.S. Patent 5,361,172 - Durable Metallized Polymer Mirror
U.S. Patent 6,239,354 - Electrical Isolation of Component Cells in Monolithically Interconnected Modules
U.S. Patent 6,859,297 - Electrochromic Counter Electrode
U.S. Patent 5,377,037 - Electrochromic-Photovoltaic Film for Light-Sensitive Control of Optical Transmittance
U.S. Patent 6,441,942 - Electrochromic Projection and Writing Device
U.S. Patent 6,332,967 - Electro-deposition of Superconductor Oxide Films
U.S. Patent 5,356,839 - Enhanced Quality Thin Film Cu(In,Ga)Se.sub.2 for Semiconductor Device Applications by Vapor-Phase Recrystallization
U.S. Patent 5,429,985 - Fabrication of Optically Reflecting Ohmic Contacts for Semiconductor Devices
U.S. Patent 5,342,453 - Heterojunction Solar Cell
U.S. Patent 5,316,593 - Heterojunction Solar Cell with Passivated Emitter Surface
U.S. Patent 6,908,782 - High Carrier Concentration P-Type Transparent Conducting Oxide Films
U.S. Patent 5,897,331 - High Efficiency Low Cost Thin Film Silicon Solar Cell Design and Method For Making
U.S. Patent 6,201,261 - High Efficiency, Low Cost, Thin Film Silicon Solar Cell Design and Method For Making
U.S. Patent 5,426,061 - Impurity Gettering in Semiconductors
U.S. Patent 5,897,715 - Interdigitalized Photovoltaic Power Conversion Device
U.S. Patent 6,281,035 - Ion-Beam Treatment to Prepare Surfaces of p-CdTe Films
U.S. Patent 6,815,736 - Isoelectronic Co-doping
U.S. Patent 6,300,557 - Low-Band Gap Double-Heterostructure InAsP/GaInAs Photovoltaic Converters
U.S. Patent 6,852,371 - Metal processing for impurity gettering in silicon
U.S. Patent 4,942,299 - Method and Apparatus for Differential Spectroscopic Atomic Imaging Using Scanning Tunneling Microscopy
U.S. Patent 7,122,736 - Method and Apparatus for Fabricating a Thin-Film Solar Cell Utilizing a Hot Wire Chemical Vapor Deposition Technique
U.S. Patent 7,300,890 - Method and apparatus for forming conformal SiN.sub.x films
U.S. Patent 5,304,534 - Method and Apparatus for Forming High-Critical-Temperatures Superconducting Layers on Flat and/or Elongated Substrates
U.S. Patent 6,441,896 - Method and Apparatus for Measuring Spatial Uniformity of Radiation
U.S. Patent 5,426,569 - Method and Apparatus for Simulating Atmospheric Absorption of Solar Energy Due to Water Vapor and CO.sub.2
U.S. Patent 6,713,400 - Method for Improving the Stability of Amorphous Silicon
U.S. Patent 5,047,112 - Method for Preparing Homogeneous Single Crystal Ternary III-V Alloys
U.S. Patent 5,627,081 - Method for Processing Silicon Solar Cells
U.S. Patent 5,441,897 - Method of Fabricating High-Efficiency Cu(In, Ga)Se.sub.2 Thin Films for Solar Cells
U.S. Patent 6,787,385 - Method of Preparing Nitrogen Containing Semiconductor Material
U.S. Patent 5,487,792 - Molecular Assemblies as Protective Barriers and Adhesion Promotion Interlayer
U.S. Patent 5,391,896 - Monolithic Multi-Color Light Emission/Detection Device
U.S. Patent 5,322,572 - Monolithic Tandem Solar Cell
U.S. Patent 5,019,177 - Monolithic Tandem Solar Cells
U.S. Patent 6,281,426 - Multi-Junction, Monolithic Solar Cell Using Low-Band-Gap Materials Lattice-Matched to GaAs or Ge
Trademark 7,309,832 - Multi-junction solar cell device
U.S. Patent 7,229,498 - Nanostructures Produced by Phase-Separation during Growth of (III-V).sub.1-x(IV.sub.2).sub.x Alloys
U.S. Patent 7,179,665 - Optical Method for Determining the Doping Depth Profile in Silicon
U.S. Patent 5,452,396 - Optical Processing Furnace with Quartz Muffle and Diffuser Plate
U.S. Patent 5,577,157 - Optical Processing Furnace with Quartz Muffle and Diffuser Plate
U.S. Patent 6,275,295 - Optical System for Determining Physical Characteristics of a Solar Cell
U.S. Patent 6,436,305 - Passivating Etchants for Metallic Particles
U.S. Patent 5,922,142 - Photovoltaic Devices Comprising Cadmium Stannate Transparent Conducting Films and Method for Making
U.S. Patent 6,169,246 - Photovoltaic Devices Comprising Zinc Stannate Buffer Layer and Method for Making
U.S. Patent 6,458,254 - Plasma and Reactive Ion Etchning to Prepare OHMIC Contacts
U.S. Patent 5,711,803 - Preparation of a Semiconductor Thin Film
U.S. Patent 5,976,614 - Preparation of CuInSe.sub.2 Precursors Films and Powders by Electroless Deposition
U.S. Patent 5,785,837 - Preparation of Transparent Conductors, Ferroelectric Memory Materials and Ferrites
U.S. Patent 6,137,048 - Process for Fabricating Polycrystalline Semiconductor Thin-Film Solar Cells, and Cells Produced Thereby
U.S. Patent 6,281,098 - Process for Polycrystalline Film Silicon Growth
U.S. Patent 5,541,118 - Process for Producing Cadmium Sulfide on a Cadmium Telluride Surface
U.S. Patent 6,518,086 - Processing Approach Towards The Formation Of Thin-Film CU(IN,GA)SE2
U.S. Patent 5,731,031 - Production of Films and Powders for Semiconductor Device Applications
U.S. Patent 6,369,603 - Radio Frequency Coupling Apparatus and Method for Measuring Minority Carrier Lifetimes in Semiconductor Materials
U.S. Patent 6,251,183 - Rapid Low-Temperature Epitaxial Growth Using a Hot-Element Assisted Chemical Vapor Deposition Process
U.S. Patent 7,329,554 - Reactive Codoping of GaAlInP Compound Semiconductors
U.S. Patent 5,436,204 - Recrystallization Method to Selenization of Thin-Film Cu(In,Ga)Se.sub.2 for Semiconductor Device Applications
U.S. Patent 6,984,263 - Shallow Melt Apparatus for Semicontinuous Czochralski Crystal Growth
U.S. Patent 5,376,185 - Single-Junction Solar Cells with the Optium Band Gap for Terrestrial Concentrator Applications
U.S. Patent 6,872,378 - Solar Thermal Aerosol Flow Reaction Process
U.S. Patent 7,033,570 - Solar-Thermal Fluid-Wall Reaction Processing
U.S. Patent 6,126,740 - Solution Synthesis of Mixed-Metal Chalcogenide Nanoparticles and Spray Deposition of Precursor Films
U.S. Patent 7,067,850 - Stacked Switchable Element and Diode Combination
U.S. Patent 5,384,653 - Stand-Alone Photovoltaic (PV) Powered Electrochromic Window
U.S. Patent 5,785,769 - Substrate for Thin Silicon Solar Cells
U.S. Patent 5,401,331 - Substrate for Thin Silicon Solar Cells
U.S. Patent 4,963,949 - Substrate Structures for InP-Based Devices
U.S. Patent 5,581,346 - System for Characterizing Semiconductor Materials and Photovoltaic Device
U.S. Patent 5,757,474 - System for Charactrizing Semiconductor Materials and Photovoltaic Devices Through Calibration
U.S. Patent 5,588,995 - System for Monitoring the Growth of Crystalline Films on Stationary Substrates
U.S. Patent 7,053,294 - Thin-Film Solar Cell Fabricated on a Flexible Metallic Substrate
U.S. Patent 6,221,495 - Thin Transparent Conducting Films of Cadmium Stannate
U.S. Patent 7,109,818 - Tunable Circuit for Tunable Capacitor Devices
U.S. Patent 5,166,761 - Tunnel-Junction Multiple Wavelength Light-Emitting Diodes
U.S. Patent 5,747,099 - Two Chamber Reaction Furnace
U.S. Patent 6,820,509 - Ultra-Accelerated Natural Sunlight Exposure Testing Facilities
U.S. Patent 5,909,632 - Use of Separate ZnTe Interface Layers to Form OHMIC Contacts to p-CdTe Films
U.S. Patent 5,712,187 - Variable Temperature Semiconductor Film Deposition
U.S. Patent 5,882,412 - Vertical Two Chamber Reaction Furnace
U.S. Patent 7,095,050 - Voltage-Matched, Monolithic, Multi-Band-Gap Devices
U.S. Patent 7,095,050 - Voltage-Matched, Monolithic, Multi-Band-Gap Devices
U.S. Patent 7,238,912 - Wafer Characteristics via Reflectometry and Wafer Processing Apparatus and Method
U.S. Patent 7,179,677 - ZnO/Cu(InGa)Se, Solar Cells Prepared by Vapor Phase Zn Doping

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