Search Results - energy and fuels

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New Nano-Composite Materials for Highly Efficient Organic Solar Cells

Reference Number: U-4646 Invention Description: Recently, organic solar cells are viewed as important alternative in the search for cost effective alternative energy sources. Current inorganic solar cells are efficient, but are very expensive to manufacture. On the other hand organic based solar cells are significantly cheaper and easier t...

Published: August 12, 2010 | Inventor(s): Ling Zang

Keywords(s): Chemicals, Energy and Fuels, Environmental, Materials and Mining

Category(s): Energy and Fuels

A New Architecture of Materials for Highly Efficient Organic Solar Cells

Reference Number: U-4647 Invention Description: In the past several years, organic based solar cells have attracted a lot of attention and are expected to become a promising source for clean and renewable energy production. Organic based solar cells have high potential to become competitive against inorganic solar cells by reducing the cos...

Published: August 12, 2010 | Inventor(s): Ling Zang

Keywords(s): Chemicals, Energy and Fuels, Environmental, Materials and Mining

Category(s): Energy and Fuels

Ultra Small Synthetic Ferrihydrite Based Catalysts with Promoter Metals for Fisher Tropsch Synthesis of Alternative Fuels

Reference Number: U-4719 Invention Description: This technology describes the synthesis of ferrihydrite, iron based catalyst, for the Fischer-Tropsch (F-T) synthesis. Ferrihydrites are found in nature and are well known precursors to various iron oxides. In this technology, 2-line ferrihydrite catalysts have been synthesized and characteriz...

Published: September 25, 2009 | Inventor(s): Edward Eyring, Richard Ernst

Keywords(s): Chemicals, Nanotechnology, Energy and Fuels

Category(s): Energy and Fuels

Chemical Additives for the Suppression of Catalyst Degradation in Proton Exchange Membrane Fuel Cells (PEMFC)

Invention Summary This invention defines several water-soluble additives to a proton exchange membrane fuel cells (PEMFC) electrode that contains precious metals. These additives lower the concentration of precious-metal ions in a solution and thereby suppress growth kinetics of the catalyst's particles. Under this invention, the additives includ...

Published: February 24, 2009 | Inventor(s):

Keywords(s): Chemicals, Energy and Fuels, Electrical Engineering, Environmental

Category(s): Energy and Feuls

A High Activity, Low-Cost Catalyst Comprising an Inexpensive Core and a Thin Precious Metal Shell for Fuel Cells, and a Method for Making the Same

Invention SummaryThis invention describes a catalyst with a (1 nm) shell of a precious metal (e.g., platinum) on a nanoparticle core of inert material. The shell is sufficiently thin to achieve a large surface area per unit mass of the metal, yet sufficiently thick so that the material behaves like bulk material. The invention also teaches a me...

Published: February 24, 2009 | Inventor(s):

Keywords(s): Chemicals, Nanotechnology, Electrical Engineering, Energy and Fuels

Category(s): Energy and Feuls

Significantly Increasing Efficiency of Dye-Sensitized Solar Cells Using Nanostructured ZnO Electrodes

Invention SummaryDye-sensitized solar cells (DSSCs) have received considerable attention as a cost-effective alternative to conventional solar cells. However, a major efficiency limiting factor in current nanoparticle-based DSSCs is the trap-limited diffusion transport mechanism of electrons, a slow mechanism that limits the device efficiency, ...

Published: February 18, 2009 | Inventor(s):

Keywords(s): Energy and Fuels, Environmental, Nanotechnology

Category(s): Nanotechnology

Transistors for Replacing Metal-Oxide-Semiconductor Field-Effect Transistors in Nanoelectronics

Invention SummaryThis invention is to replace metal-oxide-semiconductor field effect transistors (MOSFETs) in mainstream silicon based microelectronics with junction field 0effect transistors (JFETs) because of their lower leakage and better scaling to nanoscale dimensions. The electrical properties, materials, and fabrication processes of the...

Published: February 18, 2009 | Inventor(s):

Keywords(s): Electrical Engineering, Materials and Mining, Energy and Fuels, Nanotechnology

Category(s): Electrical Engineering, Electrical Engineering, Nanotechnology

High Precision, High Speed Solar Cell Arrangement to a Concentrator Lens Array

Invention Summary Lenses allow solar cells to achieve unique non-linear behavior with regards to electricity generation, if the solar power concentrated onto them is high enough. Also, they work best with vertically incident light provided by a lens. However current methods for solar cell fabrication cannot benefit from a lens, because the required...

Published: February 13, 2009 | Inventor(s):

Keywords(s): Energy and Fuels, Environmental, Electrical Engineering

Category(s): Electrical Engineering