SPECIAL NOTICE
A -- TECHNOLOGY/BUSINESS OPPORTUNITYOrganic Extraction Separation Technique for Purifying Cu Nanowires from Cu Nanoparticles - Figures 1, 2 & 3
- Notice Date
- 3/31/2017
- Notice Type
- Special Notice
- NAICS
- 238990
— All Other Specialty Trade Contractors
- Contracting Office
- Department of Energy, Lawrence Livermore National Laboratory (DOE Contractor), Industrial Partnerships & Commercialization, 7000 East Avenue, L-795, Livermore, California, 94550
- ZIP Code
- 94550
- Solicitation Number
- FBO338-17
- Archive Date
- 5/2/2017
- Point of Contact
- Connie L Pitcock, Phone: 925-422-1072
- E-Mail Address
-
pitcock1@llnl.gov
(pitcock1@llnl.gov)
- Small Business Set-Aside
- N/A
- Description
- Fig1. Representative SEM image of nanowires deposited on a silicon substrate (left); and optical image of purified copper nanowires suspended in solution (right). Typical length of nanowires are 50-100 um, and their diameters in the range of 25-50 nm. Nanowires are very uniform in diameter. Fig. 2. High resolution SEM image of copper nanowires self-assembled anisotropically. Fig. 3. Nanowire solution prepared at liter scales, and can be further scaled to several tens liters. TECHNOLOGY/BUSINESS OPPORTUNITY Organic Extraction Separation Technique for Purifying Cu Nanowires from Cu Nanoparticles Opportunity : Lawrence Livermore National Laboratory (LLNL), operated by the Lawrence Livermore National Security (LLNS), LLC under contract no. DE-AC52-07NA27344 (Contract 44) with the U.S. Department of Energy (DOE), is offering the opportunity to further develop and commercialize its cross-phase separation of copper nanowires technology. Background : One-dimensional copper (Cu) nanowires have been used widely for transparent electrode, high-efficiency catalysts and for heat dissipation. Solution-based hydrothermal syntheses are the most common methods to make Cu nanowires. As-prepared nanowires are almost inevitably accompanied by a large quantity of nanoparticles. Nanowires and nanoparticles are generated together and have similar physical and chemical properties, and thus are very difficult to separate. Current nanowire and nanoparticle separation methods are based on their morphology and density. Such methods include using hollow-fiber membrane, multiple filtration, and rate-zone centrifuge. These procedures are laborious, use complicated solutions, bulky instruments, resulting in poor separations and/or limitations in up-scaling. Description : LLNL researchers have developed a new method of separating copper nanowires from copper nanoparticles in a two-phase liquid system, within one step, within a few minutes and with excellent separation results. LLNL's new method of separation is based on the unique observation that copper nanowires can cross the interface between water and a wide range of hydrophobic organic solvent (e.g. chloroform, hexane, toluene), while copper nanoparticles cannot. Advantages : Using Livermore's approach, copper nanowires and nanoparticles can be separated with nearly 100% purity quickly and economically by simply adding organic solvent. Potential Applications : Copper nanowires show promise for replacing ITO in optoelectronics applications such as consumer electronics touchscreens, solar cells and OLEDs. Besides their conductivity, they are relatively easy to synthesize. Livermore's cross-phase separation method for copper nanowires was originally developed for LLNL's NIF laser targets. Other potential applications envisioned are transparent electrodes, ultralight copper aerogels, heat dissipators, liquid fuel generation, sensors, solar cells, data storage. Development Status: LLNL has filed a patent application for this invention. LLNL is seeking industry partners with a demonstrated ability to bring such inventions to the market. Moving critical technology beyond the Laboratory to the commercial world helps our licensees gain a competitive edge in the marketplace. All licensing activities are conducted under policies relating to the strict nondisclosure of company proprietary information. Please visit the IPO website at https://ipo.llnl.gov/resources/industry/working-with-us for more information on working with LLNL and the industrial partnering and technology transfer process. Note: THIS IS NOT A PROCUREMENT. Companies interested in commercializing LLNL's cross-phase separation of copper nanowires technology should provide a written statement of interest, which includes the following: 1. Company Name and address. 2. The name, address, and telephone number of a point of contact. 3. A description of corporate expertise and facilities relevant to commercializing this technology. Written responses should be directed to: Lawrence Livermore National Laboratory Industrial Partnerships Office P.O. Box 808, L-795 Livermore, CA 94551-0808 Attention: FBO 338-17 Please provide your written statement within thirty (30) days from the date this announcement is published to ensure consideration of your interest in LLNL's cross-phase separation of copper nanowires technology.
- Web Link
-
FBO.gov Permalink
(https://www.fbo.gov/spg/DOE/LLNL/LL/FBO338-17/listing.html)
- Record
- SN04455879-W 20170402/170331234901-80add3d8b25332ac4a8fe9fa4f02fc07 (fbodaily.com)
- Source
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