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    • 2009-01-21 11:00:00
    • Article ID: 548263

    Company Expects Sun to Shine on Chicago Invention

    • Credit: Photo by Lloyd DeGrane

      University of Chicago chemists Luping Yu (right) and Yongye Liang display a new material they synthesized called PTB1. The University of Chicago has licensed the material to Solarmer Energy Inc., which is developing plastic solar cells for portable electronic devices.

    Jan. 21, 2009

    Media Contact: Steve Koppes

    773-702-8366

    skoppes@uchicago.edu

    Solarmer Energy Inc. expects sun to shine on Chicago invention

    Solarmer Energy Inc. is developing plastic solar cells for portable electronic devices that will incorporate technology invented at the University of Chicago.

    The company is on track to complete a commercial-grade prototype later this year, said Dina Lozofsky, vice president of IP development and strategic alliances at Solarmer. The prototype, a cell measuring eight square inches (50 square centimeters), is expected to achieve 8 percent efficiency and to have a lifetime of at least three years.

    "New materials with higher efficiencies are really the key in our industry. Plastic solar cells are behind traditional solar-cell technology in terms of the efficiency that it can produce right now," Lozofsky said. "Everyone in the industry is in the 5 percent to 6 percent range."

    The invention, a new semiconducting material called PTB1, converts sunlight into electricity. Inventors Luping Yu, Professor in Chemistry, and Yongye Liang, a Ph.D. student, both at the University of Chicago, and five co-authors describe the technical details of the technology in an online article published Dec. 18, 2008, in the Journal of the American Chemical Society.

    "Yongye is very knowledgeable and skillful. Very creative," Yu said. "He is mainly responsible for the progress of this project."

    The active layer of PTB1 is a mere 100 nanometers thick, the width of approximately 1,000 atoms. Synthesizing even small amounts of the material is a time-consuming, multi-step process. "You need to make sure what you have is what you think you have," Yu said.

    The University licensed the patent rights to the technology to Solarmer last September. The license covers several polymers under development in Yu's laboratory, said Matthew Martin, a project manager at UChicagoTech, the University's Office of Technology and Intellectual Property. A patent is pending.

    An advantage of the Chicago technology is its simplicity. Several laboratories around the country have invented other polymers that have achieved efficiencies similar to those of Yu's polymers, but these require far more extensive engineering work to become a viable commercial product.

    "We think that our system has potential," Yu said. "The best system so far reported is 6.5 percent, but that's not a single device. That's two devices."

    By combining Solarmer's device engineering expertise with Yu and Liang's semiconducting material, they have been able to pushe the material's efficiency even higher. Based in El Monte, Calif., Solarmer was founded in 2006 to commercialize technology developed in Professor Yang Yang's laboratory at the University of California, Los Angeles. The company is developing flexible, translucent plastic solar cells that generate low-cost, clean energy from the sun.

    Yu began working with Solarmer at the suggestion of UCLA's Yang, a professor of materials science and engineering. Yu's research specialties include the development of new polymers, long chains of identical atoms that chemists hook together to form plastics and other materials.

    Yu's research program includes funding from the National Science Foundation and a Collaborative Research Seed Grant from the University of Chicago and Argonne National Laboratory. Solarmer has entered into a sponsored research agreement with the University to provide additional support for a postdoctoral researcher in Yu's lab. The company looks forward to the identification of new polymers as a result of this collaboration, Lozofsky said.

    Silicon-based solar cells dominate the market today. Industry observers see a promising future for low-cost, flexible solar cells, said UChicagoTech's Martin. "If people can make them sufficiently efficient, they may be useful for all sorts of applications beyond just the traditional solar panels on your house rooftop," he said.

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    In a first, researchers identify reddish coloring in an ancient fossil - a 3-million-year-old mouse

    In a first, researchers identify reddish coloring in an ancient fossil - a 3-million-year-old mouse

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    Brookhaven's Mircea Cotlet Named a Battelle "Inventor of the Year"

    Brookhaven's Mircea Cotlet Named a Battelle "Inventor of the Year"

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    Methane, a potent greenhouse gas that traps about 30 times more heat than carbon dioxide, is commonly released from rice fields, dairies, landfills, and oil and gas facilities - all of which are plentiful in California. Now Berkeley Lab has been awarded $6 million by the state to find "super emitters" of methane in an effort to quantify and potentially mitigate methane emissions.

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    New Argonne coating could have big implications for lithium batteries

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    In a new discovery, scientists at the U.S. Department of Energy's (DOE) Argonne National Laboratory have developed a new cathode coating by using an oxidative chemical vapor deposition technique. The new coating can keep the battery's cathode electrically and ionically conductive and ensures that the battery stays safe after many cycles.

    Argonne's Chain Reaction Innovations appoints first advisory council

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    ORNL, Lincoln Electric to Advance Large-Scale Metal Additive Manufacturing Technology

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    Students from Minnesota and Massachusetts Win DOE's 29th National Science Bowl(r)

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    Five new innovators join Chain Reaction Innovations in third cohort

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    Department of Energy Announces $20 Million for Artificial Intelligence Research

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    Tim Knewitz named Argonne National Laboratory's Chief Financial Officer

    Tim Knewitz named Argonne National Laboratory's Chief Financial Officer

    The U.S. Department of Energy's Argonne National Laboratory has named Tim Knewitz at its Chief Financial Officer.


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    Improving Isotope Supply for a Cancer-Fighting Drug

    Improving Isotope Supply for a Cancer-Fighting Drug

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    Slow Charge Generation Plays Big Role in Model Material for Solar Cells

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    Insight about energy flow in copper-based material could aid in creating efficient molecular electronics.

    Capturing Energy Flow in a Plasma by Measuring Scattered Light

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    Artificial Intelligence and Deep Learning Accelerate Efforts to Develop Clean, Virtually Limitless Fusion Energy

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    Spin Flipper Upends Protons

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    Splitting Water Fast! Catalyst Works Faster than Mother Nature

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    Design principles lead to a catalyst that splits water in a low pH environment, vital for generating solar fuels.

    Sea Quark Spin Surprise!

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    The Weak Side of the Proton

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    Fast-Moving Pairs May Solve 35-Year-Old Mystery

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    Physicists develop a universal mathematical description that suggests that proton-neutron pairs in a nucleus may explain why their associated quarks have lower average momenta than predicted.


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