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  • richardmitnick 2:42 pm on September 2, 2015 Permalink | Reply
    Tags: , , , Clean Energy Project (CEP2),   

    From Clean Energy at WCG: “Summer is a great time to focus on solar energy” 

    World Community Grid

    Clean Energy

    Clean Energy Project

    2 Sep 2015

    By: The Clean Energy Project team
    Harvard University

    A busy summer has led to several advances in the Clean Energy Project: new team members, new database search functionality, new publications and (hopefully) new funding!

    Front: Wendy Woodin, Dr. Ed Pyzer-Knapp, Dipti Jasrasaria Back: Dr. Steven Lopez

    The Clean Energy Project (CEP) team has been working very hard this summer, and have had a number of successes to show for it.

    We are very happy to introduce the latest addition to our team – Dr. Steven Lopez has joined us from UCLA, where he worked for Ken Houk on computational organic chemistry. Steven’s knowledge of chemical reactivity, and reaction mechanisms will be invaluable to the team as we strive to deliver libraries of molecules which are synthetically accessible.

    We have been lucky enough to get funding for two undergraduates – Wendy and Dipti – to study with the team over the summer. Dipti has continued her work on machine learning on crystals, and Wendy has worked on hashing functions. These hashing functions will be deployed in our new database to enable users to perform searches for molecules similar to their search term; we believe this search option will further enhance the utility of the database for the discovery of new organic photovoltaic materials.

    We are also very happy to say that Ed and Kewei have had a manuscript accepted into the journal Advanced Functional Materials. Advanced Functional Materials is one of the most prestigious journals for this area of study so we are very excited to have been accepted! We will share the details of the manuscript once it gets published.

    Finally, we have just submitted a couple of grant proposals for continuing to fund the CEP in the years to come. Grant proposals are incredibly important for keeping our project running, and so we will keep our fingers crossed for a successful response!

    As ever, we are very appreciative for the computing time you donate since without it, we would be unable to perform the research which goes on in the CEP. So, thank you again…and keep crunching!

    See the full article here.

    Please help promote STEM in your local schools.

    STEM Icon

    Stem Education Coalition

    The Harvard Clean Energy Project Database contains data and analyses on 2.3 million candidate compounds for organic photovoltaics. It is an open resource designed to give researchers in the field of organic electronics access to promising leads for new material developments.

    Would you like to help find new compounds for organic solar cells? By participating in the Harvard Clean Energy Project you can donate idle computer time on your PC for the discovery and design of new materials. Visit WorldCommunityGrid to get the BOINC software on which the project runs.


    CEP runs on software from BOINC, Berkeley Open Infrastructure for Network computing.


  • richardmitnick 12:17 pm on January 6, 2012 Permalink | Reply
    Tags: , , , Clean Energy Project (CEP2), , , , ,   

    From SLAC Today: “Organic Semiconductor” 

    January 6, 2012
    Diane Rezendes Khirallah

    “Simply put, an organic semiconductor is an organic material whose conductivity can be switched on and off at will. This helpful property gives semiconductors a critical role in the on-off switches at the heart of digital devices.

    Many associate the word organic with pesticide-free farm products. But in chemistry, organic refers to compounds that contain the element carbon.

    Today’s most common semiconductor is silicon, which, being its own element, contains no carbon. By controlling conditions such as the percentage and type of impurities in the material and varying the amount of electrical current and the intensity of light – whether visible, infrared or X-ray – scientists can control how the semiconductor behaves.

    But while silicon crystals are durable and allow electrical current to flow rapidly, they are also rigid and expensive to produce, making large-scale implementation cost-prohibitive (for example, in a large-scale solar array).

    In contrast, organic semiconductors – typically plastics and polymers that can be produced in sheets as little as one molecule thick – offer an inexpensive, lightweight, more flexible option. But they don’t yet conduct electricity as efficiently as silicon or operate for as long, which has limited their commercial use.”

    The full article is here.

    Magnified view of organic semiconductor crystals recently grown by Stanford chemical engineers, who studied their structural properties at SLAC’s Stanford Synchrotron Radiation Lightsource.Image courtesy Gaurav Giri, Chemical Engineering, Stanford University

    Now, here is an example of how this research is being applied today-

    The Clean Energy Project (CEP2), at Harvard University is doing work in collaboration with research teams at SLAC.

    CEP2 is a project in Public Distributed Computing under the World Community Grid (WCG) arm of IBM’s Smarter Planet initiative. You can make a contribution to this project with the idle CPU cycles on your computer(s). WCG projects run on a small piece of software from UC Berkeley, called BOINC – the Berkeley Open Infrastructure for Network Computing. Just visit the WCG web site or the BOINC web site, download and install the BOINC software. Visit the WCG web site to attach to the project. While you are at WCG, take a look at the other very worthwhile projects and attach to as many as you wish.

    Also, at the BOINC web site, you will find a whole host of other projects in the Physical Sciences, Astronomy and Cosmology, Mathematics and other areas. Again, you can attach to as many projects as you like.

    SLAC is a multi-program laboratory exploring frontier questions in photon science, astrophysics, particle physics and accelerator research. Located in Menlo Park, California, SLAC is operated by Stanford University for the DOE’s Office of Science. i1

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