According to Timothy Peshek, formerly with NREL (now at CWRU) and lead author of the JVSTA paper, the researchers started out in 2009 trying to show that adding ZrO2 to the ITO film during doping would decrease its electrical resistance, enhance electron mobility and improve optical clarity. "We acquired a lot of data over the years and it wasn't easy to understand, so we decided to apply big data analytics to the whole pool and see if our hypothesis proved true," he says.
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The paper is titled: Zero added oxygen for high quality sputtered ITO: A data science investigation of reduced Sn-content and added Zr
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