|Organization||Micross Advanced Interconnect Technologies|
|Location||136 Monteith Research Center (MRC)|
|Start Date||February 17, 2017 10:15 AM|
|End Date||February 17, 2017 11:30 AM|
Faculty candidate seminar
In present-day high-performance electronic components, the generated heat loads result in unacceptably high junction temperatures and reduced component lifetimes. Thermoelectric (TE) devices have been shown to be a promising technology for addressing this issue. Dr. Barletta’s group at Micross AIT (formerly the Engineering and Applied Physics Division at RTI International) has developed a novel TE device technology based on Bi2Te3, Sb2Te3, and Bi2Te3-xSex thin films grown by metalorganic chemical vapor deposition. The major advantage of thin-film TE, as compared to standard bulk TE technology, is improved heat pumping. The heat pumping characteristics of a series of RTI’s thin-film TECs were measured, and a maximum heat pumped per unit area (Qmax/A) > 250 W/cm at ΔT=0 was demonstrated. This value is 25 times higher than that typically seen in commercially available bulk TECs. These high-cooling-ﬂux modules are anticipated to have far-reaching impacts in a number of diverse applications such as advanced computer processors, radio-frequency power devices, quantum cascade lasers, and servers in data centers.
Dr. Philip Barletta is currently a Program Manager at Micross AIT (formerly the Engineering and Applied Physics Division of RTI International) in Research Triangle Park, NC.
Dr. Philip Barletta is actively involved in the field of thermal management of electronic devices using thermoelectric (TE) materials and devices. His primary interest is the growth of bismuth-telluride-based thin-film materials for TE applications; as well as the processing, packaging, and testing of thin-film TE devices. His contributions to this field have led to several scientific advancements in the state-of-the-art of thin-film TE, including the development of unique telluride material structures and significant improvements in metal–bismuth-telluride interface resistance. His expertise in the growth and processing of bismuth-telluride-based thin-films has also led to many impressive TE device results, such as a TE module able to actively pump 25X more heat per unit area than that typically seen in commercially available devices.
During his career, Dr. Barletta has also studied bulk thermoelectrics, photovoltaics, long-wavelength IR detection, III-nitride growth/processing, and solid-state lighting. His diverse research background includes publications regarding thermoelectrics, III-V material growth, and diamond-like carbon.