@article{1dac9a117e464e639a5eb93b42ad9de1,
title = "In-situ resonant band engineering of solution-processed semiconductors generates high performance n-type thermoelectric nano-inks",
abstract = "Thermoelectric devices possess enormous potential to reshape the global energy landscape by converting waste heat into electricity, yet their commercial implementation has been limited by their high cost to output power ratio. No single “champion” thermoelectric material exists due to a broad range of material-dependent thermal and electrical property optimization challenges. While the advent of nanostructuring provided a general design paradigm for reducing material thermal conductivities, there exists no analogous strategy for homogeneous, precise doping of materials. Here, we demonstrate a nanoscale interface-engineering approach that harnesses the large chemically accessible surface areas of nanomaterials to yield massive, finely-controlled, and stable changes in the Seebeck coefficient, switching a poor nonconventional p-type thermoelectric material, tellurium, into a robust n-type material exhibiting stable properties over months of testing. These remodeled, n-type nanowires display extremely high power factors (~500 µW m−1K−2) that are orders of magnitude higher than their bulk p-type counterparts.",
author = "Ayaskanta Sahu and Boris Russ and Miao Liu and Fan Yang and Zaia, {Edmond W.} and Gordon, {Madeleine P.} and Forster, {Jason D.} and Zhang, {Ya Qian} and Scott, {Mary C.} and Persson, {Kristin A.} and Coates, {Nelson E.} and Segalman, {Rachel A.} and Urban, {Jeffrey J.}",
note = "Funding Information: This work was partially performed at the Molecular Foundry, Lawrence Berkeley National Laboratory, and was supported by the Office of Science, Office of Basic Energy Sciences, Scientific User Facilities Division, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. The computational work was performed under the infrastructure of the Materials Project which is supported by Department of Energy{\textquoteright}s Basic Energy Sciences program under Grant No. EDCBEE. The TEM characterizations were performed at the Molecular Foundry at LBNL, supported by the Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under contract No. DE-AC02-05CH11231. B. R. gratefully acknowledges the Department of Defense, AFOSR, for fellowship support under the National Defense Science and Engineering Graduate Fellowship (DOD-NDSEG), 32 CFR 168a under contract FA9550-11-C-0028. E.W.Z. and M.P.G. gratefully acknowledge the National Science Foundation for fellowship support under the National Science Foundation Graduate Research Fellowship Program. The authors would like to thank Raffaella Buonsanti and Chris Dames for insightful discussions and thoughtful feedback, as well as Hilda Buss for synthesis of the block copolymer and Qintian Zhou and the staff of LBNL, particularly A. Brand, T. Mattox, and T. Kuykendall, for their support. Publisher Copyright: {\textcopyright} 2020, This is a U.S. government work and not under copyright protection in the U.S.; foreign copyright protection may apply.",
year = "2020",
month = dec,
day = "1",
doi = "10.1038/s41467-020-15933-2",
language = "English (US)",
volume = "11",
journal = "Nature Communications",
issn = "2041-1723",
publisher = "Nature Publishing Group",
number = "1",
}