{"page":"2573 - 2586","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","language":[{"iso":"eng"}],"acknowledgement":"The research was supported by the European Regional Development Funds (ERDF, “FEDER Programa Competitivitat de Catalunya 2007-2013”) and the Spanish MICINN Projects MAT2008-05779, MAT2010-15138, CSD2009-00050, and CSD2009-00013. M.I. thanks the Spanish MICINN for her Ph.D. grant. J.A. and R.Z. also acknowledge Generalitat de Catalunya 2009-SGR-770 and XaRMAE.\r\n\r\nThe authors declare no competing financial interest.","publist_id":"7483","author":[{"orcid":"0000-0001-5013-2843","first_name":"Maria","full_name":"Ibáñez, Maria","last_name":"Ibáñez","id":"43C61214-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Reza","full_name":"Zamani, Reza","last_name":"Zamani"},{"full_name":"Gorsse, Stéphane","first_name":"Stéphane","last_name":"Gorsse"},{"last_name":"Fan","full_name":"Fan, Jiandong","first_name":"Jiandong"},{"last_name":"Ortega","full_name":"Ortega, Silvia","first_name":"Silvia"},{"last_name":"Cadavid","first_name":"Doris","full_name":"Cadavid, Doris"},{"full_name":"Morante, Joan","first_name":"Joan","last_name":"Morante"},{"full_name":"Arbiol, Jordi","first_name":"Jordi","last_name":"Arbiol"},{"last_name":"Cabot","full_name":"Cabot, Andreu","first_name":"Andreu"}],"extern":"1","day":"28","year":"2013","date_published":"2013-02-28T00:00:00Z","quality_controlled":"1","article_processing_charge":"No","date_updated":"2021-01-12T07:43:25Z","intvolume":"         7","publication":"ACS Nano","date_created":"2018-12-11T11:45:55Z","status":"public","abstract":[{"text":"The bottom-up assembly of nanocrystals provides access to a three-dimensional composition control at the nanoscale not attainable by any other technology. In particular, colloidal nanoheterostructures, with intrinsic multiphase organization, are especially appealing building blocks for the bottom-up production of nanocomposites. In the present work, we use PbTe-PbS as the model material system and thermoelectricity as the paradigmatic application to investigate the potential of the bottom-up assembly of core-shell nanoparticles to produce functional nanocomposites. With this goal in mind, a rapid, high-yield and scalable colloidal synthetic route to prepare grams of PbTe@PbS core-shell nanoparticles with unprecedented narrow size distributions and exceptional composition control is detailed. PbTe@PbS nanoparticles were used as building blocks for the bottom-up production of PbTe-PbS nanocomposites with tuned composition. In such PbTe-PbS nanocomposites, synergistic nanocrystal doping effects result in up to 10-fold higher electrical conductivities than in pure PbTe and PbS nanomaterials. At the same time, the acoustic impedance mismatch between PbTe and PbS phases and a partial phase alloying provide PbTe-PbS nanocomposites with strongly reduced thermal conductivities. As a result, record thermoelectric figures of merit (ZT) of ∼1.1 were obtained from undoped PbTe and PbS phases at 710 K. These high ZT values prove the potential of the proposed processes to produce efficient functional nanomaterials with programmable properties. © 2013 American Chemical Society.","lang":"eng"}],"article_type":"original","oa_version":"None","citation":{"chicago":"Ibáñez, Maria, Reza Zamani, Stéphane Gorsse, Jiandong Fan, Silvia Ortega, Doris Cadavid, Joan Morante, Jordi Arbiol, and Andreu Cabot. “Core Shell Nanoparticles as Building Blocks for the Bottom-up Production of Functional Nanocomposites: PbTe PbS Thermoelectric Properties.” <i>ACS Nano</i>. American Chemical Society, 2013. <a href=\"https://doi.org/10.1021/nn305971v\">https://doi.org/10.1021/nn305971v</a>.","ieee":"M. Ibáñez <i>et al.</i>, “Core shell nanoparticles as building blocks for the bottom-up production of functional nanocomposites: PbTe PbS thermoelectric properties,” <i>ACS Nano</i>, vol. 7, no. 3. American Chemical Society, pp. 2573–2586, 2013.","mla":"Ibáñez, Maria, et al. “Core Shell Nanoparticles as Building Blocks for the Bottom-up Production of Functional Nanocomposites: PbTe PbS Thermoelectric Properties.” <i>ACS Nano</i>, vol. 7, no. 3, American Chemical Society, 2013, pp. 2573–86, doi:<a href=\"https://doi.org/10.1021/nn305971v\">10.1021/nn305971v</a>.","ista":"Ibáñez M, Zamani R, Gorsse S, Fan J, Ortega S, Cadavid D, Morante J, Arbiol J, Cabot A. 2013. Core shell nanoparticles as building blocks for the bottom-up production of functional nanocomposites: PbTe PbS thermoelectric properties. ACS Nano. 7(3), 2573–2586.","ama":"Ibáñez M, Zamani R, Gorsse S, et al. Core shell nanoparticles as building blocks for the bottom-up production of functional nanocomposites: PbTe PbS thermoelectric properties. <i>ACS Nano</i>. 2013;7(3):2573-2586. doi:<a href=\"https://doi.org/10.1021/nn305971v\">10.1021/nn305971v</a>","apa":"Ibáñez, M., Zamani, R., Gorsse, S., Fan, J., Ortega, S., Cadavid, D., … Cabot, A. (2013). Core shell nanoparticles as building blocks for the bottom-up production of functional nanocomposites: PbTe PbS thermoelectric properties. <i>ACS Nano</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/nn305971v\">https://doi.org/10.1021/nn305971v</a>","short":"M. Ibáñez, R. Zamani, S. Gorsse, J. Fan, S. Ortega, D. Cadavid, J. Morante, J. Arbiol, A. Cabot, ACS Nano 7 (2013) 2573–2586."},"type":"journal_article","doi":"10.1021/nn305971v","_id":"343","title":"Core shell nanoparticles as building blocks for the bottom-up production of functional nanocomposites: PbTe PbS thermoelectric properties","month":"02","issue":"3","volume":7,"publication_status":"published","publisher":"American Chemical Society"}