Electron doping in bottom-up engineered thermoelectric nanomaterials through HCl-mediated ligand displacement

Journal of the American Chemical Society
Maria IbáñezMercouri G Kanatzidis

Abstract

A simple and effective method to introduce precise amounts of doping in nanomaterials produced from the bottom-up assembly of colloidal nanoparticles (NPs) is described. The procedure takes advantage of a ligand displacement step to incorporate controlled concentrations of halide ions while removing carboxylic acids from the NP surface. Upon consolidation of the NPs into dense pellets, halide ions diffuse within the crystal structure, doping the anion sublattice and achieving n-type electrical doping. Through the characterization of the thermoelectric properties of nanocrystalline PbS, we demonstrate this strategy to be effective to control charge transport properties on thermoelectric nanomaterials assembled from NP building blocks. This approach is subsequently extended to PbTe(x)Se(1-x)@PbS core-shell NPs, where a significant enhancement of the thermoelectric figure of merit is achieved.

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Citations

Oct 30, 2015·ACS Nano·Daniel M BalazsMaria Antonietta Loi
Mar 8, 2016·Nature Communications·Maria IbáñezAndreu Cabot
Jul 17, 2015·Journal of the American Chemical Society·Ronald B SorianoMercouri G Kanatzidis
Apr 26, 2016·Journal of the American Chemical Society·Mickael D TessierZeger Hens
Jun 14, 2016·Nature Materials·Federica BertolottiNorberto Masciocchi
May 18, 2016·Scientific Reports·Shuanglong LuHongwei Gu
Jun 1, 2016·Physical Chemistry Chemical Physics : PCCP·Sebastian ChristensenBo Brummerstedt Iversen
Jul 28, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·J De RooI Van Driessche
Nov 19, 2015·Advanced Materials·Xinzheng LanEdward H Sargent
Jul 28, 2018·Nanotechnology·Sajad Yazdani, Michael Thompson Pettes
Dec 18, 2015·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Loredana ProtesescuMaksym V Kovalenko
Jul 30, 2020·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Katariina PussiSaeed Kamali
Jun 7, 2017·Scientific Reports·Jason D ForsterJeffrey J Urban
Feb 23, 2021·ACS Energy Letters·Mariano CalcabriniMaria Ibáñez
May 28, 2021·Nature·Ihor CherniukhMaksym V Kovalenko
Apr 3, 2018·Chemistry of Materials : a Publication of the American Chemical Society·Ryan M DragomanMaksym V Kovalenko
Apr 25, 2019·Journal of the American Chemical Society·Maria IbáñezMaksym V Kovalenko
May 3, 2019·Journal of the American Chemical Society·Christian Moeslund ZeuthenBo Brummerstedt Iversen
Jul 18, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Taisiia BerestokAndreu Cabot
Aug 1, 2018·Chemical Reviews·Sandeep Ghosh, Liberato Manna
Sep 17, 2019·Nano Letters·Evert DhaeneJonathan De Roo
Feb 13, 2018·Chemistry of Materials : a Publication of the American Chemical Society·Maria IbáñezMaksym V Kovalenko
Oct 20, 2021·ACS Applied Materials & Interfaces·Mengyao LiAndreu Cabot

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