Solution-based synthesis and processing of Sn- and Bi-doped Cu3SbSe4 nanocrystals, nanomaterials and ring-shaped thermoelectric generators

Palacios Clemente, Pablo and Wahnon Benarroch, Perla and Ortega Perez, Silvia Natividad and Lu, Jinyu and Fuster De La Mata, Juan Maria and Liu, Yu and Garcia, Gregorio and Ortega, Silvia and Cadavid, Doris and Ibanez, Maria and Xi, Lili and De Roo, Jonathan and Lopez, Antonio M. and Marti-sanchez, Sara and Cabezas, Ignasi and De La Mata, Maria and Luo, Zhishan and Dun, Chaochao and Dobrozhan, Oleksandr and Carroll, David L. and Zhang, Wenqing and Martins, Jose and Kovalenko, Maksym V. and Arbiol, Jordi and Noriega, German and Song, Jiming and Cabot, Andreu (2017). Solution-based synthesis and processing of Sn- and Bi-doped Cu3SbSe4 nanocrystals, nanomaterials and ring-shaped thermoelectric generators. "Journal of Materials Chemistry A", v. 5 (n. 6); pp. 2592-2602. ISSN 2050-7488. https://doi.org/10.1039/c6ta08467b.

Description

Title: Solution-based synthesis and processing of Sn- and Bi-doped Cu3SbSe4 nanocrystals, nanomaterials and ring-shaped thermoelectric generators
Author/s:
  • Palacios Clemente, Pablo
  • Wahnon Benarroch, Perla
  • Ortega Perez, Silvia Natividad
  • Lu, Jinyu
  • Fuster De La Mata, Juan Maria
  • Liu, Yu
  • Garcia, Gregorio
  • Ortega, Silvia
  • Cadavid, Doris
  • Ibanez, Maria
  • Xi, Lili
  • De Roo, Jonathan
  • Lopez, Antonio M.
  • Marti-sanchez, Sara
  • Cabezas, Ignasi
  • De La Mata, Maria
  • Luo, Zhishan
  • Dun, Chaochao
  • Dobrozhan, Oleksandr
  • Carroll, David L.
  • Zhang, Wenqing
  • Martins, Jose
  • Kovalenko, Maksym V.
  • Arbiol, Jordi
  • Noriega, German
  • Song, Jiming
  • Cabot, Andreu
Item Type: Article
Título de Revista/Publicación: Journal of Materials Chemistry A
Date: 2017
ISSN: 2050-7488
Volume: 5
Subjects:
Faculty: E.T.S. de Ingeniería Aeronáutica y del Espacio (UPM)
Department: Física Aplicada a las Ingenierías Aeronáutica y Naval
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Copper-based chalcogenides that comprise abundant, low-cost, and environmental friendly elements are excellent materials for a number of energy conversion applications, including photovoltaics, photocatalysis, and thermoelectrics (TE). In such applications, the use of solution-processed nanocrystals (NCs) to produce thin films or bulk nanomaterials has associated several potential advantages, such as high material yield and throughput, and composition control with unmatched spatial resolution and cost. Here we report on the production of Cu3SbSe4 (CASe) NCs with tuned amounts of Sn and Bi dopants. After proper ligand removal, as monitored by nuclear magnetic resonance and infrared spectroscopy, these NCs were used to produce dense CASe bulk nanomaterials for solid state TE energy conversion. By adjusting the amount of extrinsic dopants, dimensionless TE figures of merit (ZT) up to 1.26 at 673 K were reached. Such high ZT values are related to an optimized carrier concentration by Sn doping, a minimized lattice thermal conductivity due to efficient phonon scattering at point defects and grain boundaries, and to an increase of the Seebeck coefficient obtained by a modification of the electronic band structure with Bi doping. Nanomaterials were further employed to fabricate ring-shaped TE generators to be coupled to hot pipes, which provided 20 mV and 1 mW per TE element when exposed to a 160 ºC temperature gradient. The simple design and good thermal contact associated with the ring geometry and the potential low cost of the material solution processing may allow the fabrication of TE generators with short payback times.

Funding Projects

TypeCodeAcronymLeaderTitle
FP7UnspecifiedUnspecified2012-310250FP7-NMP-2012-310250
Government of SpainENE2013-46624-C4-3-RBOOSTERUnspecifiedUnspecified
Government of SpainMAT2014-59961-C2-2-RUnspecifiedUnspecifiede-TNT
Madrid Regional GovernmentS2013/MAE/2780UnspecifiedUnspecifiedMADRID-PV

More information

Item ID: 50150
DC Identifier: http://oa.upm.es/50150/
OAI Identifier: oai:oa.upm.es:50150
DOI: 10.1039/c6ta08467b
Official URL: http://pubs.rsc.org/en/content/articlelanding/2016/ta/c6ta08467b#!divAbstract
Deposited by: Memoria Investigacion
Deposited on: 04 Apr 2019 11:42
Last Modified: 30 May 2019 08:28
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