---
_id: '339'
abstract:
- lang: eng
text: A high-yield and upscalable colloidal synthesis route for the production of
quaternary I 2-II-IV-VI 4 nanocrystals, particularly stannite Cu 2+xCd 1-xSnSe
4, with narrow size distribution and precisely controlled composition is presented.
It is also shown here how the diversity of valences in the constituent elements
allows an effective control of their electrical conductivity through the adjustment
of the cation ratios. At the same time, while the crystallographic complexity
of quaternary chalcogenides is associated with intrinsically low thermal conductivities,
the reduction of the lattice dimensions to the nanoscale further reduces the materials
thermal conductivity. In the specific case of the stannite crystal structure,
a convenient slab distribution of the valence band maximum states permits a partial
decoupling of the p-type electrical conductivity from both the Seebeck coefficient
and the thermal conductivity. Combining these features, we demonstrate how an
initial optimization of the nanocrystals Cd/Cu ratio allowed us to obtain low-temperature
solution-processed materials with ZT values up to 0.71 at 685 K.
acknowledgement: This work was supported by the Spanish MICINN Projects MAT2008-05779,
MAT2008-03400-E/MAT, MAT2010-15138, ENE2008-03277-E/CON, CSD2009-00050. and CSD2009-00013.
M.I. and N.G.-C. thank the Spanish MICINN for the PhD grant. J.A. and R.Z. also
acknowledge Generalitat de Catalunya 2009-SGR-770 and XaRMAE. A.C. is thankful for
financial support through the Ramon y Cajal program of the Spanish MICINN. N.G.-C.
and J.D.P. are thankful for the computer resources, technical expertise and assistance
provided by the Barcelona Supercomputing Center - Centro Nacional de Supercomputación.
article_processing_charge: No
article_type: original
author:
- first_name: Maria
full_name: Ibáñez, Maria
id: 43C61214-F248-11E8-B48F-1D18A9856A87
last_name: Ibáñez
orcid: 0000-0001-5013-2843
- first_name: Doris
full_name: Cadavid, Doris
last_name: Cadavid
- first_name: Reza
full_name: Zamani, Reza
last_name: Zamani
- first_name: Nuria
full_name: García Castelló, Nuria
last_name: García Castelló
- first_name: Victora
full_name: Izquierdo Roca, Victora
last_name: Izquierdo Roca
- first_name: Wenhua
full_name: Li, Wenhua
last_name: Li
- first_name: Andrew
full_name: Fairbrother, Andrew
last_name: Fairbrother
- first_name: Joan
full_name: Prades, Joan
last_name: Prades
- first_name: Alexey
full_name: Shavel, Alexey
last_name: Shavel
- first_name: Jordi
full_name: Arbiol, Jordi
last_name: Arbiol
- first_name: Alejandro
full_name: Pérez Rodríguez, Alejandro
last_name: Pérez Rodríguez
- first_name: Joan
full_name: Morante, Joan
last_name: Morante
- first_name: Andreu
full_name: Cabot, Andreu
last_name: Cabot
citation:
ama: 'Ibáñez M, Cadavid D, Zamani R, et al. Composition control and thermoelectric
properties of quaternary chalcogenide nanocrystals: The case of stannite Cu2CdSnSe4.
Chemistry of Materials. 2012;24(3):562-570. doi:10.1021/cm2031812'
apa: 'Ibáñez, M., Cadavid, D., Zamani, R., García Castelló, N., Izquierdo Roca,
V., Li, W., … Cabot, A. (2012). Composition control and thermoelectric properties
of quaternary chalcogenide nanocrystals: The case of stannite Cu2CdSnSe4. Chemistry
of Materials. American Chemical Society. https://doi.org/10.1021/cm2031812'
chicago: 'Ibáñez, Maria, Doris Cadavid, Reza Zamani, Nuria García Castelló, Victora
Izquierdo Roca, Wenhua Li, Andrew Fairbrother, et al. “Composition Control and
Thermoelectric Properties of Quaternary Chalcogenide Nanocrystals: The Case of
Stannite Cu2CdSnSe4.” Chemistry of Materials. American Chemical Society,
2012. https://doi.org/10.1021/cm2031812.'
ieee: 'M. Ibáñez et al., “Composition control and thermoelectric properties
of quaternary chalcogenide nanocrystals: The case of stannite Cu2CdSnSe4,” Chemistry
of Materials, vol. 24, no. 3. American Chemical Society, pp. 562–570, 2012.'
ista: 'Ibáñez M, Cadavid D, Zamani R, García Castelló N, Izquierdo Roca V, Li W,
Fairbrother A, Prades J, Shavel A, Arbiol J, Pérez Rodríguez A, Morante J, Cabot
A. 2012. Composition control and thermoelectric properties of quaternary chalcogenide
nanocrystals: The case of stannite Cu2CdSnSe4. Chemistry of Materials. 24(3),
562–570.'
mla: 'Ibáñez, Maria, et al. “Composition Control and Thermoelectric Properties of
Quaternary Chalcogenide Nanocrystals: The Case of Stannite Cu2CdSnSe4.” Chemistry
of Materials, vol. 24, no. 3, American Chemical Society, 2012, pp. 562–70,
doi:10.1021/cm2031812.'
short: M. Ibáñez, D. Cadavid, R. Zamani, N. García Castelló, V. Izquierdo Roca,
W. Li, A. Fairbrother, J. Prades, A. Shavel, J. Arbiol, A. Pérez Rodríguez, J.
Morante, A. Cabot, Chemistry of Materials 24 (2012) 562–570.
date_created: 2018-12-11T11:45:54Z
date_published: 2012-01-31T00:00:00Z
date_updated: 2021-01-12T07:43:09Z
day: '31'
doi: 10.1021/cm2031812
extern: '1'
intvolume: ' 24'
issue: '3'
language:
- iso: eng
month: '01'
oa_version: None
page: 562 - 570
publication: Chemistry of Materials
publication_status: published
publisher: American Chemical Society
publist_id: '7489'
quality_controlled: '1'
status: public
title: 'Composition control and thermoelectric properties of quaternary chalcogenide
nanocrystals: The case of stannite Cu2CdSnSe4'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 24
year: '2012'
...