Colloidal synthesis and functional properties of quaternary Cu based semiconductors: Cu2HgGeSe4

W. Li, M. Ibanez, D. Cadavid, R. Zamani, J. Rubio Garcia, S. Gorsse, J. Morante, J. Arbiol, A. Cabot, Journal of Nanoparticle Research 16 (2014).


Journal Article | Published
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Abstract
Herein, a colloidal synthetic route to produce highly monodisperse Cu2HgGeSe4 (CHGSe) nanoparticles (NPs) is presented in detail. The high yield of the developed procedure allowed the production of CHGSe NPs at the gram scale. A thorough analysis of their structural and optical properties is shown. CHGSe NPs displayed poly-tetrahedral morphology and narrow size distributions with average size in the range of 10–40 nm and size dispersions below 10 %. A 1.6 eV optical band gap was measured by mean of UV–Vis. By adjusting the cation ratio, an effective control of their electrical conductivity is achieved. The prepared NPs are used as building blocks for the production of CHGSe bulk nanostructured materials. The thermoelectric properties of CHGSe nanomaterials are studied in the temperature range from 300 to 730 K. CHGSe nanomaterials reached electrical conductivities up to 5 × 104 S m−1, Seebeck coefficients above 100 μV K−1, and thermal conductivities below 1.0 W m−1 K−1 which translated into thermoelectric figures of merit up to 0.34 at 730 K.
Publishing Year
Date Published
2014-02-18
Journal Title
Journal of Nanoparticle Research
Acknowledgement
The research was supported by the European Regional Development Funds (ERDF, ‘‘FEDER Programa Competitivitat de Catalunya 2007–2013’’).
Volume
16
Issue
3
IST-REx-ID

Cite this

Li W, Ibanez M, Cadavid D, et al. Colloidal synthesis and functional properties of quaternary Cu based semiconductors: Cu2HgGeSe4. Journal of Nanoparticle Research. 2014;16(3). doi:10.1007/s11051-014-2297-2
Li, W., Ibanez, M., Cadavid, D., Zamani, R., Rubio Garcia, J., Gorsse, S., … Cabot, A. (2014). Colloidal synthesis and functional properties of quaternary Cu based semiconductors: Cu2HgGeSe4. Journal of Nanoparticle Research, 16(3). https://doi.org/10.1007/s11051-014-2297-2
Li, Wenhua, Maria Ibanez, Doris Cadavid, Reza Zamani, Javier Rubio Garcia, Stéphane Gorsse, Joan Morante, Jordi Arbiol, and Andreu Cabot. “Colloidal Synthesis and Functional Properties of Quaternary Cu Based Semiconductors: Cu2HgGeSe4.” Journal of Nanoparticle Research 16, no. 3 (2014). https://doi.org/10.1007/s11051-014-2297-2.
W. Li et al., “Colloidal synthesis and functional properties of quaternary Cu based semiconductors: Cu2HgGeSe4,” Journal of Nanoparticle Research, vol. 16, no. 3, 2014.
Li W, Ibanez M, Cadavid D, Zamani R, Rubio Garcia J, Gorsse S, Morante J, Arbiol J, Cabot A. 2014. Colloidal synthesis and functional properties of quaternary Cu based semiconductors: Cu2HgGeSe4. Journal of Nanoparticle Research. 16(3).
Li, Wenhua, et al. “Colloidal Synthesis and Functional Properties of Quaternary Cu Based Semiconductors: Cu2HgGeSe4.” Journal of Nanoparticle Research, vol. 16, no. 3, Kluwer, 2014, doi:10.1007/s11051-014-2297-2.

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