Thermoelectric properties of hybrid organic-inorganic superlattices

Jesús Carrete; Natalio Mingo; Guangjun Tian; Hans Ågren; Alexander Baev; Paras N. Prasad

doi:10.1021/jp3025039

Thermoelectric properties of hybrid organic-inorganic superlattices

Jesús Carrete
, Natalio Mingo
, Guangjun Tian
, Hans Ågren
, Alexander Baev
, Paras N. Prasad

University of Santiago de Compostela
Commissariat à l’énergie atomique et aux énergies alternatives
KTH Royal Institute of Technology

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

We theoretically evaluate the thermoelectric transport coefficients of hybrid thiophene/SiGe superlattices and the effect of their chemical tuning via phenyl groups. Owing to the interplay between alloy scattering and phonon transmission at the molecular layers, very low thermal conductivities under 1 W/(m K) and values of ZT more than twice as large as those of bulk SiGe can be attained. These results highlight exciting possibilities of organic-inorganic hybrid systems, as compared to traditional inorganic thermoelectrics.

Original language	English
Pages (from-to)	10881-10886
Number of pages	6
Journal	Journal of Physical Chemistry C
Volume	116
Issue number	20
DOIs	https://doi.org/10.1021/jp3025039
State	Published - May 24 2012

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abstract = "We theoretically evaluate the thermoelectric transport coefficients of hybrid thiophene/SiGe superlattices and the effect of their chemical tuning via phenyl groups. Owing to the interplay between alloy scattering and phonon transmission at the molecular layers, very low thermal conductivities under 1 W/(m K) and values of ZT more than twice as large as those of bulk SiGe can be attained. These results highlight exciting possibilities of organic-inorganic hybrid systems, as compared to traditional inorganic thermoelectrics.",

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AU - Carrete, Jesús

AU - Mingo, Natalio

AU - Tian, Guangjun

AU - Ågren, Hans

AU - Baev, Alexander

AU - Prasad, Paras N.

PY - 2012/5/24

Y1 - 2012/5/24

N2 - We theoretically evaluate the thermoelectric transport coefficients of hybrid thiophene/SiGe superlattices and the effect of their chemical tuning via phenyl groups. Owing to the interplay between alloy scattering and phonon transmission at the molecular layers, very low thermal conductivities under 1 W/(m K) and values of ZT more than twice as large as those of bulk SiGe can be attained. These results highlight exciting possibilities of organic-inorganic hybrid systems, as compared to traditional inorganic thermoelectrics.

AB - We theoretically evaluate the thermoelectric transport coefficients of hybrid thiophene/SiGe superlattices and the effect of their chemical tuning via phenyl groups. Owing to the interplay between alloy scattering and phonon transmission at the molecular layers, very low thermal conductivities under 1 W/(m K) and values of ZT more than twice as large as those of bulk SiGe can be attained. These results highlight exciting possibilities of organic-inorganic hybrid systems, as compared to traditional inorganic thermoelectrics.

UR - https://www.scopus.com/pages/publications/84861525586

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DO - 10.1021/jp3025039

M3 - Article

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JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

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ER -

Thermoelectric properties of hybrid organic-inorganic superlattices

Abstract

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