B
Bruno Fontaine
Researcher at University of Rennes
Publications - 36
Citations - 710
Bruno Fontaine is an academic researcher from University of Rennes. The author has contributed to research in topics: Thermoelectric effect & Crystal structure. The author has an hindex of 15, co-authored 36 publications receiving 590 citations.
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Journal ArticleDOI
Ultralow Lattice Thermal Conductivity and Enhanced Thermoelectric Performance in SnTe:Ga Materials
Rabih Al Rahal Al Orabi,Rabih Al Rahal Al Orabi,Junphil Hwang,Chan Chieh Lin,Régis Gautier,Bruno Fontaine,Woochul Kim,Jong-Soo Rhyee,Daehyun Wee,Marco Fornari +9 more
TL;DR: In this paper, it was shown that Ga-doping in SnTe may lower the lattice thermal conduction slightly below the theoretical amorphous minimum at high temperature. But this effect was not justified by the spontaneous formation of nanoprecipitates as GaTe.
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Realizing a stable high thermoelectric zT ∼ 2 over a broad temperature range in Ge 1−x−y Ga x Sb y Te via band engineering and hybrid flash-SPS processing
Bhuvanesh Srinivasan,Bhuvanesh Srinivasan,Alain Gellé,Francesco Gucci,Catherine Boussard-Plédel,Bruno Fontaine,Régis Gautier,Jean-François Halet,Michael J. Reece,Bruno Bureau +9 more
TL;DR: In this paper, the electronic bands in Ga-Sb codoped GeTe have been manipulated by hybrid flash-spark plasma sintering to achieve a remarkably high and stable thermoelectric figure of merit close to 2.
Journal ArticleDOI
Sb Doping of Metallic CuCr2S4 as a Route to Highly Improved Thermoelectric Properties
Atta U. Khan,Rabih Al Rahal Al Orabi,Rabih Al Rahal Al Orabi,Amir Pakdel,Jean-Baptiste Vaney,Bruno Fontaine,Régis Gautier,Jean-François Halet,Seiji Mitani,Seiji Mitani,Takao Mori,Takao Mori +11 more
TL;DR: In this paper, the thermoelectric properties of CuCr2-xSbxS4 (0.22 ≤ x ≤ 0.5) were reported for the first time.
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Combined theoretical and time-resolved photoluminescence investigations of [Mo6Bri8Bra6]2− metal cluster units: evidence of dual emission
Karine Costuas,Alexandre Garreau,Alain Bulou,Bruno Fontaine,Jérôme Cuny,Jérôme Cuny,Régis Gautier,Michel Mortier,Yann Molard,Jean-Luc Duvail,Eric Faulques,Stéphane Cordier +11 more
TL;DR: It is shown for the first time that important geometrical relaxations occur at the triplet states either by the outstretching of an apex away from the square plane of the Mo6 octahedron or by the elongation of one Mo-Mo bond.
Journal ArticleDOI
Impact of Coinage Metal Insertion on the Thermoelectric Properties of GeTe Solid-State Solutions
Bhuvanesh Srinivasan,Régis Gautier,Francesco Gucci,Bruno Fontaine,Jean-François Halet,François Cheviré,Catherine Boussard-Plédel,Michael J. Reece,Bruno Bureau +8 more
TL;DR: In this article, a comprehensive study on the thermoelectric effect of Ag substitution in GeTe solid solutions, a congenital base for highly efficient TAGS-m [(GeTe)m(AgSbTe2)100 −m] materials, was performed.