Title of article :
Structural, optical and photoacoustic study of milled and melted Bi2Se3
Author/Authors :
Poffo، نويسنده , , C.M. and de Lima، نويسنده , , J.C. and Souza، نويسنده , , S.M. and Triches، نويسنده , , D.M. and Nogueira، نويسنده , , T.P.O. and Borges، نويسنده , , Z.V. and Manzato، نويسنده , , L.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2014
Abstract :
Powder Bi2Se3 was produced through Mechanical Alloying (MA) and Melting Technique (MT) routes. Structural, optical and photoacoustic properties were evaluated by X-ray diffraction (XRD), Raman Spectroscopy (RS) and Photoacoustic Absorption Spectroscopy (PAS). Minority Bi2O2Se phase was nucleated in both samples. PAS measurements showed a thermal diffusivity reduction of 40% for Bi2Se3 produced through MA when compared with Bi2Se3 produced by MT. In addition, thermal diffusivity of Bi2Se3 obtained by MA and MT was a new report in literature.
Keywords :
thermoelectric materials , mechanical alloying , Raman spectroscopy , Photoacoustic absorption , nanostructured materials
Journal title :
Journal of Molecular Structure
Journal title :
Journal of Molecular Structure
