Open AccessCost‐effective chemical solution synthesis of bismuth telluride nanostructure for thermoelectric applications
Author(s) -
Mamur Hayati,
Dilmac Omer Faruk,
Korucu Haluk,
Bhuiyan Mohammad Ruhul Amin
Publication year - 2018
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2018.0116
Subject(s) - bismuth telluride , scanning electron microscope , materials science , bismuth , nanostructure , thermoelectric effect , tellurium , chemical engineering , nanotechnology , telluride , thermoelectric materials , analytical chemistry (journal) , metallurgy , chemistry , composite material , organic chemistry , physics , thermodynamics , thermal conductivity , engineering
In this work, the bismuth telluride (Bi 2 Te 3 ) nanostructure for thermoelectric applications was successfully synthesised by a new cost‐effective chemical solution process. Firstly, the metal solutions of bismuth (III) nitrate pentahydrate and tellurium dioxide were mixed together at room temperature with adjusting the hydrodynamic atmosphere and introduced the sodium hydroxide. After that, different characterisation parameters, such as X‐ray diffraction, atomic force microscopy (AFM), scanning electron microscopy (SEM), energy dispersive X‐ray, and transverse electron microscopy (TEM) were obtained. Then, the average crystalline size of the Bi 2 Te 3 nanostructure was found 23 nm. According to these obtained results, the materials consist of every specimen in nano range dimension in AFM studies. The elemental of Bi and Te were arranged with their quite stoichiometric atomic ratio observed by SEM. Ultimately, the TEM micrographs showed that the powders exhibited an aggregate phenomenon, and the primary crystalline size was about low dimension.