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.com
Volume 6
Research & Reviews: Journal of Material Sciences
ISSN: 2321-6212
Magnetic Materials 2018
October 22-23, 2018
October 22-23, 2018 | Rome, Italy
3
rd
International Conference on
Magnetism and Magnetic Materials
Process, characterization and physical properties of 3D transition ion doped-tetrahedrite compounds
Adil Guler
1
, Cihat Boyraz
1
, Dmitriy Shulgin
2
, Georgy Mozzhukhin
3
and
Bulat Rameev
2, 3
1
Marmara University, Turkey
2
Gebze Technical University, Turkey
3
Kazan E.K. Zavoisky Physical-Technical Institute of RAS, Russia
T
he demand on new and waste energy potential increases with decreasing energy sources in the world. This situation brings
new attitudes globally on using waste energy and discovering new energy sources. Among the main types of waste renewable
energy, thermoelectricity which is converted electric energy from waste heat play a very important role on science and with its
applications on industry. Among the many sulphate salts, the group of tetrahedrite/tennantite has potential interest in physics
in many ways are widely used in thermoelectric and photovoltaic applications. The importance of the thermoelectric researches
is coming from neglecting the high material costs and long-termed synthesizing procedures. On the other hand, the properties
of cheapness, accesibility, minimized risk factor in the usage of thermoelectric materials make important for technological
applications in scientific studies. Recently, tetrahedrite Cu
12
Sb
4
S
13
material doped with different dopant elements exhibits
important thermoelectric properties. Tetrahedrite, Cu
12
Sb
4
S
13
, is emerging as a promising phase in thermoelectrics. It exhibits
an intrinsically low lattice thermal conductivity (κL = 0.4Wm
-1
K
-1
at 700 K) due to unique features in its crystal structure. At the
same time, the defect zinc-blende lattice ensures a good crystalline pathway for electron transport. At the same time, tetrahedrites
are one of the most abundant TE minerals on Earth. In this study, main material Cu
12
Sb
4
S
13
tetrahedrite doped with 3d ions such
as Sb and As were synthesized using solid state reaction method. The annealing procedure was optimized for Sb and As doped
-Cu
12
Sb
4
S
13
tetrahedrite samples. Structural characterization was done by X-ray diffraction method (XRD). Scanning electron
microscope (SEM) and an
in-situ
electron dispersive spectroscopy (EDS) were used for particle size and elemental compositions
respectively. The compositions were also analyzed by electron spin resonance (EPR) and vibrating sample magnetometer (VSM)
tools as shown in images.
Recent Publications
1. Matsubara K (2002) Development of a high efficient thermoelectric stack for a waste exhaust heat recovery of vehicles.
Thermoelectrics DOI: 10.1109/ICT.2002.1190350.
2. AllenH, ChenR, DiazDR, LiangW, Garnett EC, MarkN, Majumdar A and Peidong Y (2008) Enhanced thermoelectric
performance of rough silicon nanowires. Nature 451:163–7.
3. Snyder G J and Toberer E S (2008) Complex thermoelectric materials. Nature Materials 7(2):105-114.
4. Lu X, Morelli D T, Xia Y, Zhou F, Ozolins V, Chi H, Zhou X and Uher C (2013) High performance thermoelectricity in
earth-abundant compounds based on natural mineral tetrahedrites. Advanced Energy Materials 3(3):342–348.
5. Morelli D T and Lu X (2013) Natural mineral tetrahedrite as a direct source of thermoelectric materials. Physical
Chemistry Chemical Physics 15:5762−5766.
Biography
Adil Guler, Lecturer, now is a Researcher in Marmara University, Ataturk Faculty of Education, Department of Computer and Instructive Technology Teacher. He
completed his BSc degree in Physics and Specialist in Magnetic and Superconductive materials. He got his PhD at Marmara University, Department of Physics.
He works in the research group of Prof. Dr. Arunava Gupta as a Research Scientist in Alabama State University. He also makes projects with Assist. Prof. Dr. Cihat
Boyraz on superconductivity and magnetism. His magnetic superconductivity group has been working on Fe-based superconductors for 5 years.
adil.guler@marmara.edu.trAdil Guler et al., Res. Rev. J Mat. Sci. 2018, Volume 6
DOI: 10.4172/2321-6212-C6-029