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NANOSYSTEMS: PHYSICS, CHEMISTRY, MATHEMATICS, 2019, 10 (6), P. 686–693

Effect of doping with ‘se’ on structural, optical, electrical and thermoelectric properties of multilayers of Bi₂Te_2.7Se_0.3 / Sb₂Te₃ to enhance thermoelectric performance

M. Kumari – Department of Physics, Vivekananda Global University, jagatpura, Jaipur-303012, Rajasthan, India
Y. C. Sharma – Department of Physics, Vivekananda Global University, jagatpura, Jaipur-303012, Rajasthan, India; mjmanisha209@gmail.com

Selenium is known to be a semiconductor with many applications, and when it is doped in some chemical compounds, it changes the electrical properties of that compound which directly affect its thermoelectric performance. The present work is to synthesized multilayers of Bi₂Te_2.7Se_0.3 / Sb₂Te₃ by e-beam evaporation technique on glass substrate at room temperature. Prepared thin films were characterized by XRD and also study their electrical, optical and thermoelectrical properties to enhance the thermoelectric performance of Thermoelectric (TE) devices.

Keywords: thermoelectric, Bi₂Te_2.7Se_0.3, Sb₂Te₃, Figure of merit (ZT).

DOI 10.17586/2220-8054-2019-10-6-686-693

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