Next Article in Journal
Advances in Functional Inorganic Materials Prepared by Wet Chemical Methods
Previous Article in Journal
Residual Repeated Impact Strength of Concrete Exposed to Elevated Temperatures
Article

Controlled Morphology and Its Effects on the Thermoelectric Properties of SnSe2 Thin Films

1
School of Chemical and Materials Engineering (SCME), National University of Science and Technology (NUST), H-12, Islamabad 44000, Pakistan
2
Department of Mechanical Engineering, School of Mechanical and Manufacturing Engineering, National University of Science and Technology (NUST), H-12, Islamabad 44000, Pakistan
3
Energy Safety Research Institute, College of Engineering, Swansea University, Bay Campus, Fabian Way, Swansea SA1 8EN, UK
*
Author to whom correspondence should be addressed.
Academic Editors: Adele Moatti, Jeffery A. Aguiar and Ritesh Sachan
Crystals 2021, 11(8), 942; https://doi.org/10.3390/cryst11080942
Received: 16 July 2021 / Revised: 3 August 2021 / Accepted: 7 August 2021 / Published: 13 August 2021
(This article belongs to the Special Issue Confined Crystals, Quantum Dots, and Nano Crystals)
In the last few years, the thermoelectric properties of tin selenide (SnSe) have been explored in much detail due to its high efficiency and green nature, being free of Te and Pb. In the same chalcogenide family, SnSe2 is also a layered structured material, but its thermoelectric potential has not been widely explored experimentally. Since SnSe2 has the layered structure, its electrical transport properties may strongly be affected by its microstructure and morphology. Here, we report the effect of reaction time on the structure, phase, and morphology of the SnSe2 during solvothermal synthesis process. We have studied four SnSe2 samples with different reaction times. The sample obtained after 16 h of reaction time was named as M1, for 20 h M2, similarly for 24 h was M3 and for 48 hours’ time, the sample was named as M4. We investigated its thermoelectric properties and found that phase purity and morphology can affect the thermoelectric performance of the synthesized samples. The peak power factor (PF) value along the ab plane was (0.69 μWcm−1K−2) for the M4 sample at 575 K, which was the highest among all the measured samples. The comparatively larger PF value of sample M4 can be related to the increase in its electrical conductivity due to increase in phase purity and band gap reduction. View Full-Text
Keywords: thermoelectric; SnSe2; controlled morphology thermoelectric; SnSe2; controlled morphology
Show Figures

Figure 1

MDPI and ACS Style

Siyar, M.; Farid, M.; Khan, H.; Umar, M.A.; Tanveer, W.H.; Safdar, A. Controlled Morphology and Its Effects on the Thermoelectric Properties of SnSe2 Thin Films. Crystals 2021, 11, 942. https://doi.org/10.3390/cryst11080942

AMA Style

Siyar M, Farid M, Khan H, Umar MA, Tanveer WH, Safdar A. Controlled Morphology and Its Effects on the Thermoelectric Properties of SnSe2 Thin Films. Crystals. 2021; 11(8):942. https://doi.org/10.3390/cryst11080942

Chicago/Turabian Style

Siyar, Muhammad, Maroosha Farid, Haad Khan, Malik A. Umar, Waqas H. Tanveer, and Amna Safdar. 2021. "Controlled Morphology and Its Effects on the Thermoelectric Properties of SnSe2 Thin Films" Crystals 11, no. 8: 942. https://doi.org/10.3390/cryst11080942

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop