snse thin film
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2022 ◽  
Author(s):  
Hirenkumar Shantilal Jagani ◽  
Shubham Umeshkumar Gupta ◽  
Karan Bhoraniya ◽  
Mayuri Navapariya ◽  
V. M. Pathak ◽  
...  

Tin Selenide (SnSe), a group IV-VI compound semiconductor material is used to fabricate various solid state devices such as memory switching devices, P-N junction diodes, Schottky barrier diodes, etc. In...


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Sunao Shimizu ◽  
Kazumoto Miwa ◽  
Takeshi Kobayashi ◽  
Yujiro Tazawa ◽  
Shimpei Ono

AbstractGiven the growing demand for environmentally friendly energy sources, thermoelectric energy conversion has attracted increased interest as a promising CO2-free technology. SnSe single crystals have attracted attention as a next generation thermoelectric material due to outstanding thermoelectric properties arising from ultralow thermal conductivity. For practical applications, on the other hand, polycrystalline SnSe should be also focused because the production cost and the flexibility for applications are important factors, which requires the systematic investigation of the stability of thermoelectric performance under a pseudo operating environment. Here, we report that the physical properties of SnSe crystals with nano to submicron scale are drastically modified by atmospheric annealing. We measured the Seebeck effect while changing the annealing time and found that the large positive thermopower, + 757 μV K−1, was completely suppressed by annealing for only a few minutes and was eventually inverted to be the large negative value, − 427 μV K−1. This result would further accelerate intensive studies on SnSe nanostructures, especially focusing on the realistic device structures and sealing technologies for energy harvesting applications.


Vacuum ◽  
2020 ◽  
Vol 177 ◽  
pp. 109343 ◽  
Author(s):  
Zeng Li ◽  
Yixin Guo ◽  
Fei Zhao ◽  
Chengqi Nie ◽  
Jingyu Shi ◽  
...  

2019 ◽  
Vol 12 (03) ◽  
pp. 1950040 ◽  
Author(s):  
Zijie Chen ◽  
Tong Shen ◽  
Kangyin Li ◽  
Jianxiao Si

SnSe is a potential thermoelectric material, but there are few reports about the thermoelectric properties of the film. In this work, SnSe thin films were deposited on glass substrates by RF magnetron sputtering from SnSe alloy target. The effect of substrate temperature on the structural and thermoelectric properties was investigated. It was found that the columnar grains and the surface roughness of the films increase with increasing the substrate temperature. The film deposited at 558 K exhibited a high crystalline quality and stoichiometric composition, which has a maximum power factor of 1.4[Formula: see text]uWcm[Formula: see text]K[Formula: see text] at 575[Formula: see text]K. The results of this work demonstrate the importance of high substrate temperature to obtain high thermoelectric performance SnSe films.


2019 ◽  
Vol 7 (30) ◽  
pp. 17981-17986 ◽  
Author(s):  
Lirong Song ◽  
Jiawei Zhang ◽  
Bo Brummerstedt Iversen

SnSe thin films were successfully grown using single-target magnetron sputtering. The SnSe thin film annealed at 700 K exhibits superior thermoelectric performance compared with previously reported SnSe films and polycrystalline SnSe bulk material.


2018 ◽  
Vol 176 ◽  
pp. 251-258 ◽  
Author(s):  
Vasudeva Reddy Minnam Reddy ◽  
Greta Lindwall ◽  
Babu Pejjai ◽  
Sreedevi Gedi ◽  
Tulasi Ramakrishna Reddy Kotte ◽  
...  

2014 ◽  
Vol 82 (1) ◽  
pp. 25-30 ◽  
Author(s):  
Nordin SABLI ◽  
Zainal Abidin TALIB ◽  
Wan Mahmood Mat YUNUS ◽  
Zulkarnain ZAINAL ◽  
Hikmat S. HILAL ◽  
...  

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