The composite ratio between Bi and S can be adjusted by varying the ratio between two precursors and was determined by using EDS (TEM) technique. Thermoelectric properties of these bismuth sulfide nanobeads were also investigated and will be discussed comparatively with those from commercial bulk ...
However, its poor electrical transport properties have prevented Bi2S3 devices from realizing high thermoelectric performance. In this work, our motivation is to decrease the large electrical resistivity, which is recognized as the origin of the low ZT value in undoped Bi2S3. We combined melting ...
(SPS)制备了Bi2S3多晶块体热电材料.研究了MA过程中干 磨转速、湿磨时间和湿磨介质对Bi2s3多晶热电材料电传输性能的影响.分析了样品的物相,观察了显微组织,测试 了电传输性能和热传输性能.研究表明,以无水乙醇为湿磨介质时,随着湿磨时间的延长,出现了微量Bi203第二相, 样品的晶粒尺寸减小,电阻率大幅增加,...
Effect of spark plasma sintering temperature on thermoelectric properties of Bi2S3 polycrystal J Mater Res, 26 (2011), pp. 2711-2718 CrossrefView in ScopusGoogle Scholar [131] J.H. Kim, D. Bilc, S. Loo, J. Short, S.D. Mahanti, T. Hogan, et al. Synthesis and thermoelectric properti...
In this work, we have investigated the effect of Ce on the electronic structure, phase structure, microstructure and TE properties of CexBi2S3 (x = 0, 0.01, 0.03, 0.05) fabricated by combining mechanical alloying and spark plasma sintering. The calculated formation energy (ΔEF) indicates ...
Recently, bismuth sulfide (Bi2S3) has attracted much attention in the thermoelectric community owing to its abundance, low cost, and advanced properties. However, its poor electrical transport properties have prevented Bi2S3 devices from realizing high thermoelectric performance. In this work, our mot...
Achieving high thermoelectric properties of Bi2S3 via InCl3 doping. J. Mater. Sci. 55, 263–273 (2020). Article ADS CAS Google Scholar Guo, Y., Du, X. L., Wang, Y. L. & Yuan, Z. H. Simultaneous enhanced performance of electrical conductivity and Seebeck coefficient in Bi2-xSnx...
Here, we report thermoelectric properties of nanostructured Bi2S3 bulk samples by hot pressing solution-synthesized Bi2S3 nanonetworks, showing a low κlat and also a relatively high PF. The ZT can reach ~0.5 at 450 °C, which is much higher than ~0.1 of the ball milled and hot pressed...
Bi2S3polyolnanorodsthermoelectricsThis is the first report on the thermoelectric properties of a catalyst-free polyol method used to prepare stoichiometric Bi 2 x Cu x S 3 samples, x = 0.1, 0.2, 0.3, 0.4, via hot pressing. Various systematic approaches to arrive at in their stoichiometric ...
We have designed a composite-like microstructure to improve the thermoelectric (TE) properties of Bi2S3 polycrystals. The nanosized Bi2S3 powders derived from mechanical alloying (MA) were mixed with [001] oriented single crystalline Bi2S3 nanorods prepared by hydrothermal synthesis (HS), which ...