材料科学
弹丸
热电效应
热电材料
工程物理
纳米技术
化学工程
光电子学
复合材料
热导率
热力学
物理
工程类
作者
Hyunki Kim,Top Khac Le,Manil Kang,Jae-Ki Lee,Su-Dong Park,Sok Won Kim
标识
DOI:10.1016/j.matlet.2020.128394
摘要
This study investigates the thermoelectric performance of a bulk-type pellet nanodevice fabricated with pressed V2O5 nanospheres synthesized by chemical reaction and sized 258 ± 27 nm. The following thermoelectric properties in the 300–773 K temperature range were analyzed: thermal conductivity (λ), electrical conductivity (σ), Seebeck coefficient (S), and figure of merit (ZT). The bulk-type pellet thermoelectric device exhibited a higher S and lower σ compared to the film-type device at 300 K. With increasing temperature, the absolute value of S and λ slightly decreased but the σ value increased. The power factor (PF) and ZT value at 773 K were 1.43 × 10−6 Wm−1K−2 and 1.4 × 10−3, respectively.
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