Effective dopants for CuI single nanocrystals as a promising room temperature thermoelectric material
作者： Numan Salah , Abdullah M. Abusorrah , Yousef N. Salah , M. Almasoudi , Neazar Baghdadi
DOI: 10.1016/J.CERAMINT.2020.07.209
关键词:
摘要: Abstract Room temperature (RT) thermoelectric (TE) materials are of great importance for harvesting energy from solar heat or other hot environments. The nontoxic, earth-abundant copper iodide (CuI) has a high Seebeck coefficient at RT; however, its electrical conductivity needs to be further enhanced better TE performance. In this work, pure and doped CuI single nanocrystals were synthesized by the precipitation method in ethanol medium. formed nanoparticles (NPs) have crystallinity gamma phase. Among several metallic dopants, Tb Fe found effective enhancing performance NPs. Tb-doped sample was highest power factor. concentration dopant optimized maximum factor Figure merit values RT approximately 30 μW/m K2 0.01 NPs 210 μW/m K2 0.08 0.05 mol% sample, respectively. This enhancement is correlated with incorporation mixed chemical states. characterized techniques, including XDR, XPS, TEM, SEM, UV–visible spectroscopy. might suitable devices generators.
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