Enhancement of the Thermoelectric Properties of Cu1.98Se by Na Doping

Zhu, Zheng; Zhang, Y. W.; Song, Hang; Li, X. J.

doi:10.1007/s11664-018-6694-7

Cited by 8 publications

(1 citation statement)

References 34 publications

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“…Moreover, it should be mentioned that Zheng Zhu et al, stated a new finding that the thermal capacity

of their samples with Na, K dopant has an inversely proportional relationship with pore density, which is not pointed out in the Qiujun Hu’s work. Same experiments are carried out by Zhu Zheng’s group on copper selenide with Cu deficiency (Cu 2-x Se) as well [ 46 ]. However, the ZT value of their sample Cu 1.94 Na 0.04 Se only reached 1.32 at 973 K, which is far less than stoichiometric Cu 2 Se doped by alkali metals.…”

Section: Doping By Group Ia and Iia Elementsmentioning

confidence: 99%

Doping Effect on Cu2Se Thermoelectric Performance: A Review

et al. 2020

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Cu2Se, owing to its intrinsic excellent thermoelectric (TE) performance emerging from the peculiar nature of “liquid-like” Cu+ ions, has been regarded as one of the most promising thermoelectric materials recently. However, the commercial use is still something far from reach unless effective approaches can be applied to further increase the figure of merit (ZT) of Cu2Se, and doping has shown wide development prospect. Until now, the highest ZT value of 2.62 has been achieved in Al doped samples, which is twice as much as the original pure Cu2Se. Herein, various doping elements from all main groups and some transitional groups that have been used as dopants in enhancing the TE performance of Cu2Se are summarized, and the mechanisms of TE performance enhancement are analyzed. In addition, points of great concern for further enhancing the TE performance of doped Cu2Se are proposed.

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“…Moreover, it should be mentioned that Zheng Zhu et al, stated a new finding that the thermal capacity

Section: Doping By Group Ia and Iia Elementsmentioning

confidence: 99%