Dual Interstitials Doping to Advance PbSe Thermoelectric at Wide Temperatures
Yu Xiao,
Liqing Xu,
Xiaoying Wang
et al.
Abstract:Interstitial doping has been widely verified in optimizing thermoelectric performance due to its carrier and phonon decoupling effect. To maximize the role of interstitial, this work develops a novel strategy of Pb and Cu dual interstitials doping in n-type Pb1.02Se-0.2%Cu, and a considerably improved average ZT value of 1.01 at 300–773 K can be achieved, which obviously outperforms previous single interstitial doped PbSe systems. Its superior thermoelectric performance mainly originates from optimally tuned c… Show more
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