Figure 1: Pathway and progress for high ZT in TE materials. | Nature Communications

Figure 1: Pathway and progress for high ZT in TE materials.

From: Thermoelectric materials by using two-dimensional materials with negative correlation between electrical and thermal conductivity

Figure 1

Conventional bulk materials have values from 0.01 to around 1, by using nanostructures, values between 0.1 to 2 have been reported for SnSe (ZT300 K 0.12; ref. 4), quantum nanodot AgPbmSbTe2+m alloys (ZT800 K 2.2; ref. 5), Bi2Te3/Sb2Te3 superlattices (ZT300 K 2.4; ref. 8) and Si nanowires (ZT200 K 1; ref. 15). We present negatively correlated materials, which offer another method for increase of ZT. The solid blue arrow indicates previous progress, while the dotted red arrow is our proposed approach for further increased ZT.

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