Table 1 The heat capacity (C) by theoretical calculation, electrical thermal conductivity (κe), lattice thermal conductivity (κp), electrical conductivity (σ), temperature coefficient of resistance (TCR) of NW specimens and its bulk counterpart at 300 K.

From: In-situ Observation of Size and Irradiation Effects on Thermoelectric Properties of Bi-Sb-Te Nanowire in FIB Trimming

Diameter (nm)

Bulk

750

490

285

Chemical composition

Bi0.8Sb1.2Te2.9

Bi0.8Sb1.2Te2.9

Bi0.5Sb1.2Te2.6 + 15 at.% Ga

Bi0.5Sb1.2Te1.6 + 33 at.% Ga

C (J/g-K)

0.16

0.16

0.15

0.20

κe (W/m-K)

0.77

0.42

0.47

0.12

κp (W/m-K)

1.45

0.3

0.22

0.06

σ (S/μm)

0.106

0.078

0.086

0.022

TCR (K−1)

5.2 × 10−3

3.4 × 10−3

2.7 × 10−3

0.7 × 10−3

  1. Note: The chemical composition of the bulk is nominal, whereas the compositions of NWs are obtained from SEM-EDX.
Back to article page