Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Size dependent thermoelectric properties of silicon nanowires   By using first-principles tight-binding electronic structure calculation and
Boltzmann transport equation, we investigate the size dependence of
thermoelectric properties of silicon nanowires (SiNWs). With cross section area
increasing, the electrical conductivity increases slowly, while the Seebeck
coefficient reduces remarkably. This leads to a quick reduction of cooling
power factor with diameter. Moreover, the figure of merit also decreases with
transverse size. Our results demonstrate that in thermoelectric application, NW
with small diameter is preferred. We also predict that isotopic doping can
increase the value of ZT significantly. With 50% 29Si doping (28Si0.529Si0.5
NW), the ZT can be increased by 31%.

19
The categories of this paper are: eess
27
The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th
29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
2
The categories of this paper are: math
23
The categories of this paper are: solv-int
3
The categories of this paper are: physics
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
1
The categories of this paper are: cs
28
The categories of this paper are: alg-geom