The thermal transport in metallic thin films can be reduced by the electron scattering and there are very little available knowledge that can be used to explain the mechanism. In this work, we characterized the thermal and electron transport of 3.2 nm thin gold films coated on alginate fiber by the transient electrothermal (TET) technique. The results reveal that the thermal and electrical conductivities are reduced significantly from the respective values of bulk material by 76.2% and 93.9%. At the same time, the Lorenz number is calculated as 8.66 × 10−8 W Ω K−2 and it is almost three times increased from the value of bulk material. The intrinsic thermal diffusivity of alginate fiber is 3.25 × 10−7 m2 s−1 and the thermal conductivity is 0.51 W m−1 K−1.

References

References
1.
Qin
,
Y. M.
,
2012
, “
The Properties and Applications of Alginate Fibers
,”
Synth. Fiber China
,
41
(
4
), pp.
19
22
.
2.
Qin
,
Y. M.
,
Zhou
,
X. X.
, and
Liu
,
Z. N.
,
2013
, “
Zinc Alginate Fibers
,”
Synth. Fiber China
,
42
(
4
), pp.
26
28
.
3.
Lian
,
Y.
,
Wu
,
J. Y.
,
Zhou
,
D. P.
,
Wang
,
H. M.
,
Huang
,
D. W.
, and
Huang
,
Y. H.
,
2011
, “
Preparation and Properties of Alginate Fibre
,”
Adv. Mater. Res.
,
335
(
336
), pp.
419
422
.
4.
Zhang
,
C. J.
,
Zhu
,
P.
, and
Wang
,
H. F.
,
2009
, “
Research on the Properties of Alginate Fiber With High Strength
,”
Text. Aux.
,
26
(
1
), pp.
15
18
.
5.
Zhang
,
C. J.
,
Zhu
,
P.
, and
Wang
,
H. F.
,
2008
, “
Research of Preparation, Structure and Properties of Alginate Fiber With High Strength
,”
J. Tianjin Polytech. Univ.
,
27
(
5
), pp.
23
27
.
6.
Kobayashi
,
Y.
,
Matsuo
,
R.
, and
Kawakatsú
,
H.
,
1986
, “
Manufacture and Physical Properties of Alginate Fiber Papers as an Analysis Model of Cellulosic Fiber Papers
,”
J. Appl. Polym. Sci.
,
31
(
6
), pp.
1735
1747
.
7.
Zheng
,
L. M.
,
Zhu
,
P.
, and
Zhang
,
C. J.
,
2009
, “
The Structure and Properties of Alginate Fiber
,”
Prog. Text. Sci. Technol.
,
13
(
4
), pp.
1
8
.
8.
Zhan
,
Y. Z.
,
Zhu
,
P.
,
Zhang
,
J. B.
, and
Guo
,
X. Q.
,
2006
, “
The Properties and Application of Alginate Fiber
,”
Text. Aux.
,
23
(
6
), pp.
9
12
.
9.
Lin
,
H.
,
Xu
,
S.
,
Wang
,
X. W.
, and
Mei
,
N.
,
2013
, “
Thermal and Electrical Conduction in Ultrathin Metallic Films: 7 Nm Down to Sub-Nanometer Thickness
,”
Small
,
9
(
15
), pp.
2585
2594
.
10.
Zhang
,
Q. G.
,
Cao
,
B. Y.
,
Zhang
,
X.
,
Fujii
,
M.
, and
Takahashi
,
K.
,
2006
, “
Size Effects on the Thermal Conductivity of Polycrystalline Platinum Nanofilms
,”
J. Phys. Condens. Matter
,
18
(
34
), pp.
7937
7950
.
11.
Beloborodov
,
I. S.
,
Lopatin
,
A. V.
,
Hekking
,
F. W. J.
,
Fazio
,
R.
, and
Vinokur
,
V. M.
,
2005
, “
Thermal Transport in Granular Metals
,”
EPL
,
69
(
3
), pp.
435
441
.
12.
Stojanovic
,
N.
,
Maithripala
,
D. H. S.
,
Berg
,
J. M.
, and
Holtz
,
M.
,
2010
, “
Thermal Conductivity in Metallic Nanostructures at High Temperature: Electrons, Phonons, and the Wiedemann-Franz Law
,”
Phys. Rev. B Condens. Matter
,
82
(
7
), p.
075418
.
13.
Tripathi
,
V.
, and
Loh
,
Y. L.
,
2006
, “
Optical Conductivity of a Granular Metal at Not Very Low Temperatures
,”
Phys. Rev. B
,
73
(
19
), p.
195113
.
14.
Zhang
,
X.
,
Xie
,
H.
,
Fujii
,
M.
,
Ago
,
H.
,
Takahashi
,
K.
, and
Ikuta
,
T.
,
2005
, “
Thermal and Electrical Conductivity of a Suspended Platinum Nanofilm
,”
Appl. Phys. Lett.
,
86
(
17
), p.
171912
.
15.
Fuchs
,
K.
,
1938
, “
The Conductivity of Thin Metallic Films According to the Electron Theory of Metals
,”
Math. Proc. Cambridge Philos. Soc.
,
34
(
1
), pp.
100
108
.
16.
Sondheimer
,
E. H.
,
1952
, “
The Mean Free Path of Electrons in Metals
,”
Adv. Phys.
,
50
(
6
), pp.
499
537
.
17.
Soffer
,
S. B.
,
1967
, “
Statistical Model for Size Effect in Electrical Conduction
,”
J. Appl. Phys.
,
38
(
4
), pp.
1710
1715
.
18.
Namba
,
Y.
,
1970
, “
Resistivity and Temperature Coefficient of Thin Metal Films With Rough Surface
,”
Jpn. J. Appl. Phys.
,
9
(
11
), pp.
1326
1329
.
19.
Gurrum
,
S. R.
,
Joshi
,
Y. K.
,
King
,
W. P.
, and
Ramakrishna
,
K.
,
2004
, “
Numerical Simulation of Electron Transport Through Constriction in a Metallic Thin Film
,”
IEEE Electron Device Lett.
,
25
(
10
), pp.
696
698
.
20.
Gurrum
,
S. P.
,
Joshi
,
Y. K.
,
King
,
W. P.
,
Ramakrishna
,
K.
, and
Gall
,
M.
,
2008
, “
A Compact Approach to On-Chip Interconnect Heat Conduction Modeling Using the Finite Element Method
,”
ASME J. Electron. Packag.
,
130
(
3
), p. 031001.
21.
Wang
,
H. D.
,
Liu
,
J. H.
,
Zhang
,
X.
,
Guo
,
Z. Y.
, and
Takahashi
,
K.
,
2011
, “
Experimental Study on the Influences of Grain Boundary Scattering on the Charge and Heat Transport in Gold and Platinum Nanofilms
,”
Heat Mass Transfer
,
47
(
8
), pp.
893
898
.
22.
Zhang
,
Q. G.
,
Cao
,
B. Y.
,
Zhang
,
X.
,
Fujii
,
M.
, and
Takahashi
,
K.
,
2006
, “
Influence of Grain Boundary Scattering on the Electrical and Thermal Conductivities of Polycrystalline Gold Nanofilms
,”
Phys. Rev. B Condens. Matter
,
74
(
13
), p.
134109
.
23.
Yue
,
Y.
,
Zhang
,
J. C.
,
Tang
,
X.
,
Xu
,
S.
, and
Wang
,
X. W.
,
2015
, “
Thermal Transport Across Atomic-Layer Material Interfaces
,”
Nanotechnol. Rev.
,
4
(
6
), pp.
533
555
.
24.
Lin
,
H.
,
Xu
,
S.
,
Li
,
C.
,
Dong
,
H.
, and
Wang
,
X. X.
,
2013
, “
Thermal and Electrical Conduction in 6.4 nm Thin Gold Films
,”
Nanoscale
,
5
(
11
), pp.
4652
4656
.
25.
Yu
,
X.
,
Mou
,
H.
, and
Zhang
,
Y. Y.
,
2013
, “
Research on Alginate Fiber and Its Application to Textiles
,”
Adv. Mater. Res.
,
821–822
, pp.
68
71
.
26.
Guo
,
J. Q.
,
Wang
,
X.
, and
Wang
,
T.
,
2007
, “
Thermal Characterization of Microscale Conductive and Nonconductive Wires Using Transient Electrothermal Technique
,”
J. Appl. Phys.
,
101
(
6
), p.
063537
.
27.
Feng
,
X.
, and
Wang
,
X.
,
2011
, “
Thermophysical Properties of Free-Standing Micrometer-Thick Poly (3-Hexylthiophene) Films
,”
Thin Solid Films
,
519
(
16
), pp.
5700
5705
.
28.
Lin
,
H.
,
Xu
,
S.
,
Zhang
,
Y. Q.
, and
Wang
,
X. W.
,
2014
, “
Electron Transport and Bulk-Like Behavior of Wiedemann-Franz Law for Sub-7 Nm-Thin Iridium Films on Silkworm Silk
,”
ACS Appl. Mater. Interfaces
,
6
(
14
), pp.
11341
11347
.
29.
Lin
,
H.
,
Xu
,
S.
,
Wang
,
X. W.
, and
Mei
,
N.
,
2013
, “
Significantly Reduced Thermal Diffusivity of Free-Standing Two-Layer Graphene in Graphene Foam
,”
Nanotechnology
,
24
(
41
), p.
415706
.
30.
Beck
,
J. V.
,
1992
,
Heat Conduction Using Green's Functions
,
Hemisphere
,
New York
.
31.
Liu
,
G.
,
Xu
,
S.
,
Cao
,
T. T.
,
Lin
,
H.
,
Tang
,
X.
, and
Zhang
,
Y. Q.
,
2014
, “
Thermally Induced Increase in Energy Transport Capacity of Silkworm Silks
,”
Biopolymers
,
101
(
10
), pp.
1029
1037
.
32.
Zhang
,
J. C.
,
Wang
,
Y. C.
, and
Wang
,
X. W.
,
2013
, “
Rough Contact Is Not Always Bad for Interfacial Energy Coupling
,”
Nanoscale
,
5
(
23
), pp.
11598
11603
.
33.
Feng
,
X. H.
,
Huang
,
X. P.
, and
Wang
,
X. W.
,
2012
, “
Thermal Conductivity and Secondary Porosity of Single Anatase TiO2 Nanowire
,”
Nanotechnology
,
23
(
18
), p.
185701
.
34.
Ma
,
W. G.
,
Wang
,
H. D.
, and
Cao
,
B. Y.
,
2009
, “
Experimental Study on Electrical and Thermal Conductivitives of Gold Thin Films
,”
J. Eng. Therm. Phys.
,
30
(
11
), pp.
1907
1909
.
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