A high temperature thermoelectric test setup for the NORECS ProboStat™ sample holder cell has been designed, constructed, and tested. It holds four thermoelectric legs of up to 5 × 5 mm2 area each and flexible height, allows various interconnects to be tested, and utilizes the spring-load system of the ProboStat for fixation and contact. A custom stainless steel support tube flushed with water provides the cold sink, enabling large temperature gradients. Thermocouples and electrodes as well as the gas supply and outer tube use standard ProboStat base unit feedthroughs and dimensions. The setup allows for testing in controlled atmospheres with the hot side temperature of up to around 1000 °C and a temperature gradient of up to 600 °C. We demonstrate the test setup on a four-leg Li–NiO/Al–ZnO module with gold interconnects. The comparison between the predicted performance based on individual material parameters and the experimentally obtained module performance underlines the necessity for testing materials in combination, including interconnects. The four-leg setup allows versatile match-screening, performance evaluation, and long-term stability studies of thermoelectric materials in combination with hot and cold side interconnects under realistic operational conditions.

1.
M.
Schrade
 et al., “
Versatile apparatus for thermoelectric characterization of oxides at high temperatures
,”
Rev. Sci. Instrum.
85
(
10
),
103906
(
2014
).
2.
J.
Boor
 et al., “
High-temperature measurement of Seebeck coefficient and electrical conductivity
,”
J. Electron. Mater.
42
,
1711
(
2013
).
3.
J.
Martin
,
T.
Tritt
, and
C.
Uher
, “
High temperature Seebeck coefficient metrology
,”
J. Appl. Phys.
108
(
12
),
121101
(
2010
).
4.
P. H. M.
Böttger
 et al., “
High temperature Seebeck coefficient and resistance measurement system for thermoelectric materials in the thin disk geometry
,”
Rev. Sci. Instrum.
83
,
025101
(
2012
).
5.
S.
Iwanaga
 et al., “
A high temperature apparatus for measurement of the Seebeck coefficient
,”
Rev. Sci. Instrum.
82
,
063905
(
2011
).
6.
A. T.
Burkov
 et al., “
Experimental set-up for thermopower and resistivity measurements at 100–1300 K
,”
Meas. Sci. Technol.
12
,
264
(
2001
).
7.
C.
Byl
,
D.
Bérardan
, and
N.
Dragoe
, “
Experimental setup for measurements of transport properties at high temperature and under controlled atmosphere
,”
Meas. Sci. Technol.
23
,
035603
(
2012
).
8.
T.
Kajikawa
, in
Proceedings of 20th International Conference on Thermoelectrics in ICT, People’s Republic of China, Beijing
(
ICT
,
2001
).
9.
J. D.
Koenig
 et al., in
Proceedings of 2009 MRS Fall Meeting in European Materials Research Society Fall Meeting
(
MRS
,
2009
).
10.
T.
Tsubota
 et al., “
Thermoelectric properties of Al-doped ZnO as a promising oxide material for high-temperature thermoelectric conversion
,”
J. Mater. Chem.
7
(
1
),
85
90
(
1997
).
11.
S.
Yang
 et al., “
Microstructure and electrical properties of AZO/graphene nanosheets fabricated by spark plasma sintering
,”
Materials
9
(
8
),
638
(
2016
).
12.
J.
Mayandi
 et al., “
Al-doped ZnO prepared by co-precipitation method and its thermoelectric characteristics
,”
Mater. Lett.
288
,
129352
(
2021
).
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