TY  - JOUR
AU  - Dreßler, Christian
AU  - Löhnert, Romy
AU  - Gonzalez, Jesus
AU  - Guillon, Olivier
AU  - Töpfer, Jörg
AU  - Teichert, Steffen
TI  - Effect of Carbon Nanotubes on Thermoelectric Properties in Zn$_{0.98}$Al$_{0.02}$O
JO  - Journal of electronic materials
VL  - 45
IS  - 3
SN  - 1543-186X
CY  - Warrendale, Pa
PB  - TMS
M1  - FZJ-2016-00412
SP  - 1459-1463
PY  - 2016
AB  - Thermoelectric oxides can provide the advantage of high-temperature stability in oxygen-containing atmospheres. It is known that the incorporation of multiwalled carbon nanotubes (mw-CNT) can change the thermoelectric as well as the structural properties of oxides. Here, we report the influence of mw-CNT on the thermoelectric properties of Al-doped ZnO (AZO). The preparation of the mw-CNT-added AZO was done using an ultrasonic mixing of the starting materials followed by a spark plasma sintering process under vacuum. The Seebeck coefficient S, thermal conductivity λ and electrical conductivity σ were determined in the temperature range between 300 K and 900 K. It was observed that the thermal conductivity is significantly reduced by the incorporation of the mw-CNT. At the same time, the electrical conductivity is increased by a factor of 21 from 8700 S/m to 190,000 S/m. The Power factor PF=S2σ indicates that the addition of mw-CNT improves the thermoelectric properties of Al doped ZnO in comparison to the reference sample prepared with same process but without mw-CNT
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000371163400038
DO  - DOI:10.1007/s11664-015-4070-4
UR  - https://juser.fz-juelich.de/record/280647
ER  -