TY  - JOUR
AU  - Suen, Chun Hung
AU  - Zhang, Long
AU  - Yang, Kunya
AU  - He, M.Q.
AU  - Chai, Y.S.
AU  - Zhou, K.
AU  - Wang, Huichao
AU  - Zhou, X.Y.
AU  - Dai, Ji-Yan
PY  - 2022
TI  - High thermoelectric performance of ZrTe2/SrTiO3 heterostructure
JO  - Journal of Materiomics
SN  - 2352-8478
SP  - 570
EP  - 576
VL  - 8
IS  - 3
AB  - Achieving high thermoelectric performance in thin film heterostructures is essential for integrated and miniatured thermoelectric device applications. In this work, we demonstrate a mechanism and device performance of enhanced thermoelectric performance induced by interfacial effect in a transition metal dichalcogenides-SrTiO3 (STO) heterostructure. Owing to the formed conductive interface and elevated conductivity, the ZrTe2/STO heterostructure presents large thermoelectric power factor of 3.7 × 105 μWcm−1K−2 at 10 K. Formation of quasi-two-dimensional conductance at the interface is attributed for the large Seebeck coefficient and high electrical conductivity, leading to high thermoelectric performance which is demonstrated by a prototype device attaining 3 K cooling with 100 mA current input to this heterostructure. This superior thermoelectric property makes this heterostructure a promising candidate for future thermoelectric device.
UR  - https://doi.org/10.1016/j.jmat.2021.12.004
DO  - 10.1016/j.jmat.2021.12.004