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URN to cite this document: urn:nbn:de:bvb:703-epub-9128-6
Title data
Goel, Mahima ; Hochgesang, Adrian ; Bhui, Animesh ; Biswas, Kanishka ; Thelakkat, Mukundan:
Highly Efficient and Flexible Thin Film Thermoelectric Materials from Blends of PEDOT:PSS and AgSb₀.₉₄Cd₀.₀₆Te₂.
In: Advanced Electronic Materials.
Vol. 12
(2026)
Issue 2
.
- 2500118.
ISSN 2199-160X
DOI der Verlagsversion: https://doi.org/10.1002/aelm.202500118
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Abstract
Mechanically stable and flexible composite TE thin films based on PEDOT:PSS and AgSb0.94Cd0.06Te2 blend by hot pressing on porous PVDF substrate are fabricated. A considerable enhancement of S and σ is observed in the regime of 60–97.5 wt.% of AgSb0.94Cd0.06Te2. High Seebeck coefficients of up to 204.9 µV K−1 and a high-power factor of 53.45 µW m−1 K−2 are obtained for 97.5 wt.% of AgSb0.94Cd0.06Te2 content. However, there is a decrease in electrical conductivity on bending or storage under air. No loss of mechanical integrity can be detected in the SEM of bent films. Ultraviolet photoelectron spectroscopy reveals that overall energy levels of composite systems are either similar to PEDOT:PSS (φ = 5.00 ± 0.16 eV, IP = 5.12 ± 0.02 eV) or AgSb0.94Cd0.06Te2 (φ = 4.43 ± 0.11 eV, IP = 4.57 ± 0.01 eV), depending on the blend ratio. Transport mechanisms are studied using Mott–Schottky measurements, and by calculating the weighted charge carrier mobility, which increases continuously up to 5.5 cm2 V−1 s−1 for the highest inorganic content. It is demonstrated that a high inorganic content TE composite results in a flexible TE film achieving 80% of the Seebeck value of the pure inorganic component.
Further data
| Item Type: | Article in a journal |
|---|---|
| Keywords: | Cd doped AgSbTe2; composite thermoelectric materials; poly(3,4-ethylenedioxythiophene) polystyrene sulfonate; thin film flexible thermoelectrics |
| DDC Subjects: | 500 Science > 540 Chemistry |
| Institutions of the University: | Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Professor Applied Functional Polymers > Professor Applied Functional Polymers - Univ.-Prof. Dr. Mukundan Thelakkat Faculties Faculties > Faculty of Biology, Chemistry and Earth Sciences Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Professor Applied Functional Polymers |
| Language: | English |
| Originates at UBT: | Yes |
| URN: | urn:nbn:de:bvb:703-epub-9128-6 |
| Date Deposited: | 16 Apr 2026 11:29 |
| Last Modified: | 16 Apr 2026 11:30 |
| URI: | https://epub.uni-bayreuth.de/id/eprint/9128 |
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