P-Type-to-N-Type Transition in Hybrid Ag_{x}Te/PEDOT:PSS Thermoelectric Materials via Stoichiometric Control during Solution-Based Synthesis

Katherine A. Mazzio; Danny Kojda; Rodrigo Rubio-Govea; Jens Niederhausen; Britta Ryll; Monika Raja-Thulasimani; Klaus Habicht; Simone Raoux

doi:10.1021/acsaem.0c01774

journal article·2020-11-23Open access

P-Type-to-N-Type Transition in Hybrid Ag_xTe/PEDOT:PSS Thermoelectric Materials via Stoichiometric Control during Solution-Based Synthesis

Katherine A. Mazzio, Danny Kojda, Rodrigo Rubio-Govea, Jens Niederhausen, Britta Ryll, Monika Raja-Thulasimani, Klaus Habicht, Simone Raoux

ACS Applied Energy Materials· Volume 3· Issue 11

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Abstract

This work demonstrates the production of high-performing p- type and n-type hybrid AgxTe/poly(3,4-ethylenedioxythiopene):polystyrene sulfonic acid (PE-DOT:PSS) thermoelectric materials from the same Te/PEDOT:PSS parent structure during aqueous-based synthesis. All samples were solution-processed and analyzed in thin- film architectures. We were able to demonstrate a power factor of 44 mu W m(-1) K-2 for our highest-performing n-type material. In addition, we were also able to realize a 68% improvement in the power factor of our p-type compositions relative to the parent structure through manipulation of the inorganic nanostructure composition. We demonstrate control over the thermoelectric properties by varying the stoichiometry of AgxTe nanoparticles in AgxTe/PEDOT:PSS hybrid materials via a topotactic chemical transformation process at room temperature. This process offers a simple, low-temperature, and cost-effective route toward the production of both efficient n-type and p-type hybrid thermoelectric materials.

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Research context

Nanomaterials

OpenAlex topics: Advanced Thermoelectric Materials and Devices · Quantum Dots Synthesis And Properties · Perovskite Materials and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Institute for Nanospectroscopy, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Str. 15, 12489 Berlin, Germany

Energy Materials In-Situ Laboratory Berlin (EMIL), Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Str. 15, 12489 Berlin, Germany

Department Methods for Characterization of Transport Phenomena in Energy Materials, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109 Berlin, Germany

Institut für Chemie, Humboldt Universität zu Berlin, Brook-Taylor-Str. 5, 12489 Berlin, Germany

Institut für Physik, Humboldt Universität zu Berlin, Newton-Str. 15, 12489 Berlin, Germany

Institut für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam, Germany

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