journal article·2014-05Open access

Hot Carrier Filtering in Solution Processed Heterostructures: A Paradigm for Improving Thermoelectric Efficiency

Yichi Zhang, Je‐Hyeong Bahk, Joun Lee, Christina S. Birkel, Matthew L. Snedaker, Deyu Liu, Hongmei Zeng, Martin Moskovits, Ali Shakouri, Galen D. Stucky

Advanced Materials· Volume 26· Issue 17

Abstract

An approach based on a solution-based synthesis that produces a thermally stable Ag/oxide/S₂ Te₃ -Te metal-semiconductor heterostructure is described. With this approach, a figure of merit of zT = 1.0 at 460 K is achieved, a record for a heterostructured material made using wet chemistry. Combining experiments and theory shows that the large increase in the material's Seebeck coefficient results from hot carrier filtering.
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Research context

OpenAlex topics: Advanced Thermoelectric Materials and Devices · Thermal Radiation and Cooling Technologies · Chalcogenide Semiconductor Thin Films

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

Affiliations

Department of Chemistry and Biochemistry University of California‐Santa Barbara Santa Barbara CA 93106 U.S.

Birck Nanotechnology Center, Purdue University West Lafayette IN 47907 U.S.

Materials Research Laboratory, University of California‐Santa Barbara Santa Barbara CA 93106–5121 U.S.

Department of Electrical Engineering University of California‐Santa Cruz Santa Cruz CA 95064 U.S.

Materials Department University of California‐Santa Barbara Santa Barbara California 93106 U.S.

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