Lei Cao , Lin Liu , Kaiyi Luo , Pingping Qian , Haowen Chen , Yixiao Deng , Lei Yang , Xiaoyong Wu , Jun Tang
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引用次数: 0
Abstract
Skutterudites (SKDs) are promising thermoelectric (TE) materials due to their cost-effectiveness and favorable electrical properties. However, their high thermal conductivity limits thermoelectric conversion efficiency. Herein, Y2O3 nanoparticles (NPs)-decorated n-type Yb0.3Co4Sb12 were prepared by spark plasma sintering (SPS). The heterointerfaces created by Y2O3 nanoparticles enhance charge carrier localization through O-Sb hybridization and O-Co bonding, which increases the Seebeck coefficient. Additionally, heterointerfaces scatter phonons, reducing thermal conductivity. Consequently, a figure of merit (ZT) value of ∼1.48 at 773 K and an average ZTave of ∼1.0 (293–823 K) were achieved in this work.
期刊介绍：
Chemical Physics Letters has an open access mirror journal, Chemical Physics Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review.
Chemical Physics Letters publishes brief reports on molecules, interfaces, condensed phases, nanomaterials and nanostructures, polymers, biomolecular systems, and energy conversion and storage.
Criteria for publication are quality, urgency and impact. Further, experimental results reported in the journal have direct relevance for theory, and theoretical developments or non-routine computations relate directly to experiment. Manuscripts must satisfy these criteria and should not be minor extensions of previous work.
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