Regulating Te Vacancies through Dopant Balancing via Excess Ag Enables Rebounding Power Factor and High Thermoelectric Performance in p‐Type PbTe (Adv. Sci. 20/2021)

Defect Engineering In article number 2100895, Yeon Sik Jung, Min‐Wook Oh, and co‐workers demonstrate the underlying defect chemistry on the rebounding power factor of an Na and Ag co‐doped PbTe. Excess Ag doping is proven to be effective to be the Te vacancy scavenger by forming interstitial Ag clus...

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Published in:Advanced science 2021-10, Vol.8 (20), p.n/a
Main Authors: Jang, Hanhwi, Park, Jong Ho, Lee, Ho Seong, Ryu, Byungki, Park, Su‐Dong, Ju, Hyeon‐Ah, Yang, Sang‐Hyeok, Kim, Young‐Min, Nam, Woo Hyun, Wang, Heng, Male, James, Snyder, Gerald Jeffrey, Kim, Minjoon, Jung, Yeon Sik, Oh, Min‐Wook
Format: Article
Language:English
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Summary:Defect Engineering In article number 2100895, Yeon Sik Jung, Min‐Wook Oh, and co‐workers demonstrate the underlying defect chemistry on the rebounding power factor of an Na and Ag co‐doped PbTe. Excess Ag doping is proven to be effective to be the Te vacancy scavenger by forming interstitial Ag clusters, which is confirmed by advanced STEM and in situ characterizations.
ISSN:2198-3844
2198-3844
DOI:10.1002/advs.202170130