Microstructurally Tailored Thin β-Ag2 Se Films toward Commercial Flexible Thermoelectrics

Microstructurally Tailored Thin β-Ag2 Se Films toward Commercial Flexible Thermoelectrics

© 2022 Wiley-VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 34(2022), 7 vom: 26. Feb., Seite e2104786
1. Verfasser: Lei, Yan (VerfasserIn)
Weitere Verfasser: Qi, Ruijuan, Chen, Miaoying, Chen, Hong, Xing, Chengcheng, Sui, Fengrui, Gu, Longyan, He, Weiwei, Zhang, Yange, Baba, Takahiro, Baba, Tetsuya, Lin, Hong, Mori, Takao, Koumoto, Kunihito, Lin, Yuan, Zheng, Zhi
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article Ag2Se aqueous selenization reaction flexible thermoelectric power generators maximum output power density thin films
Beschreibung
Zusammenfassung:© 2022 Wiley-VCH GmbH.
Aiming to overcome both the structural and commercial limitations of flexible thermoelectric power generators, an efficient room-temperature aqueous selenization reaction that can be completed in air within less than 1 min, to directly fabricate thin β-Ag2 Se films consisting of perfectly crystalline and large columnar grains with both in-plane randomness and out-of-plane [201] preferred orientation, is designed. A high power factor (PF) of 2590 ± 414 µW m-1 K-2 and a figure-of-merit (zT) of 1.2 ± 0.42 are obtained from a sample with a thickness of ≈1 µm. The maximum output power density of the best 4-leg thermoelectric generator sample reach 27.6 ± 1.95 and 124 ± 8.78 W m-2 at room temperature with 30 and 60 K temperature differences, respectively, which may be useful in future flexible thermoelectric devices
Beschreibung:Date Revised 17.02.2022
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:1521-4095
DOI:10.1002/adma.202104786