Single-Crystal SnSe Thermoelectric Fibers via Laser-Induced Directional Crystallization From 1D Fibers to Multidimensional Fabrics

Single-Crystal SnSe Thermoelectric Fibers via Laser-Induced Directional Crystallization : From 1D Fibers to Multidimensional Fabrics

© 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 32(2020), 36 vom: 01. Sept., Seite e2002702
1. Verfasser: Zhang, Jing (VerfasserIn)
Weitere Verfasser: Zhang, Ting, Zhang, Hang, Wang, Zhixun, Li, Chen, Wang, Zhe, Li, Kaiwei, Huang, Xingming, Chen, Ming, Chen, Zhe, Tian, Zhiting, Chen, Haisheng, Zhao, Li-Dong, Wei, Lei
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article flexible fibers high thermoelectric properties laser recrystallization single-crystal SnSe wearable fabrics
Beschreibung
Zusammenfassung:© 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Single-crystal tin selenide (SnSe), a record holder of high-performance thermoelectric materials, enables high-efficient interconversion between heat and electricity for power generation or refrigeration. However, the rigid bulky SnSe cannot satisfy the applications for flexible and wearable devices. Here, a method is demonstrated to achieve ultralong single-crystal SnSe wire with rock-salt structure and high thermoelectric performance with diameters from micro- to nanoscale. This method starts from thermally drawing SnSe into a flexible fiber-like substrate, which is polycrystalline, highly flexible, ultralong, and mechanically stable. Then a CO2 laser is employed to recrystallize the SnSe core to single-crystal over the entire fiber. Both theoretical and experimental studies demonstrate that the single-crystal rock-salt SnSe fibers possess high thermoelectric properties, significantly enhancing the ZT value to 2 at 862 K. This simple and low-cost approach offers a promising path to engage the fiber-shaped single-crystal materials in applications from 1D fiber devices to multidimensional wearable fabrics
Beschreibung:Date Revised 07.12.2020
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:1521-4095
DOI:10.1002/adma.202002702