Dispersion-Stable Carboxymethyl Cellulose/Single-Walled Carbon Nanotube Composite for Water-Processed Organic Thermoelectrics

Materials, Journal Year: 2025, Volume and Issue: 18(2), P. 337 - 337

Published: Jan. 13, 2025

Carbon nanotubes (CNTs) have drawn great attention as promising candidates for realizing next-generation printed thermoelectrics (TEs). However, the dispersion instability and resulting poor printability of CNTs been major issues their practical processing device applications. In this work, we investigated TE characteristics water-processable carboxymethyl cellulose (CMC) single-walled CNT (SWCNT) composite. The microscopic analyses indicated that CMC-incorporated SWCNT dispersions produced uniform smooth films, capable ensuring reliable performance. composite films provided a low temperature power factor 73 μW m−1 K−2 with high electrical conductivity ≈1600 S cm−1 Seebeck coefficient ≈21 µV K−1. Moreover, possessed thermal ≈25 W K−1, significantly lower than pure SWCNTs, maximum figure merit 1.54 × 10−3 at 353.15 K. Finally, successfully demonstrated water-processed organic TEGs using CMC/SWCNT p-type component. This work could offer valuable insights to support development printable organic-based materials devices.

Language: Английский

Multi-crosslinked gelatin-based composite hydrogel featuring high thermoelectric performance and excellent flame retardancy for intelligent fire-warning system

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 282, P. 136881 - 136881

Published: Oct. 30, 2024

Language: Английский