POS6-0565
Large-Area Carbon Nanotube Sheets with Controlled Doping for Flexible Thermoelectric Generators
Topic
S6. Emerging Polymer and Hybrid Materials for Advanced Energy Storage and Conversion
When and Where
Sep 29, 2026
08:30 - 09:30
Room 301 (Grand Ballroom)
Session Chairs
Hae Jung SON
Boseok KANG
Presenter(s)
KANGHYUN JO (Chungnam National University)
Co-Author(s)
Abstract
Flexible thermoelectric generators (f-TEGs), which harvest body heat to power wearable electronic devices, are gaining significant attention as a promising self-powered technology. For the stable operation of f-TEGs, excellent mechanical durability, flexibility, and high thermoelectric (TE) performance are essential. Carbon nanotubes (CNTs) are promising materials for f-TEG applications due to their outstanding flexibility and high electrical conductivity. However, their inherently poor dispersibility in solvents has limited the formation of uniform, large-area coatings. In this study, we successfully demonstrated an f-TEG via a simple process utilizing uniform, large-area sheets fabricated from oxidation-treated CNTs with enhanced water dispersibility. In particular, we confirmed that doping control via drop-casting is highly effective for precisely tuning p-type and n-type TE performance. This work provides a practical strategy for large-area processing and opens new avenues for future f-TEG development.
