Nanoscale Decoupling of Carrier-Phonon Transport in Carbon Nanotube-Halide Perovskite Heterostructures.

ABSTRACT: In conventional semiconductors, electrical and thermal conductivity are typically coupled, posing a challenge in optimizing both simultaneously. Overcoming this inherent trade-off enables strategies for advancing electronic applications. Herein, a strategy is demonstrated to decouple electrical and thermal conductivity trade-off by creating heterostructures of highly conductive single-walled carbon nanotubes (SWCNTs) coated with low conductivity hybrid perovskites. Coating SWCNTs with methylammonium lead iodide perovskite results in an enhancement in electrical conductivity (408-1266 S cm^-1) due to p-type doping followed by a threefold decrease of the in-plane thermal conductivity (3.3-1 W m^-1 K^-1), compared to pristine SWCNTs. Molecular dynamics simulation

SUBMITTER: Haque MA 

PROVIDER: S-EPMC12631927 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature