Solvent basicity promotes the hydride-mediated electron transfer doping of carbon nanotubes

Abstract

This study investigates the hydride-mediated electron transfer doping of single-walled carbon nanotubes using absorption spectroscopy and thermoelectric measurements. Specific solvent basicity is found to be important for the efficient n-type doping of carbon nanotubes. This progress is an essential requirement for the future development of electronic and energy devices.

Thickness-dependent thermoelectric power factor of polymer-functionalized semiconducting carbon nanotube thin films

“…In this context, several researchers have recently achieved such a thermoelectric property modulation using field effect and electrochemical transistor techniques [8–10]. We have also demonstrated the amphoteric (both p-type and n-type) chemical doping of SWNTs, achieving ambient stability and precise doping level control [11–16]. …”

Surfactant‐driven Amphoteric Doping of Carbon Nanotubes

“…We consider the thermoelectric properties of CNT films for elucidating their electronics tates at specific doping levels. [27][28][29][30][31][32][33][34][35] These complementary characterizations reveal that ionic and neutral surfactants afford p-typea nd n-type CNTs, respectively.…”

“…Infrared absorption spectroscopy is conducted to investigate the electronic structures. We consider the thermoelectric properties of CNT films for elucidating their electronic states at specific doping levels . These complementary characterizations reveal that ionic and neutral surfactants afford p‐type and n‐type CNTs, respectively.…”

Ionic Dopant‐Encapsulating Single‐Walled Carbon Nanotube Films with Metal‐Like Electrical Conductivity

“…2000 S cm −1 from ca. 500 S cm −1 films . Along with this, recent studies suggested that the encapsulation of dopants into SWCNTs might enhance doping efficiency that afford enhanced conductivity …”

“…500 S cm À 1 films. [12][13][14][15][16][17] Along with this, recent studies suggested that the encapsulation of dopants into SWCNTs might enhance doping efficiency that afford enhanced conductivity. [18,19] Herein we introduce advanced molecular dopants for the encapsulation inside SWCNTs.…”