Simple Salt‐Coordinated n‐Type Nanocarbon Materials Stable in Air
Author(s) -
oguchi Yoshiyuki,
Nakano Motohiro,
Murayama Tomoko,
Hagino Harutoshi,
Hama Shota,
Miyazaki Koji,
Matsubara Ryosuke,
Nakamura Masakazu,
Kawai Tsuyoshi
Publication year - 2016
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201600179
Subject(s) - materials science , carbon nanotube , thermoelectric effect , potassium hydroxide , carbon fibers , reagent , nanotechnology , chemical engineering , sodium hydroxide , thermoelectric materials , doping , alkali metal , salt (chemistry) , inorganic chemistry , composite material , organic chemistry , optoelectronics , chemistry , thermal conductivity , physics , composite number , thermodynamics , engineering
After more than three decades of molecular and carbon‐based electronics, the creation of air‐ and thermally stable n‐type materials remains a challenge in the development of future p/n junction devices such as solar cells and thermoelectric modules. Here a series of ordinary salts are reported such as sodium chloride (NaCl), sodium hydroxide (NaOH), and potassium hydroxide (KOH) with crown ethers as new doping reagents for converting single‐walled carbon nanotubes to stable n‐type materials. Thermoelectric analyses reveal that these new n‐type single‐walled carbon nanotubes display remarkable air stability even at 100 °C for more than 1 month. Their thermoelectric properties with a dimensionless figure‐of‐merit (ZT) of 0.1 make these new n‐type single‐walled carbon nanotubes a most promising candidate for future n‐type carbon‐based thermoelectric materials.