title: IR-extended photoluminescence mapping of single-wall and double-wall carbon nanotubes.
abstract: A simple and efficient technique is described for measuring photoluminescence (PL) maps of carbon nanotubes (NTs) in the extended IR range (1-2.3 mum). It consists of preparing an NT/surfactant/gelatin film and measuring PL spectra using a combination of a tunable Ti-sapphire laser excitation and FTIR detection. This procedure has been applied to a wide range of single- and double-wall NTs unveiling chirality and diameter distributions that have so far been very difficult to measure. The problems associated with deducing these distributions are discussed by comparing absorption and PL mapping data for NT samples prepared under different conditions.
authors.affiliation: Nanotechnology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, 305-8565, Japan.
authors.forename: Konstantin
authors.initials: K
authors.lastname: Iakoubovskii
authors.forename: Nobutsugu
authors.initials: N
authors.lastname: Minami
authors.forename: Said
authors.initials: S
authors.lastname: Kazaoui
authors.forename: Taro
authors.initials: T
authors.lastname: Ueno
authors.forename: Yasumitsu
authors.initials: Y
authors.lastname: Miyata
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Yanagi
authors.forename: Hiromichi
authors.initials: H
authors.lastname: Kataura
authors.forename: Satoshi
authors.initials: S
authors.lastname: Ohshima
authors.forename: Takeshi
authors.initials: T
authors.lastname: Saito