title: Synthesis and properties of quantum dot-polypyrrole nanotube composites for photovoltaic application.
abstract: A novel method for the fabrication of polypyrrole nanotubes (PPyNTs) possessing quantum dots (QDs) was developed for optoelectronic devices. PbSe QDs were effectively attached to the thiolated PPyNT-SH without affecting the dispersion stability of QDs and hence ensuring their homogeneous distribution in the polymer. Transmission electron microscopic images showed a large number of PbSe QDs absorbed in PPyNT-SH. The polymer nanotube composites were also investigated for the application of photovoltaic cells. An open circuit voltage (V(oc)) of 0.45 V and short-circuit photocurrent density (I(sc)) of 2.4 microA cm(-2) were found in P3HT/PPyNT-PbSe polymeric solar cells. Further optimization will be provided by changing various parameters and conditions.
authors.affiliation: Department of Advanced Materials, Hannam University, Daejeon 305-811, Korea.
authors.forename: Jung Sun
authors.initials: JS
authors.lastname: Kim
authors.forename: Won Jin
authors.initials: WJ
authors.lastname: Kim
authors.forename: Namchul
authors.initials: N
authors.lastname: Cho
authors.forename: Shobha
authors.initials: S
authors.lastname: Shukla
authors.forename: Hyeonseok
authors.initials: H
authors.lastname: Yoon
authors.forename: Jyongsik
authors.initials: J
authors.lastname: Jang
authors.forename: Paras N
authors.initials: PN
authors.lastname: Prasad
authors.forename: Tae-Dong
authors.initials: TD
authors.lastname: Kim
authors.forename: Kwang-Sup
authors.initials: KS
authors.lastname: Lee