Intermolecular interaction effects on the ultrafast depolarization of the optical emission from conjugated polymers
Physical Review Letters 98 (2007) 027402 4pp
Terahertz probe of carrier trapping in polymer transistors
Optica Publishing Group (2007) tua2
Photoexcitation dynamics in thin films of insulated molecular wires
Applied Physics Letters 89:23 (2006)
Abstract:
A study is presented on how encapsulation of conjugated polymer chains affects the motion of photoexcitations and the formation of interchain aggregates in solid films. It is shown that threading of a poly(diphenylene vinylene) backbone inside insulating cyclodextrins (rotaxination) and/or complexation of the chains with poly(ethylene oxide) are effective means of preventing the diffusion of excitons to nonradiative defect sites. Ultrafast time-resolved photoluminescence data reveal that excitation transfer between encapsulated chains is still possible and, for the case of rotaxination, is likely to be facilitated through close packing of end groups belonging to adjacent chains. 漏 2006 American Institute of Physics.Charge trapping in polymer transistors probed by terahertz spectroscopy and scanning probe potentiometry
Applied Physics Letters 89 (2006) 112101 pp3
Charge trapping in polymer transistors probed by terahertz spectroscopy and scanning probe potentiometry
(2006)