Theory of photoinduced charge transfer in weakly coupled donor-acceptor conjugated polymers: application to an MEH-PPV:CN-PPV pair
M. W. Wu, E. M. Conwell
Abstract
In a pair of coupled donor-acceptor conjugated polymer chains, it is possible for an exciton photoexcited on either polymer to decay into a hole in the donor polymer's valence band and an electron in the conduction band of the acceptor polymer. We calculate the corresponding exciton decay rate and its dependence on inter-polymer distance. For a pair of derivatives of poly(phenylene vinylene), PPV, specifically poly[2-methoxy, 5-(2-ethyl-hexyloxy)-1, 4 PPV], MEH-PPV, and poly(2,5-hexyloxy p-phenylene cyanovinylene), CN-PPV, at a separation of 6 Åthe characteristic decay time is 2.2 ps, whereas at 4 Åit is 50 fs.
Create a lesson
Related papers
Contact-mediated asymmetric delay and rate memory in snapping beam pairs
Gavin Linton, Shima Mahmoudirad, Nidhi Pashine et al.
Time-temperature-composition equivalence of the viscoelastic behavior through the glass transition of digitally mixed 3D-printed polymers
Beijun Shen, Sanat K. Kumar, Mary C. Boyce
A Minimal Theoretical Model for Morphodynamic Selection in Soft Matter Systems
Weihua Mu, Da Wang
A Higher-Order Stroh Framework for Weakly Nonlinear Post-Bifurcation Analysis
Shiyuan Deng, Han Ye, Yafei Wang et al.
Active remodeling rescues a microswimmer from geometric trapping
Ayushi Bhatt, Nico Schramma, Jasper van der Gucht et al.
Surface Granular flows: Two Related Examples
Devang V. Khakhar, Ashish V. Orpe