Polaron-pair generation in poly(phenylene vinylenes). Frankevich, E. L., Lymarev, A. A., Sokolik, I., Karasz, F. E., Blumstengel, S., Baughman, R. H., & Hörhold, H. H. Physical Review B, 46(15):9320–9324, 1992.
Paper doi abstract bibtex The effects of weak magnetic fields on the photoconductivity of poly( p -phenylene vinylene) (PPV) and two derivatives; poly(1;4-phenylene-1;2-dimethoxyphenyl vinylene) (DMOP-PPV) and poly(2-phenyl-1;4-phenylene vinylene) (PPPV); were observed within the temperature range 130–350 K. These effects are attributed to the formation of interchain pairs involving a negative polaron and a positive polaron. A polaron pair is formed as a result of interchain electron transfer from a molecular exciton. The lifetime of a pair is estimated to be within the range of 10 -8– 10 -9 s. Thermal dissociation of a polaron pair produces free charge carriers; and recombination of the pair regenerates a singlet or triplet exciton on a single conjugated segment of a chain.
@article{frankevich_polaron-pair_1992,
title = {Polaron-pair generation in poly(phenylene vinylenes)},
volume = {46},
url = {http://dx.doi.org/10.1103/physrevb.46.9320},
doi = {10.1103/physrevb.46.9320},
abstract = {The effects of weak magnetic fields on the photoconductivity of poly( p -phenylene vinylene) (PPV) and two derivatives; poly(1;4-phenylene-1;2-dimethoxyphenyl vinylene) (DMOP-PPV) and poly(2-phenyl-1;4-phenylene vinylene) (PPPV); were observed within the temperature range 130–350 K. These effects are attributed to the formation of interchain pairs involving a negative polaron and a positive polaron. A polaron pair is formed as a result of interchain electron transfer from a molecular exciton. The lifetime of a pair is estimated to be within the range of 10 -8– 10 -9 s. Thermal dissociation of a polaron pair produces free charge carriers; and recombination of the pair regenerates a singlet or triplet exciton on a single conjugated segment of a chain.},
number = {15},
journal = {Physical Review B},
author = {Frankevich, E. L. and Lymarev, A. A. and Sokolik, I. and Karasz, F. E. and Blumstengel, S. and Baughman, R. H. and Hörhold, H. H.},
year = {1992},
pages = {9320--9324}
}