Strong Photophysical Similarities between Conjugated Polymers and J-aggregates.

作者: Hajime Yamagata , Frank C. Spano

DOI: 10.1021/JZ402450M

关键词:

摘要: The photophysical properties of emissive conjugated polymer (CP) chains are compared to those linear J-aggregates. two systems share many in common, including a red-shifted absorption spectrum with increasing chain/aggregate length, enhanced radiative decay rates (superradiance) relative single monomer/molecule, and several vibronic signatures involving the vinyl-stretching mode common molecules. In particular, scaling 0–0/0–1 photoluminescence ratio rate inverse square root temperature red-phase polydiacetylene is also characteristic linear, disorder-free strong resemblance traced excitonic band structure; one-dimensional direct gap semiconductors as well J-aggregates, exciton curvature positive at gamma point (k = 0).

参考文章(60)
BRUCE S. HUDSON, BRYAN E. KOHLER, KLAUS SCHULTEN, Linear Polyene Electronic Structure and Potential Surfaces Excited States. ,vol. 6, pp. 1- 95 ,(1982) , 10.1016/B978-0-12-227206-6.50006-5
Oliver Kühn, Villy Sundström, Pump–probe spectroscopy of dissipative energy transfer dynamics in photosynthetic antenna complexes: A density matrix approach Journal of Chemical Physics. ,vol. 107, pp. 4154- 4164 ,(1997) , 10.1063/1.474803
François Dubin, Romain Melet, Thierry Barisien, Roger Grousson, Laurent Legrand, Michel Schott, Valia Voliotis, Macroscopic coherence of a single exciton state in an organic quantum wire Nature Physics. ,vol. 2, pp. 32- 35 ,(2006) , 10.1038/NPHYS196
Katsuichi Kanemoto, Tatsuji Sudo, Ichiro Akai, Hideki Hashimoto, Tsutomu Karasawa, Yoshio Aso, Tetsuo Otsubo, None, Intrachain photoluminescence properties of conjugated polymers as revealed by long oligothiophenes and polythiophenes diluted in an inactive solid matrix Physical Review B. ,vol. 73, pp. 235203- ,(2006) , 10.1103/PHYSREVB.73.235203
Paul E. Shaw, Arvydas Ruseckas, Ifor D. W. Samuel, Exciton Diffusion Measurements in Poly(3‐hexylthiophene) Advanced Materials. ,vol. 20, pp. 3516- 3520 ,(2008) , 10.1002/ADMA.200800982
Jenny Clark, Carlos Silva, Richard H. Friend, Frank C. Spano, Role of Intermolecular Coupling in the Photophysics of Disordered Organic Semiconductors: Aggregate Emission in Regioregular Polythiophene Physical Review Letters. ,vol. 98, pp. 206406- ,(2007) , 10.1103/PHYSREVLETT.98.206406
I. B. Mortimer, R. J. Nicholas, Role of bright and dark excitons in the temperature-dependent photoluminescence of carbon nanotubes. Physical Review Letters. ,vol. 98, pp. 027404- ,(2007) , 10.1103/PHYSREVLETT.98.027404
J. Strümpfer, M. Şener, K. Schulten, How Quantum Coherence Assists Photosynthetic Light Harvesting. Journal of Physical Chemistry Letters. ,vol. 3, pp. 536- 542 ,(2012) , 10.1021/JZ201459C
Roel Tempelaar, Anna Stradomska, Jasper Knoester, Frank C. Spano, Anatomy of an exciton: vibrational distortion and exciton coherence in H- and J-aggregates. Journal of Physical Chemistry B. ,vol. 117, pp. 457- 466 ,(2013) , 10.1021/JP310298N