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Excitons in nanoscale systems

[size=4][align=center][b]Excitons in nanoscale systems[/b][/align][/size][table]                                                               
ipD\(Y,[2G~ GREGORY D. SCHOLES1 and GARRY RUMBLES2[/table][table]1 Department of Chemistry 80 St George Street, Institute for Optical Sciences, and Centre for Quantum Information and Quantum Control, University of Toronto, Toronto, Ontario M5S 3H6, CanadacP.X9F ~fK&vns
2 National Renewable Energy Laboratory, Chemical and Biosciences Center, MS3216, 1617 Cole Boulevard, Golden, Colorado 80401-3393, USA1U0]-AR&p/R.U R
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[/table][size=3][color=DarkGreen]Nanoscale systems are forecast to be a means of integrating desirable attributes of molecular and[/color],WT)X6X+r
[color=DarkGreen]bulk regimes into easily processed materials. Notable examples include plastic light-emitting devices[/color]
F_^4K ^!nTPp w [color=DarkGreen]and organic solar cells, the operation of which hinge on the formation of electronic excited states,[/color]/N%_Vj:qf \
[color=DarkGreen]excitons, in complex nanostructured materials. The spectroscopy of nanoscale materials reveals[/color]
|*giW/f [color=DarkGreen]details of their collective excited states, characterized by atoms or molecules working together to[/color]
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e1jq [color=DarkGreen]capture and redistribute excitation. What is special about excitons in nanometre-sized materials? Here[/color]
5{3~:u`_ I~9?6R [color=DarkGreen]we present a cross-disciplinary review of the essential characteristics of excitons in nanoscience.[/color]
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f1YN [color=DarkGreen]Topics covered include confi nement effects, localization versus delocalization, exciton binding energy,[/color][color=DarkGreen]exchange interactions and exciton fi ne structure, exciton–vibration coupling and dynamics of excitons.[/color][color=DarkGreen]Important examples are presented in a commentary that overviews the present understanding [/color][color=DarkGreen]of excitons in quantum dots, conjugated polymers, carbon nanotubes and photosynthetic lightharvesting [/color][color=DarkGreen]antenna complexes.[/color][/size]
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