6808
Our results indicate that in the tested molecular aggregates , even when the static structure disorder dominates exciton dephasing dynamics , the extent of exciton delocalization may be limited by dynamical fluctuations , mainly exciton - phonon coupling .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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