7856
Here we provide a real - time view of hot CT exciton formation and relaxation using femtosecond nonlinear optical spectroscopies and non - adiabatic mixed quantum mechanics / molecular mechanics simulations in the phthalocyanine - fullerene model OPV system .
 Chemical: phthalocyanine; Chemical: fullerene
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: phthalocyanine; Chemical: fullerene