Impact of alkyl chain length of 1,n-diiodoalkanes on PC71BM distribution in both bulk and air surface of PTB7:PC71BM film
文摘

The effect of varied alkyl chain length of additives on the PC71BMs was systematically investigated for the first time.

The length of alkyl chain of additives influences on the surface morphology of PTB7:PC71BM bulk heterojunction film.

The electrical properties of PTB7:PC71BM solar cells have been found to closely correlate with chain length of additives.

A new four-step route is finally proposed to further optimize the performance of additive based polymer solar cell.

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