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Updated: May 8, 2026

Printing Fabrication of Bulk Heterojunction Solar Cells and In Situ Morphology Characterization
Published on: January 29, 2017
The role of additive in diketopyrrolopyrrole-based small molecular bulk heterojunction solar cells
Hongyu Wang1, Feng Liu, Laju Bu
1Department of Chemistry, Shanghai University, Shanghai, 200444, P. R. China.
Abstract:
A new diketopyrrolopyrrole-based small molecule for solution-processed OPVs is synthesized. The chemical additive has a profound effect in refining the morphology and, thus, significantly increases the efficiencies of the devices. The role of the additive is characterized by various techniques and the additive-driven structure-property relationship is established, which reveals that the additive affects the crystallization, PCBM aggregation, and phase separation.
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