4.8 Article

Improving the Efficiency of Organic Solar Cells by Introducing Perylene Diimide Derivative as Third Component and Individually Dissolving Donor/Acceptor

Journal

CHEMSUSCHEM
Volume 14, Issue 24, Pages 5442-5449

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.202101824

Keywords

energy conversion; non-fullerene acceptors; organic photovoltaics; perylene diimide derivative; solar cells

Funding

  1. National Natural Science Foundation of China [51933001, 51973020]

Ask authors/readers for more resources

By utilizing a PDI derivative as the third component, high-efficiency ternary organic solar cells were prepared with improved device efficiency and short-circuit current density, while still maintaining a high open-circuit voltage.
A perylene diimide (PDI) derivative was used as the third component to prepare high-efficiency ternary organic solar cells (OSCs). PDI derivatives usually bear a wide bandgap and a long exciton diffusion length, which could be helpful to promote the device efficiency and still retain a high open-circuit voltage (V-oc). Compared with the binary OSC, the photovoltaic performance improved. Further changing the method for preparing the processing solutions from dissolving the polymer donor and small-molecule acceptor ITTC together to dissolving them individually, molecular packing in the deposited active layer could be adjusted and the short-circuit current density could be increased. As a result, the final device efficiency in such OSCs achieved 12.29 % power conversion efficiency (PCE) with a high V-oc of 0.93 V. When using the PDI derivative as the third component to D18 : BTP-eC9-based OSCs, a high PCE of 17.38 % was obtained, which is the best one among photovoltaic devices employing PDI derivatives.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.8
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available