A four-directional non-fullerene acceptor based on tetraphenylethylene and diketopyrrolopyrrole functionalities for efficient photovoltaic devices with a high open-circuit voltage of 1.18 V

Anushri Rananaware; Akhil Gupta; JingLiang Li; Ante Bilic; Lathe Jones; Suresh Bhargava; Sheshanath V Bhosale

doi:10.1039/c6cc03730e

A four-directional non-fullerene acceptor based on tetraphenylethylene and diketopyrrolopyrrole functionalities for efficient photovoltaic devices with a high open-circuit voltage of 1.18 V

Chem Commun (Camb). 2016 Jun 30;52(55):8522-5. doi: 10.1039/c6cc03730e.

Authors

Anushri Rananaware¹, Akhil Gupta², JingLiang Li³, Ante Bilic⁴, Lathe Jones⁵, Suresh Bhargava⁶, Sheshanath V Bhosale¹

Affiliations

¹ School of Science, RMIT University, GPO Box 2476, Melbourne, Victoria 3001, Australia. sheshanath.bhosale@rmit.edu.au.
² School of Science, RMIT University, GPO Box 2476, Melbourne, Victoria 3001, Australia. sheshanath.bhosale@rmit.edu.au and Institute for Frontier Materials, Deakin University, Waurn Ponds, Victoria 3216, Australia. akhil.gupta@deakin.edu.au.
³ Institute for Frontier Materials, Deakin University, Waurn Ponds, Victoria 3216, Australia. akhil.gupta@deakin.edu.au.
⁴ Virtual Nanoscience Lab, CSIRO Manufacturing, Parkville, Victoria 3052, Australia.
⁵ School of Science, RMIT University, GPO Box 2476, Melbourne, Victoria 3001, Australia. sheshanath.bhosale@rmit.edu.au and Centre for Advanced Materials and Industrial Chemistry (CAMIC), RMIT University, GPO Box 2476, Melbourne, Victoria 3001, Australia.
⁶ Centre for Advanced Materials and Industrial Chemistry (CAMIC), RMIT University, GPO Box 2476, Melbourne, Victoria 3001, Australia.

PMID: 27263442
DOI: 10.1039/c6cc03730e

Abstract

Through the conjunction of tetraphenylethylene and diketopyrrolopyrrole functionalities, a novel four-directional non-fullerene electron acceptor (denoted as 4D) was designed, synthesized and characterized. The new chromophore is highly soluble (for instance >30 mg mL(-1) in o-dichlorobenzene), thermally stable, and exhibits energy levels matching those of the conventional and routinely used donor polymer poly(3-hexyl thiophene). A power conversion efficiency of 3.86% was obtained in solution-processable bulk-heterojunction devices with a very high open circuit voltage of 1.18 V.