0

A Non-Fullerene Electron Acceptor Based on Fluorene and Diketopyrrolopyrrole Building Blocks for Solution-Processable Organic Solar Cells With an Impressive Open-Circuit Voltage

Hemlata Patil, Wang Xi Zu, Akhil Gupta, Vijila Chellappan, Ante Bilic, Prashant Sonar, Anushri Rananaware, Sidhanath V Bhosale, Sheshanath V Bhosale

Phys Chem Chem Phys. 2014 Nov 21;16(43):23837-42.

PMID: 25274538

Abstract:

A novel solution-processable non-fullerene electron acceptor 6,6'-(5,5'-(9,9-dioctyl-9H-fluorene-2,7-diyl)bis(thiophene-5,2-diyl))bis(2,5-bis(2-ethylhexyl)-3-(thiophen-2-yl)pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione) (DPP1) based on fluorene and diketopyrrolopyrrole conjugated moieties was designed, synthesized and fully characterized. DPP1 exhibited excellent solubility and high thermal stability which are essential for easy processing. Upon using DPP1 as an acceptor with the classical electron donor poly(3-hexylthiophene), solution processable bulk-heterojunction solar cells afforded a power conversion efficiency of 1.2% with a high open-circuit voltage (1.1 V). As per our knowledge, this value of open circuit voltage is one of the highest values reported so far for a bulk-heterojunction device using DPP1 as a non-fullerene acceptor.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP188201163 Poly[9,9-bis-(2-ethylhexyl)-9H-fluorene-2,7-diyl] Poly[9,9-bis-(2-ethylhexyl)-9H-fluorene-2,7-diyl] 188201-16-3 Price
LS772184 Poly(9,9-dioctyl-9H-fluorene-2,7-diyl) Poly(9,9-dioctyl-9H-fluorene-2,7-diyl) Price
qrcode