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Improvement of device performances by thin interlayer in conjugated polymers/methanofullerene plastic solar cell

Park, Joonyoung; Han, Sung-Hwan; Senthilarasu, S.; Lee, Soo-Hyoung


Joonyoung Park

Sung-Hwan Han

Soo-Hyoung Lee


Recent studies have reported that a thin interlayer between poly(3, 4-ethylene dioxythiophene)-poly(styrene sulfonic acid) (PEDOT: PSS) and an emissive polymer layer leads to a large increase in the performances of polymer light-emitting diodes (PLEDs) by preventing significant quenching of the radiative excitons at the PEDOT: PSS interface; therefore, acting as an efficient exciton-blocking layer. Using the similar idea, a thin interlayer was fabricated between PEDOT: PSS and the active layer of conjugated polymers/methanofullerene composites in a plastic solar cell. The interlayer consisted of a poly(fluorene)-based hole transporter spin-coated directly on top of the PEDOT: PSS layer. The devices with the interlayer exhibited a higher efficiency than in those without the interlayer.

Journal Article Type Article
Acceptance Date Jan 9, 2007
Online Publication Date Feb 20, 2007
Publication Date May 4, 2007
Deposit Date Mar 14, 2023
Print ISSN 0927-0248
Electronic ISSN 1879-3398
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 91
Issue 8
Pages 751-753
Keywords Plastic solar cell, Conjugated polymer, Interlayer