Efficient organic light-emitting diodes with fluorine-doped tin-oxide anode and electrochemically synthesized sulfonated polyaniline as hole transport layer

Abstract

In this work we report effi ciency measurements on light-emitting diodes with electrochemically synthesized sulfonated polyaniline as hole transport layer. The anode used in our devices is fluorine-doped tin oxide, the blocking layer is electrochemically synthesized poly(9,9-dioctyl-1,4-fluorenylenevinylene) and the electron transporting material and emitter is tris-(8-hydroxyquinoline) aluminum. Sulfonated polyaniline based devices presented effi ciency of 0.79 cd/A.

A facile synthesis of sulfonated poly(diphenylamine) and the application as a novel hole injection layer in polymer light emitting diodes

“…Fig. 9 shows EL efficiency with the current density for the devices 10 with different HILs. The maximum efficiency is ca.…”

“…So far, PANI has been rarely employed as HIL because it had the problem of solubility and processability. Besides, the derivative, sulfonated PANI, is also not a proper candidate for HIL because the strong visible light region absorption causes EL spectrum of emissive layer inevitably shifts [10]; and high conductivity (10 À1 e10 À2 S/cm) causes crosstalk in the passive matrix display device.…”

Influence of the thickness of electrochemically deposited polyaniline used as hole transporting layer on the behaviour of polymer light-emitting diodes

“…Sulfonated polyaniline has been employed as HTL in an organic diode [22]. The performance obtained with the electrochemically synthesised layer is similar to that obtained with spin-coated PEDOT:PSS [23]. Electrochemically synthesised polyaniline doped with camphorsulfonic acid has been employed for a poly(3-hexythiophene)-based light-emitting diode [24] and also has been used as dispersant agent in a zinc-selenide quantum dot light emitting diode [25].…”

Organic Solar Cells Using Transparent SnO2–F Anodes

“…Nevertheless, the cost of F-doped SnO 2 (SnO 2 -F)-coated glass is less than one third that of ITO-coated glass. [8] While there have been reports of using SnO 2 -F as the transparent anode for polymeric OLEDs [9,10] and solar cells, [11,12] to our knowledge there has yet to be a demonstration of an organic heterojunction (HJ) PV cell based on SnO 2 -F anodes with an efficiency greater than 0.1 %. [11,12] Here, we report on copper phthalocyanine (CuPc)/C 60 HJ PV cells on SnO 2 -F anodes [8] with a power conversion efficiency of 2.5 % at 1 sun simulated AM 1.5 G (AM: air mass; G: Global) illumination.…”