Fabrication of a Poly(3-octylthiophene-2,5-diyl) Electrochemiluminescence Device Assisted by Perylene

Abstract

In this study, we report the light-emitting assistance effect of perylene on a polymer electrochemiluminescence (ECL) device using poly(3-octylthiophene-2,5-diyl) (P3OT). An ECL device is a liquid type self-luminous device with a simple structure, and can be fabricated by a relatively easy procedure. Significant improvement in luminescence properties was confirmed when 1.0 wt % perylene was added to the ECL device using 3.0 wt % P3OT. Improvements of about 12 times of the maximum luminescence intensity and about 23 times of the light-emitting time ratio compared with that of a P3OT ECL device were obtained. We conclude that the light-emitting assistance of perylene is achieved by perylene radical ions shuttling electrons to P3OT while they are moving around in the emitting solution. The light-emitting assistance effect of perylene was also confirmed when poly(3-dodecylthiophene-2,5-diyl), which has almost identical electrochemical and photophysical characteristics to those of P3OT, was used instead of P3OT.

Silylated oligomeric poly(ether-azomethine)s from monomers containing biphenyl moieties: synthesis and characterization

“…From the UV-vis spectra, optical band gap values were obtained using eqn (1). 42,43 E g ¼ 1242/l onset (1) where l onset is the onset wavelength, which was determined by the intersection of the two tangents on the absorption edges and was used to indicate the electronic transition of the onset wavelength. The calculated optical band gap values are shown in Table 4.…”

1,6-Diaminoperylene bisimide with a highly twisted perylene core

“…In addition to the longest wavelength absorption band at around 657 nm, 1 exhibits another shoulder band at ca. 595 nm, and consequently, cover a large part of the visible region relative to that of 1,7-diaminoperylene bisimide (2). Interestingly, the longest wavelength absorption band (702 nm) of 2 (1,7-) is 45 nm red-shifted relative to that of 1 (1,6-), which can be explained by the fact that the 1,7-regioisomer has a more extended effective conjugation length than 1.…”

“…Perylene bisimides (PBIs) and their derivatives have attracted an increasing interest due to their potential applications in molecular optoelectronic devices, such as LCD color filters, 1 light-emitting diodes, 2 photovoltaic cells, 3,4 light-harvesting arrays, 5 photochromic materials, 6 and organic field-effect transistors (OFETs). 7 This family of organic chromophores is advantageous due to their large electron mobility, high photoluminescence quantum yields and molar absorptivities, excellent thermal and optical stabilities, reversible redox properties, self-assembly behaviors, and ease of synthetic modification.…”

Enhanced Stability and Emission Properties of Perylene Dyes by Surface Tethering: Preparation of Fluorescent Ru Nanoparticle Suspensions by Alkyne Linker Chemistry

“…The molecule is composed of five fused benzene rings, providing a stable structure and outstanding fluorescence, [26, 27] also observed for its derivatives. Recently, 3‐ethynyl perylene (EP) has attracted interest owing to the alkyne group attached to the perylene core, which provides synthetic advantages for coupling the molecule to different substrates [27] . EP has been used in the construction of bright emitting units for light harvesting devices and fluorescent systems such as nucleosides, peptides and nanoparticles [28] .…”