Highly efficient PLEDs based on poly(9,9-dioctylfluorene) and Super Yellow blend with Cs2CO3 modified cathode

Hassan, Muhammad Umair; Liu, Yee Chen; Hasan, Kamran ul; Butt, Haider; Chang, Jyh‐Yeong; Friend, Richard H.

doi:10.1016/j.apmt.2015.08.005

Cited by 16 publications

(15 citation statements)

References 49 publications

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“…We believe that with further optimization, maximum luminescence of both printed and spin-coated SY OLEDs can achieve values of approx. 100,000 cd/m 2 , published for the best spin coated SY OLEDs fabricated in controlled atmosphere 48,49 . Our experiment confirms that the inkjet printing in ambient conditions is a viable method to obtain bright Super Yellow OLEDs.…”

Section: Discussionmentioning

confidence: 99%

Inkjet Printing of Super Yellow: Ink Formulation, Film Optimization, OLEDs Fabrication, and Transient Electroluminescence

Amruth¹,

Szymański²,

Luszczynska³

et al. 2019

Sci Rep

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Inkjet printing technique allows manufacturing low cost organic light emitting diodes (OLEDs) in ambient conditions. The above approach enables upscaling of the OLEDs fabrication process which, as a result, would become faster than conventionally used vacuum based processing techniques. In this work, we use the inkjet printing technique to investigate the formation of thin active layers of well-known light emitting polymer material: Super Yellow (poly(para-phenylene vinylene) copolymer). We develop the formulation of Super Yellow ink, containing non-chlorinated solvents and allowing stable jetting. Optimization of ink composition and printing resolution were performed, until good quality films suitable for OLEDs were obtained. Fabricated OLEDs have shown a remarkable characteristics of performance, similar to the OLEDs fabricated by means of spin coating technique. We checked that, the values of mobility of the charge carriers in the printed films, measured by transient electroluminescence, are similar to the values of mobility measured in spin coated films. Our contribution provides a complete framework for inkjet printing of high quality Super Yellow films for OLEDs. The description of this method can be used to obtain efficient printed OLEDs both in academic and in industrial settings.

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Section: Discussionmentioning

confidence: 99%

Inkjet Printing of Super Yellow: Ink Formulation, Film Optimization, OLEDs Fabrication, and Transient Electroluminescence

Amruth¹,

Szymański²,

Luszczynska³

et al. 2019

Sci Rep

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“…This opened the path to the range of different conducting polymers of which polyaniline (PANI), polypyrrole (PPY) and poly-3,4-ethylene dioxythiophene (PEDOT) are attractive candidates in biomedical applications for their biocompatibility, ease of synthesis, low cost, and rich redox chemistry [4]. Among the various CPs, PEDOT is one of the most successful and mature materials under development [7][8][9][10][11]. PEDOT is a high conductivity polymer (of the order 𝑂(10 ) S/m [12]), obtained by the chemical or electrochemical polymerization of EDOT monomers.…”

Section: Introductionmentioning

confidence: 99%

Chemical stability and reversibility of PEDOT:PSS electrodes in view of low-cost biocompatible cellulose-assisted biosensors

Machrafi

Bobinac

Dongo

et al. 2021

Materials Today Communications

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“…EEA is considered to be the main loss channel which becomes stronger for larger SY concentrations. The redshift for increased SY concentration is also associated with aggregate formation which generally results interchain interaction at lower energies . It is notable that these results are repeatable: the output intensities do not change under identical pump conditions in repeated experiments.…”

Section: Resultsmentioning

confidence: 65%

Low thresholds for a nonconventional polymer blend—Amplified spontaneous emission and lasing in F8₁₋_x:SY_x system

Hassan

Liu

Butt

et al. 2015

J Polym Sci B Polym Phys

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A mixture of two polymer materials, poly (9,9‐dioctylfluorene) (F8), and one of the poly(para‐phenylenevinylene) derivatives, superyellow (SY) have been used to make F81−x:SYx polymer blend system. Under a 3–5 ns pulsed‐laser excitation, this system showed excellent optical properties with low threshold values of ≈14 µJ/cm2 and ≈8 µJ/cm2 for amplified spontaneous emission and optically pumped lasing, respectively. The proposed system was also electroluminescent and an interesting candidate for future research on polymer injection lasers. © 2015 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2016, 54, 15–21

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Highly efficient PLEDs based on poly(9,9-dioctylfluorene) and Super Yellow blend with Cs2CO3 modified cathode

Cited by 16 publications

References 49 publications

Inkjet Printing of Super Yellow: Ink Formulation, Film Optimization, OLEDs Fabrication, and Transient Electroluminescence

Inkjet Printing of Super Yellow: Ink Formulation, Film Optimization, OLEDs Fabrication, and Transient Electroluminescence

Chemical stability and reversibility of PEDOT:PSS electrodes in view of low-cost biocompatible cellulose-assisted biosensors

Low thresholds for a nonconventional polymer blend—Amplified spontaneous emission and lasing in F8₁₋_x:SY_x system

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Highly efficient PLEDs based on poly(9,9-dioctylfluorene) and Super Yellow blend with Cs2CO3 modified cathode

Cited by 16 publications

References 49 publications

Inkjet Printing of Super Yellow: Ink Formulation, Film Optimization, OLEDs Fabrication, and Transient Electroluminescence

Inkjet Printing of Super Yellow: Ink Formulation, Film Optimization, OLEDs Fabrication, and Transient Electroluminescence

Chemical stability and reversibility of PEDOT:PSS electrodes in view of low-cost biocompatible cellulose-assisted biosensors

Low thresholds for a nonconventional polymer blend—Amplified spontaneous emission and lasing in F81−x:SYx system

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Product

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Low thresholds for a nonconventional polymer blend—Amplified spontaneous emission and lasing in F8₁₋_x:SY_x system