TITLE

Stability of the interface between indium-tin-oxide and poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) in polymer light-emitting diodes

AUTHOR(S)
de Jong, M. P.; de Jong, M.P.; van IJzendoorn, L. J.; van IJzendoorn, L.J.; de Voigt, M. J. A.; de Voigt, M.J.A.
PUB. DATE
October 2000
SOURCE
Applied Physics Letters;10/2/2000, Vol. 77 Issue 14
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A cause for degradation of polymer light-emitting diodes is the oxidation of the polymer by oxygen diffusing out of the indium-tin-oxide (ITO) anode. This problem can be solved by the introduction of an organic hole-injecting film, poly-(3,4-ethylenedioxythiophene) (PEDOT) doped with poly(styrenesulfonate) (PSS), between the ITO and the emissive polymer. Indeed, a dramatic improvement of the lifetime and also the luminous efficiency has been observed. However, our Rutherford backscattering (RBS) studies show that the ITO/PEDOT:PSS interface is not stable. In as prepared glass/ITO/PEDOT:PSS samples 0.02 at. % indium was found in the PEDOT:PSS film. Annealing in a nitrogen atmosphere at 100 °C during 2500 h increased the indium concentration to 0.2 at. %. Upon exposure to air much faster degradation of the ITO/PEDOT:PSS interface was observed; after several days in air the amount of indium reached a saturation concentration of 1.2 at. %. The degradation of the interface can be explained by etching of the ITO due to the strong acidic nature of PEDOT:PSS. © 2000 American Institute of Physics.
ACCESSION #
4412830

 

Related Articles

  • White p-i-n organic light-emitting devices with high power efficiency and stable color. Ho, Meng-Huan; Hsu, Shih-Feng; Ma, Jia-Wei; Hwang, Shiao-Wen; Yeh, Pu-Cheng; Chen, Chin H. // Applied Physics Letters;9/10/2007, Vol. 91 Issue 11, p113518 

    Highly efficient p-i-n two-component white organic light-emitting devices have been fabricated with a thin dual emission layer system comprised of one codeposited emitting layer with blue and yellow dyes and one blue emitting layer, which gives rise to a balance white emission. The p-i-n white...

  • Stable and highly bright white organic light-emitting diode based on 4,4′,4″-tris(N-3-methylphenyl-N-phenyl-amino)-triphenylamine. Yang, Su-Hua; Liu, Mine-Huang; Su, Yan-Kuin // Journal of Applied Physics;10/15/2006, Vol. 100 Issue 8, p083111 

    A stable and very bright white organic light-emitting diode (WOLED) was fabricated with the structure ITO/m-MTDATA (30 nm)/NPB (30 nm)/DPVBi (11 nm)/Alq3:DCJTB(50 nm)/LiF(1 nm)/Al (250 nm). White light emission was achieved by combining blue and orange emissions emitted from DPVBi and Alq3:DCJTB...

  • Note: Active optical detection of cloud from a balloon platform. Harrison, R. G.; Nicoll, K. A. // Review of Scientific Instruments;2014, Vol. 85 Issue 6, p1 

    A disposable backscatter instrument is described for optical detection of cloud in the atmosphere from a balloon-carried platform. It uses an ultra-bright light emitting diode (LED) illumination source with a photodiode detector. Scattering of the LED light by cloud droplets generates a small...

  • Towards the optimization of materials and processes for flexible organic electronics devices. S. Logothetidis; A. Laskarakis // European Physical Journal - Applied Physics;Mar2009, Vol. 46 Issue 4, p0 

    It is well known that the implementation of flexible organic electronic devices (FEDs) in our everyday life improve and revolutionize several aspects of our behavior. Although there has been considerable progress in the area of flexible inorganic devices (based on Si), there are numerous...

  • 1070. The vibrostabilization optimization of a sorting arm structure. Tao Liu; Bin Li; Shuting Wang; Kuanmin Mao // Journal of Vibroengineering;Sep2013, Vol. 15 Issue 3, p1585 

    Vibration in the chip production process greatly limits the devices' working efficiency. There is a strong need to develop an optimization method to improve the structure vibrostabilization. In this paper, we studied an LED sorting arm and optimization the sorting arm in three steps. Firstly, a...

  • Improving the stability of organic light-emitting devices by using a thin Mg anode buffer layer. Aziz, Hany; Luo, Yichun; Xu, Gu; Popovic, Zoran D. // Applied Physics Letters;9/4/2006, Vol. 89 Issue 10, p103515 

    Introducing a thin Mg layer at the hole injection contact of organic light-emitting devices remarkably improves their operational stability. Devices in which a ∼2.5 nm thick Mg layer is inserted between the indium tin oxide anode and a tetrafluoro-tetracyanoquinodimethane-doped hole...

  • Unique oxide overcoating of CuInS/ZnS core/shell quantum dots with ZnGaO for fabrication of white light-emitting diode with improved operational stability. Song, Woo-Seuk; Jang, Eun-Pyo; Kim, Jong-Hoon; Jang, Ho; Yang, Heesun // Journal of Nanoparticle Research;Feb2013, Vol. 15 Issue 2, p1 

    CuInS quantum dots (QDs) have been recently highlighted as blue-to-yellow color converters for the demonstration of QD-based white light-emitting diodes (LEDs) owing to their advantageous fluorescent attributes including a broadband yellow emission and exceptional quantum yield. Similar to other...

  • Analysis of ion induced surface damage on silicon etched in a CF4 plasma. Thomas, John H.; McGinn, J. T.; Hammer, L. H. // Applied Physics Letters;10/1/1985, Vol. 47 Issue 7, p746 

    Etchant residue and backscattered material have been observed on silicon surfaces etched in a CF4 plasma. In addition to chemical contamination, the surface is damaged by ion bombardment with dissociated CF4 ions. X-ray photoelectron spectroscopy and reflection high-energy electron diffraction...

  • Double-pass tapered amplifier diode laser with an output power of 1 W for an injection power of only 200 μW. Bolpasi, V.; von Klitzing, W. // Review of Scientific Instruments;Nov2010, Vol. 81 Issue 11, p113108 

    A 1 W tapered amplifier requiring only 200 μW of injection power at 780 nm is presented in this paper. This is achieved by injecting the seeding light into the amplifier from its tapered side and feeding the amplified light back into the small side. The amplified spontaneous emission of the...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics