Criteria for ITO (indium–tin-oxide) thin film as the bottom electrode of an organic light emitting diode

Tak, Yoon‐Heung; Kim, Ki-Beom; Park, Hyoung-Guen; Lee, Kwang-Ho; Lee, Jong-Ram

doi:10.1016/s0040-6090(02)00165-7

Cited by 349 publications

(158 citation statements)

References 6 publications

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“…According to the variation of the lattice spacing, the elastic strain can be defined as (2) where d 0 is the strain-free lattice spacing. Note that the lattice spacing is measured in the direction of the scattering vector, which decreases as the lattice spacing planes parallel to a tensile stress and increases as its planes are normal to a the tensile loading direction.…”

Section: 17mentioning

confidence: 99%

Improving the performance of ITO thin films by coating PEDOT:PSS

Chang

2014

Int. J. of Precis. Eng. and Manuf.-Green Tech.

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This work studies the effect of PEDOT:PSS on electrical, optical and mechanical properties of ITO glass. Various thickness PEDOT:PSS films are deposited on ITO glass by spin coating. The sheet resistance, transmittance, surface roughness, residual stress, friction, and critical load of the coated specimens are tested in sequence. We find that PEDOT:PSS films not only improve the electric performance but also increase the adhesion of ITO glass. The experimental results show that the PEDOT:PSS film improves the surface roughness and then results in a lower electric resistance. It also increases the adhesion and reduces the residual stress of the ITO films. Furthermore, only 1% transmittance is lost due to the PEDOT:PSS film, showing the potential in the applications of organic photovoltaic cells and light-emitting diodes.

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Section: 17mentioning

confidence: 99%

Improving the performance of ITO thin films by coating PEDOT:PSS

Chang

2014

Int. J. of Precis. Eng. and Manuf.-Green Tech.

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“…(root mean square roughness) is the root mean square value of the surface roughness from the centre line. It has been demonstrated that R pv is the relevant factor in terms of electrical instabilities of PLED and that a low average roughness R a is desirable [21]. Table 1 summarises the roughness data, the ITO thickness, deduced from the profilometer and RBS, and the sheet resistance as a function of the acidic treatment time of the ITO.…”

Section: Substrate Characterizationmentioning

confidence: 99%

Correlation between the Indium Tin Oxide morphology and the performances of polymer light-emitting diodes

et al. 2005

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:This paper reports on performance enhancement of polymer light-emitting diodes (PLEDs) based on poly(2,5-bis(3′,7′-dimethyl-octyloxy)1,4-phenylene-vinylene) (BDMO-PPV) after Indium Tin Oxide (ITO) pre-treatment. Diluted aqua regia surface treatments of ITO substrates were investigated before PLEDs manufacturing. The correlation between ITO surface morphology and the properties of devices were discussed. The residual roughness, the global ITO thickness and developed anodic active area were found extremely dependent on treatment time. The performances of the ITO/BDMO-PPV/Ca/Al diodes were improved. With long treatments, the roughness was dramatically increased and poor PLEDs performances were achieved. The incorporation of a conducting polymer layer, poly(3,4-ethylene dioxythiophene) doped with polystyrene sulfonate, between the ITO layer and the emissive polymer, was also studied. With this buffer layer, no effect of the acidic treatment was observed on luminance-voltage characteristics and low turn-on voltage devices were made.

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“…Indium tin oxide (ITO) films are the most widely used material as a transparent electrode of organic light emitting diode and also in other devices like solar cells (Friend et al, 1999;Tak et al, 2002;Hanson et al, 2005). It is interesting to study electron transfer of ITO to suitably modify interactions at the interfaces of dissimilar materials so that desired electronic properties of devices incorporating them can be realized.…”

Section: Manipulation Of Interfacial Electron Transfer Dynamicsmentioning

confidence: 99%