Electrical and Optical Simulation of Tris (8-hydroxyquinoline) Aluminium-Based Microcavity Organic Light Emitting Diode (MOLED)

Chan, Jeffrey; Rakić, Aleksandar D.; Yeow, Y.T.; Djurišić, Aleksandra B.

doi:10.1109/commad.2004.1577490

Cited by 4 publications

(4 citation statements)

References 22 publications

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“…As we can see from Fig. 5, the maximum emission intensity can be obtained by adapting the thickness of ETL and HTL 36 and 100 nm ,respectively, because the emission layer at these thicknesses is aligned with the position of the antinode of the resonant cavity (Chan et al 2004(Chan et al , 2006.…”

Section: Resultsmentioning

confidence: 98%

“…The simulation of microcavity QDLED is based on the model that has been recently developed by Chan et al (2004) for microcavity OLED. The external emission spectrum of microcavity light-emitting diode based on semiconductor QD is given by where λ is the emission wavelength, ϕtop, ϕbot are the wavelength dependent phase changes upon reflection from top and bottom mirrors respectively, the phase shift upon reflection from the mirrors is calculated using the matrix method (Macleod 2001), where L = j n j d j is the optical thickness of the cavity (Chan et al 2006), and the summation is performed over all the layers inside the cavity with thicknesses d j , and refractive indices n j (λ), z i is the optical distance of the emitting dipoles to the metal mirror (cathode) with reflectivity R top and R bot is the reflectivity of bottom mirror (Ag), the bottom reflection coefficient was determined by applying matrix formalism with incoherent substrate correction using the modified matrix approach of Katsidis and Siapkas (2002), Mitsas and Siapkas (1995).…”

Section: Description Of Modelmentioning

confidence: 99%

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Simulation of electroluminescence of quantum dot-based microcavity light-emitting device

2011

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We present a detailed analysis and computations of the emitted radiation spectrum for quantum dots (QDs) microcavity light-emitting device, where the total physical thickness of the cavity spacer was kept at 254 nm which corresponds to the wavelength of the mode number (m) = 1 resonant mode of the cavity. Our calculation gives good results for QD diameter only from 1.2 to 6.4 nm. The computations are used to examine how the emitted radiation spectrum can be optimized by varying the position of the light-emitting layer, the type of cathode material, the choice of hole transport layer material, and the thickness of electron transport layer, QD layer, and hole transport layer. These studies showed that the variation of layers geometry and the position of the light-emitting layer will optimize the output intensity and the radiation spectrum and varying the ETL and QD layer thickness will have a more effect on the emitted spectrum than varying HTL thickness. In addition, we have examined the effect of using different quantum dots sizes in emission layer. On the other hand, we have investigated the difference between the electroluminescence (EL) emissions for microcavity device in comparison with the non-cavity device, and we have found that the full width at half maximum (FWHM) of the EL is reduced from 45 nm for the QD non-cavity LED to 30 nm for the output of a resonant microcavity device. Finally, we have investigated the compatibility between our calculation and the experimental results and found a fairly good agreement between them.

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Section: Resultsmentioning

confidence: 98%

Section: Description Of Modelmentioning

confidence: 99%

Simulation of electroluminescence of quantum dot-based microcavity light-emitting device

2011

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“…The simulator is based on the one-dimensional time-independent drift-diffusion transport model, which models the charge carrier transport inside the organic semiconductor. This model contains the continuity equation for electrons and holes and the charge carrier Proceedings of the 10 th ICEENG Conference, 19-21 April, 2016 EE047 -5 motilities for electrons and holes [14,15]. Poole-Frenkel-like form is the fielddependent mobility model used which is given by [16]…”

Section: Device Model and Simulation Parametersmentioning

confidence: 99%

Electrical and Optical Characterization of SMOLED and PLED

Mostafa¹,

Issa

Shehata

et al. 2016

The International Conference on Electrical Engineering

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Organic Light-Emitting Diode (OLED) is one of the most interesting areas of scientific research in the field of optoelectronic devices. The aim of this paper is to model the two types of Organic LED which are polymer LEDs (PLED) and OLEDs made with small molecules (SMOLED). The electrical and optical characteristics of the two devices are studied. The simulation tool used is ATLAS-SILVACO. Some parameters are swept in the device to optimize the OLED performance, such as thickness of layers and number of layers. PLED has higher luminance and current density than SMOLED.

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“…The simulator is based on the one-dimensional time-independent drift-diffusion transport model, which models the charge carrier transport inside the organic semiconductor. This model contains the continuity equation for electrons and holes and the charge carrier motilities for electrons and holes [14,15]. Poole-Frenkel-like form is the field-dependent mobility model used which is given by [16] (2)…”

Section: Device Model and Simulation Parametersmentioning

confidence: 99%

Electrical and Optical Characterization of Smoled and Pled

Mostafa

Issa

Shehata

et al. 2016

Journal of Al-Azhar University Engineering Sector

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Organic Light-Emitting Diode (OLED) is one of the most interesting areas of scientific research in the field of optoelectronic devices. The aim of this paper is to model the two types of polymer LEDs (PLED) and OLEDs made with small molecules (SMOLED). The electrical and optical characteristics of the two devices are studied. The simulation tool used is ATLAS-SILVACO. Some parameters are swept in the device to optimize the OLED performance, such as thickness of layers and number of layers. PLED has higher luminance and current density than SMOLED.

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Electrical and Optical Simulation of Tris (8-hydroxyquinoline) Aluminium-Based Microcavity Organic Light Emitting Diode (MOLED)

Abstract: Abstract-

Cited by 4 publications

References 22 publications

Simulation of electroluminescence of quantum dot-based microcavity light-emitting device

Simulation of electroluminescence of quantum dot-based microcavity light-emitting device

Electrical and Optical Characterization of SMOLED and PLED

Electrical and Optical Characterization of Smoled and Pled

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