AZO films with Al nano-particles to improve the light extraction efficiency of GaN-based light-emitting diodes

Chou, Ying; Yan, Jheng Tai; Lee, Hsin Ying; Lee, Ching-Ting

doi:10.1117/12.765633

Cited by 2 publications

(2 citation statements)

References 13 publications

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“…From the UV-VIS spectra, a transparency between 75 and 87% in the range 400-800 nm was obtained for the AZO layers (Figure 10, curve 1). The thickness of the AZO films was evaluated using the formula from [72] which takes into consideration successive interference maxima and minima. The obtained values (between 940 and 1310 nm) are given in Table 1.…”

Section: Phthalocyanines and Some Current Applicationsmentioning

confidence: 99%

Heterostructures Based on Porphyrin/Phthalocyanine Thin Films for Organic Device Applications

Socol¹,

Preda²,

Stănculescu³

et al. 2017

Phthalocyanines and Some Current Applications

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Multilayer or blend heterostructures based on porphyrins and phthalocyanines were obtained on different substrates using VTE and MAPLE methods. Stacked structures based on ZnPc and C60 with NTCDA were prepared by VTE on ITO/glass, their current value being increased by the deposition of the materials in an inverted configuration or by using ITO/PEDOT:PSS as a substrate. Multilayer structures comprising ZnPc and NTCDA were fabricated by MAPLE on an AZO/glass. Treating the AZO in oxygen plasma, a higher current value was obtained for the deposited heterostructures. The oxygen plasma treatment can increase the work function of the AZO resulting in a decrease of the energetic barrier from AZO/organic interface and finally improving the charge transport. Stacked layers or blend heterostructures having ZnPc, MgPc and TPyP were deposited by MAPLE on ITO/PET. In the case of those containing MgPc and TPyP, an increase in the current value (in dark) was obtained for the blend compared to the stacked layer configuration. For those with ZnPc and TPyP, under illumination, a photovoltaic effect was observed for the blend structure. All heterostructures are featured by a large absorption in the visible domain of the solar spectrum and suitable electrical properties for their use in OPV applications.

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Section: Phthalocyanines and Some Current Applicationsmentioning

confidence: 99%

Heterostructures Based on Porphyrin/Phthalocyanine Thin Films for Organic Device Applications

Socol¹,

Preda²,

Stănculescu³

et al. 2017

Phthalocyanines and Some Current Applications

View full text Add to dashboard Cite

show abstract

“…The deep-UV optical devices are needed in flame monitoring, optical fibres, interferometric lithography, detectors lenses or femtosecond lasers [125] . Earlier, various research groups remarkably improves the LED efficiency using AR coatings such as UV-LED of GaN doubles the efficiency at 365 nm wavelength [126] , Al 2 O 3 -InP/InGaAsP LEDs for optical communications [127] , LEDs-optical lenses [128] Al 2 O 3 -TiO 2 AR coating for red light organic electroluminescent devices [129] , Al nanoparticles by co-sputtering for GaN-LEDs [130][131][132] Al 2 O 3 -ZnO 2 GaN-LEDs [133][134][135][136] , ZnO 2 -LEDs [132,135] , Indium tin Oxide nanorods for LEDs [137][138][139][140] . Some of these methods are applicable commercially, but few of them are restricted to labs due to costly groundwork, difficult process and damaged induced procedure while few techniques limited to small area LEDs with minor current values.…”

Section: Applicationsmentioning

confidence: 99%

A Mini Review: Antireflective Coatings Processing Techniques, Applications and Future Perspective

Khan¹,

Wu²,

Pan³

et al. 2017

Res. Rev. J Mat. Sci

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Antireflective coatings (AR) are widely applied to eliminate the unwanted surface reflections from the AR coated substrate. In different optoelectronic devices, AR coatings have potential usage in photovoltaic solar cells, sensors, display devices, automobile industries to reduce reflectance, glare and enhance light transmittance. Natural phenomenon inspires researchers, and they generate bionic AR coatings copying the nature such as moth eyes, or cicada wings to fabricate efficient light harvesting AR coatings. In the current review article, we analyse and evaluate critically the progress and recent development in the fabrication of AR thin films comprising organic coatings, inorganic coatings, polymer AR coatings and bionic AR coatings. We predominantly emphasise the AR coatings fabrication by different methods and pinpoints the technological challenges in their real-world reliability. Finally, we address the future challenges and potential strategies for their upcoming prospect.

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AZO films with Al nano-particles to improve the light extraction efficiency of GaN-based light-emitting diodes

Cited by 2 publications

References 13 publications

Heterostructures Based on Porphyrin/Phthalocyanine Thin Films for Organic Device Applications

Heterostructures Based on Porphyrin/Phthalocyanine Thin Films for Organic Device Applications

A Mini Review: Antireflective Coatings Processing Techniques, Applications and Future Perspective

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