Nanosinusoidal Surface Zinc Oxide for Optical Out-coupling of Inverted Organic Light-Emitting Diodes

Kim, Do-Hong; Woo, Kie Young; Han, Jun Hee; Lee, Tae‐Woo; Lee, Ho Seung; Cho, Yong-Hoon; Choi, Kyung Cheol

doi:10.1021/acsphotonics.8b00710

Cited by 16 publications

(7 citation statements)

References 39 publications

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“…This is because the refractive index of the emissive material ( n org ≈ 1.6–2.1) where the light is generated is much higher than refractive indices of substrates ( n sub ) and air ( n air ≈ 1). Various attempts have been proposed to enhance the light outcoupling efficiency, including microlens arrays (MLAs), nanostructures such as quasiperiodic nanomesh and nanoisland, high‐refractive‐index substrates, low‐index grids, scattering layers, nanoparticles (NPs), and diffraction grating …”

Section: Materials and Architecture Design Of Fiber Shaped Lighting Dmentioning

confidence: 99%

Recent Progress of Fiber Shaped Lighting Devices for Smart Display Applications—A Fibertronic Perspective

et al. 2019

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Advances in material science and nanotechnology have fostered the miniaturization of devices. Over the past two decades, the form‐factor of these devices has evolved from 3D rigid, volumetric devices through 2D film‐based flexible electronics, finally to 1D fiber electronics (fibertronics). In this regard, fibertronic strategies toward wearable applications (e.g., electronic textiles (e‐textiles)) have attracted considerable attention thanks to their capability to impart various functions into textiles with retaining textiles' intrinsic properties as well as imperceptible irritation by foreign matters. In recent years, extensive research has been carried out to develop various functional devices in the fiber form. Among various features, lighting and display features are the highly desirable functions in wearable electronics. This article discusses the recent progress of materials, architectural designs, and new fabrication technologies of fiber‐shaped lighting devices and the current challenges corresponding to each device's operating mechanism. Moreover, opportunities and applications that the revolutionary convergence between the state‐of‐the‐art fibertronic technology and age‐long textile industry will bring in the future are also discussed.

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Section: Materials and Architecture Design Of Fiber Shaped Lighting Dmentioning

confidence: 99%

Recent Progress of Fiber Shaped Lighting Devices for Smart Display Applications—A Fibertronic Perspective

et al. 2019

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“…First, to make the RS, a silica (SiO 2 ) nanoparticle solution that is used in research to improve out-coupling through the curved structure in OLEDs [2,3] was centrifuged four times (17,000 rpm, 10 min) to remove the silica NPs. The mixture of ZnO NP solution with RS (ZRS) was then created by mixing the two solutions with relative volume ratio, and its characteristics were analyzed by TEM, XRD, and XPS.…”

Section: Resultsmentioning

confidence: 99%

P‐110: Efficient Quantum Dot Light‐Emitting Diodes by Reducing Oxygen Vacancies of ZnO Nanoparticles with Recycling Process

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et al. 2019

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A recycling process was easily carried out with just centrifugation to reduce the number of surface defects of ZnO nanoparticles, which are widely used as the electron transport layer in quantum dot light-emitting diodes. The proposed process was successfully applied to improve device efficiency. Therefore, the results demonstrate that this new method has good potential to reduce waste material and improve material properties.

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“…Therefore, the strategy of optimizing the CTL and maximizing the light extraction has been widely used in OLEDs. [ 117–119 ] Moreover, the same strategy has been applied to PeLEDs. Shen et al.…”

Section: Intrinsic Limitations Of Perovskites As a Light‐emitting Matmentioning

confidence: 99%

Multifunctional Charge Transporting Materials for Perovskite Light‐Emitting Diodes

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as a Postdoc (2007-2009). His main research fields are organic/polymeric materials and organic/metal-halideperovskite-based optoelectronic devices. Han Young Woo received his Ph.D. degree in chemistry from KAIST, Republic of Korea in 1999. After postdoctoral training at University of California, Santa Barbara, USA, he joined the Pusan National University, Republic of Korea, as an assistant professor. In 2015, he moved to Korea University and he is currently a professor in the Department of Chemistry, Korea University. His current researches focus on conjugated polymers and polyelectrolytes for applications in organic optoelectronic devices.

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Nanosinusoidal Surface Zinc Oxide for Optical Out-coupling of Inverted Organic Light-Emitting Diodes

Cited by 16 publications

References 39 publications

Recent Progress of Fiber Shaped Lighting Devices for Smart Display Applications—A Fibertronic Perspective

Recent Progress of Fiber Shaped Lighting Devices for Smart Display Applications—A Fibertronic Perspective

P‐110: Efficient Quantum Dot Light‐Emitting Diodes by Reducing Oxygen Vacancies of ZnO Nanoparticles with Recycling Process

Multifunctional Charge Transporting Materials for Perovskite Light‐Emitting Diodes

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