Abstract While recent research has shown that holographic displays can represent photorealistic 3D holograms in real time, the difficulty acquiring high-quality real-world limited realization of streaming systems. Incoherent cameras, which record under daylight conditions, are suitable candidates for acquisition, as they prevent safety issues associated with use lasers; however, these cameras hindered by severe noise due to optical imperfections such In this work, we develop a deep...

Abstract Organic semiconductors (OSCs) have been widely studied due to their merits such as mechanical flexibility, solution processability, and large‐area fabrication. However, OSC devices still overcome contact resistance issues for better performances. Because of the Schottky at metal–OSC interfaces, a non‐ideal transfer curve feature often appears in low‐drain voltage region. To improve properties OSCs, there several methods reported, including interface treatment by self‐assembled...

We investigated the trap-mediated electronic transport properties of pentacene/molybdenum disulphide (MoS2) p-n heterojunction devices. observed that hybrid heterojunctions were gate-tunable and strongly affected by trap-assisted tunnelling through van der Waals gap at interfaces between MoS2 pentacene. The pentacene/MoS2 diodes had high ideality factor, which resulted from conduction nature From temperature-variable current-voltage measurement, a space-charge-limited variable range hopping...

BACKGROUND Peri-operative hypothermia and shivering are frequent events in patients during caesarean delivery under spinal anaesthesia. OBJECTIVE We assessed the efficacy of combined pre-anaesthetic forced-air warming combination with warmed intravenous fluid infusion for preventing DESIGN A randomised controlled study. SETTING tertiary care teaching hospital from July 2017 to April 2018. PATIENTS total 50 pregnant women, American Society Anaesthesiologists physical status 2, aged 20 45...

Abstract In organic device applications, a high contact resistance between metal electrodes and semiconductors prevents an efficient charge injection extraction, which fundamentally limits the performance. Recently, various doping methods have been reported as effective way to resolve problem. However, has not explored extensively in field effect transistors (OFETs) due dopant diffusion problem, significantly degrades stability by damaging ON/OFF switching Here, of method is improved...

One of the long-standing problems in field organic electronics is their instability an open environment, especially poor water resistance. For reliable operation devices, introducing effective protection layer using organo-compatible materials and processes highly desirable. Here, we report a facile method for depositing superhydrophobic on semiconductors under ambient conditions. The exhibiting excellent water-repellent self-cleaning properties was deposited onto directly dip-coating...

We studied noise characteristics of a nanocomposite polyimide (PI) and phenyl-C61-butyric acid methyl ester (PCBM) (denoted as PI:PCBM), composite for the organic nonvolatile resistive memory material. The current fluctuations were investigated over bias range that covers various intermediate states negative differential resistance (NDR) in unipolar devices. From analysis 1/f(γ) type noises, scaling behavior between relative power spectral density S̃ R was observed, indicating percolating...

Three-dimensional (3D) images reconstructed by integral imaging display are captured as a complex hologram using self-interference incoherent digital holography (SIDH) and analyzed for the volumetric image characteristics. The integrated can present 3D perception through not only binocular disparity but also property, which is represented in forming volume picture element, called 'voxel', an important criterion to distinguish from multiview display. Since SIDH record under lighting...

We propose a holographic stereogram synthesis method which uses holograms that are optically captured by self-interference incoherent digital holography (SIDH) based on geometric phase lens. SIDH is promising solution for hologram acquisition under low-coherence lighting condition. A mechanical scanning system constructed to acquire multiple perspective holograms. Numerical simulations and experimental analyses conducted using high-resolution diffractive optical element demonstrate the...

The energy consumption during the operation of organic nonvolatile memory devices fabricated on a flexible polyethylene naphthalate (PEN) substrate is investigated. For bistable resistive devices, applied external voltage and time are essential factors for switching cell from OFF to ON state because amounts determine needed set cell. Using composite material polyimide (PI) [6,6]‐phenyl‐C 61 butyric acid methyl ester (PCBM) as active layer PEN substrate, unipolar behavior good electrical...

Abstract Structural colors generated by optical micro‐ or nanostructures have attracted much attention for replacing pigment due to their tunability and semipermanency. The advantages of structural are now ready be extended the spectral range outside that visible wavelengths. Here, bright demonstrated in near‐ultraviolet (near‐UV) wavelength based on plasmonic resonance an aluminum nanodisk array. Collective oscillation nanodisks selectively reflects near‐UV light with a high reflectance...

Abstract Conventional solution-processing techniques such as the spin-coating method have been used successfully to reveal excellent properties of organic–inorganic halide perovskites (OHPs) for optoelectronic devices solar cell and light-emitting diode, but it is essential explore other deposition compatible with large-scale production. Single-source flash evaporation technique, in which a single source materials interest rapidly heated be deposited few seconds, one candidate thin film...

The demand for large-area, high-quality synthesis of graphene with chemical vapor deposition (CVD) has increased the realization next-generation transparent and flexible optoelectronic applications. In conventional CVD processes, various parameters can strongly affect quality resultant graphene. particular, surface engineering a copper catalyst substrate is one most promising pathways achieving excellent reproducibility. For this purpose, simple wet etching without toxic fume byproducts or...

Nonvolatile memory devices based on unipolar resistive switching in a solution-processed organo-metal halide perovskite are reported by Keehoon Kang, Takhee Lee, and co-workers article number 1804841. A facile synthesis of the layer with nonhalide precursor allows reliable fabrication high-yield cross-bar array desirable ON/OFF ratio electrical stability, which can potentially open solution-processing route for realizing high-density random-access devices.

We fabricated non-volatile resistive memory devices on a commercially available flexible paper substrate using physical vapor deposition methods in all of the fabrication steps. By only evaporable component materials including aluminum oxide (Al2O3) and metal electrodes, it has become possible to constitute vertical stacking Al2O3 active layer structure with electrodes without wet or crumpled damage substrate. The showed typical unipolar switching characteristic excellent electrical...

Abstract Organic materials and devices have attracted great attention for implementation of flexible transparent electronics applications. However, further easy‐to‐manage organic with acceptable environmental reliability in open air are desirable. Specifically, because water‐based threats particle contamination can degrade the functions optoelectronics, introducing a superhydrophobic protection layer onto devices, which eliminate issues via excellent water repellency, is necessary. In this...

We propose a compressive self-interference incoherent digital holography (SIDH) with geometric phase metalens for section-wise holographic object reconstruction. specify the details of SIDH design that covers visible wavelength band, analyze spatial distortion problem in and address process reconstruction analytic calibration. The allows us to realize system band using an image sensor relatively low bandwidth. operation proposed is verified through numerical simulations.

Time-dependent resistive switching of organic unipolar memory devices is investigated by Keehoon Kang, Takhee Lee, and co-workers in article number 1801162. Real-time current tracing under constant voltage stress reveals a stepwise increase. This increase reflects the formation well-connected paths which develop into percolation network. Statistically analyzing time made various materials common probabilistic nature turn-on process.

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Applying the Host‐Dopant System to organic color conversion layers (OCCL) has resulted in a high efficiency CCE) compared previous commercial methods. The OCCL exhibited an impressive CCE of 123.1%, surpassing that quantum dot (QD) layer by 61.3%. Furthermore, we observed viewing angle characteristics blue top‐emission light emitting diodes (OLED) with was significantly improved due their corrugated surface pristine OLED.

Pixel aliasing method is proposed to increase the resolution of multiview 3D display. where deterioration image occurs due producing multiple directional images with limited display resolution. To overcome limitations discrete voxels, we rearrange pixels by using resizing technique and interpolation enhance We demonstrate in both depth horizontal directions.

We propose deep learning‐enhanced self‐interference incoherent digital holography. Self‐interference holography is a hologram acquisition technique under the light condition, which can capture real‐world complex hologram. To overcome unwanted optical defects of self‐interference, we suggest data‐driven approach for reducing additional noise and enhancing image quality.

We proposed the resolution enhancement of self-interference incoherent digital holography using sparse acquisition. Stochastic gradient descent-based optimization is exploited to find and refine absent holographic signals.