Results 71 to 80 of about 72,519 (283)

Optical anisotropy and light outcoupling in OLEDs [PDF]

, 2014
Organic Light Emitting Diodes consist of a stack of thin layers that have a high refractive index and may have anisotropic optical properties. The emission from such a planar structure depends on the layering of the OLED, the anisotropy of the different ...
Callens, Michiel, Chesterman, Frédérique, De Visschere, Patrick, Neyts, Kristiaan, Penninck, Lieven   +4 more
core  

All‐Aqueous Pullulan Fibers Enabling Visible‐to‐Near‐Infrared Waveguiding with Mechanical and Thermal Resilience

Advanced Functional Materials, EarlyView.
Pullulan, a biomass‐derived polysaccharide, is transformed into transparent optical fibers using a solvent‐free borax hydrogel‐spinning method. The fibers outperform PMMA with ≈200 MPa tensile strength and 200 °C stability, while uniquely guiding visible‐to‐NIR light and enabling additive‐free humidity sensing.
Yuya Fukata, Aayush Kumar Jaiswal, Ari Hokkanen, Hannes Orelma, Tadahisa Iwata   +4 more
wiley   +1 more source

Carrier Modulation Layer-Enhanced Organic Light-Emitting Diodes

Molecules, 2015
Organic light-emitting diode (OLED)-based display products have already emerged in the market and their efficiencies and lifetimes are sound at the comparatively low required luminance.
Jwo-Huei Jou, Sudhir Kumar, Meenu Singh, Yi-Hong Chen, Chung-Chia Chen, Meng-Ting Lee   +5 more
doaj   +1 more source

Ambient fabrication of flexible and large-area organic light-emitting devices using slot-die coating [PDF]

, 2012
The grand vision of manufacturing large-area emissive devices with low-cost roll-to-roll coating methods, akin to how newspapers are produced, appeared with the emergence of the organic light-emitting diode about 20 years ago.
A Sandstrom, CW Tang, D-Y Chung, DA Pardo, F So, FC Krebs, FC Krebs, FC Krebs, FP Wenzl, G Mauthner, H Becker, H Nakjima, HF Dam, HL Filiatrault, J Birnstock, J Fang, JH Burroughes, JR Sheats, JS Park, M Lenes, M Suzuki, P Matyba, P Matyba, P Matyba, QB Pei, RD Costa, S Reineke, S Tang, S-C Chang, TR Hebner, Y Shao, Y Yang, YR Sun, Z Yu, ZB Yu, ZB Yu   +35 more
core   +1 more source

Suppression of Photo‐Mediated Traps in Integrated Organic Photovoltaic–Photodetector Devices via N‐Type Self‐Assembly‐Driven Interfacial Engineering

Advanced Functional Materials, EarlyView.
Conventional unstable electron transport layers (ETLs) limit self‐powered organic sensors. This work resolves this by developing a n‐type self‐assembled monolayer (SAM), “3‐PAPh”. This SAM forms a chemically stable and structurally ordered interface that fundamentally suppresses defect formation.
Ohhyun Kwon, Jae Hoon Son, Tae Hyuk Kim, Gyeong Min Lee, Seunghyun Oh, Gayoung Ham, Min Jong Lee, Sang Heon Lee, Seon Joong Kim, Hyojung Cha, Han Young Woo, Jae Won Shim   +11 more
wiley   +1 more source

Numerical investigation of a 2D-grating for light extraction of a bottom emitting OLED [PDF]

, 2006
An important limiting factor for efficient white light emitting organic LEDs is the total internal reflection occurring at each interface. In a bottom emitting OLED light is trapped by reflection at the interface between the organic layers and glass ...
Baets, Roel, Bienstman, Peter, Van Buggenhout, Carl, Vandersteegen, Peter   +3 more
core   +3 more sources

Multipurpose Transparent Nanocomposites for Gamma Spectroscopy, Pulse Shape Discrimination, Thermal Neutron Detection, Radiation Shielding, and High Refractive Index Applications

Advanced Functional Materials, EarlyView.
Materials exist that are useful for gamma scintillation, radiation shielding, neutron‐gamma pulse shape discrimination (PSD), thermal neutron detection, or high refractive index applications. While certain materials have exhibited optimal performance for each of these applications, none achieve multiple functions.
Isabelle Winardi, Stephane Miaule, Robert Carmichael, Bowen Sun, Ziqing Han, Prabhav Surabhi, Zhen Luo, Noelan Hum, David Prout, Yi‐An Chen, Ting‐Hsuan Wu, Hao Yu, Arion Chatziioannou, Qibing Pei   +13 more
wiley   +1 more source

Efficient and bright warm-white electroluminescence from lead-free metal halides

Nature Communications, 2021
Designing efficient light-emitting diodes with white-light-emission from broadband-emission metal halides remains a challenge. Here, the authors demonstrate bright and efficient lead-free LEDs based on cesium copper halides enabled by introducing Tween ...
Hong Chen, Lin Zhu, Chen Xue, Pinlei Liu, Xuerong Du, Kaichuan Wen, Hao Zhang, Lei Xu, Chensheng Xiang, Chen Lin, Minchao Qin, Jing Zhang, Tao Jiang, Chang Yi, Lu Cheng, Chenglong Zhang, Pinghui Yang, Meiling Niu, Wenjie Xu, Jingya Lai, Yu Cao, Jin Chang, He Tian, Yizheng Jin, Xinhui Lu, Lang Jiang, Nana Wang, Wei Huang, Jianpu Wang   +28 more
doaj   +1 more source

1.54 mu m electroluminescence from erbium (III) tris(8-hydroxyquinoline) (ErQ)-based organic light-emitting diodes [PDF]

, 1999
Copyright 1999 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
Curry, RJ, Gillin, WP
core   +1 more source

Ultrastable Photoactive Halide Perovskite Nanocrystal‐Sensitized SnO2 Nanorods for Room‐Temperature NO2 Detection

Advanced Functional Materials, EarlyView.
ABSTRACT Metal oxide (MOx)‐based NO2 gas sensors typically require high temperatures or ultraviolet light, limiting their practical use. To enable visible‐light activation at room temperature, efficient and stable photosensitizers should be integrated with nanostructured MOx hosts.
Yeonji Yuk, Dokyum Kim, Jun‐Cheol Park, Yoonsung Jung, Inhyeok Oh, Donghyeon Lee, Yejoon Kim, Ji‐Eun Yeo, Young Min Song, Chang‐Lyoul Lee, Sanghan Lee   +10 more
wiley   +1 more source