Results 51 to 60 of about 157,666 (280)

Transfer printed multi-color integrated devices for visible light communication applications [PDF]

, 2016
Integrated multi-color devices for visible light communication applications are fabricated by transfer printing blue-emitting GaN light emitting diodes (LEDs) onto a green-emitting LED array and a colloidal quantum dot color-converter ...
Dawson, M.D., Ferreira, R., Foucher, C., Gu, E., Guilhabert, B., Humphreys, C.J., Laurand, N., Oliver, R.A., Rae, K., Wallis, D.J., Xie, E., Zhu, D.   +11 more
core   +1 more source

Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)

Advanced Functional Materials, EarlyView.
Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao, Christian Weinberger, Jakob Steube, Matthias Bauer, Martin Brehm, Michael Tiemann   +5 more
wiley   +1 more source

Current-Voltage Characteristics of Polymer Light-Emitting Diodes

, 1997
Conduction in pristine conjugated polymers (other than polyacetylene) is by polaron hopping between sites corresponding to conjugation lengths. The strong increase of current $I$ with voltage $V$ observed for both emission-limited and ohmic contacts is ...
Conwell, E. M., Wu, M. W.
core   +1 more source

Coupled surface plasmon-polariton mediated photoluminescence from a top-emitting organic light-emitting structure [PDF]

, 2013
Copyright © 2004 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.
Barnes, William L., Sage, I., Wasey, J. A. E., Wedge, S.   +3 more
core   +1 more source

Band Alignment in In‐Oxo Metal Porphyrin SURMOF Heterojunctions

Advanced Functional Materials, EarlyView.
Porphyrin core metalation in indium‑oxo SURMOFs enables systematic tuning of band edge positions without altering the crystal structure. First‑principles calculations reveal type‑I and type‑II heterostructures as well as multi‑junction energy cascades, establishing a modular strategy for exciton funneling and charge separation in optoelectronic ...
Puja Singhvi, Nina Vankova, Thomas Heine
wiley   +1 more source

Sequential layer-by-layer deposition for high-performance fully thermal-evaporated red perovskite light-emitting diodes

Nature Communications
Thermal-evaporated perovskite light-emitting diodes are highly promising for future display and lighting. However, multi-source co-evaporation faces challenges such as difficulty in regulating crystallinity, especially for red perovskite light-emitting ...
Yajing Li, Na Meng, Yutian Xu, Bufan Yu, Junhao Liu, Yuanhao Cui, Ziqiang Wang, Xinwu Ke, Tengfei Pan, Xue Min, Jiangshan Chen, Dongge Ma, Lingfeng Chao, Zhelu Hu, Yingdong Xia, Qingxun Guo, Yonghua Chen, Wei Huang   +17 more
doaj   +1 more source

Dual-color emitting quantum-dot-quantum-well CdSe-ZnS heteronanocrystals hybridized on InGaN/GaN light emitting diodes for high-quality white light generation [PDF]

, 2008
Cataloged from PDF version of article.We report white light generation by hybridizing green-red emitting (CdSe)ZnS/CdSe (core)shell/shell quantum-dot-quantum-well heteronanocrystals on blue InGaN/GaN light emitting diodes with the photometric properties ...
Demir, H. V., Eychmuller, A., Gaponik, N., Mutlugun, E., Nizamoglu, S., Ozel, T., Sapra, S.   +6 more
core   +1 more source

MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance

Advanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley   +1 more source

DEEP ULTRAVIOLET LIGHT EMITTING DIODES (DUV LEDS) [PDF]

Journal of Engineering Science (Chişinău), 2018
There are a variety of applications for devices that extend into the deep-UV, including biological agent detection and optical storage. The nitride material system is a set of semiconducting compounds that have wavelengths that span a broad ...
Băjenescu, Titu-Marius I.
doaj   +1 more source

Modeling Light-Extraction Characteristics of Packaged Light-Emitting Diodes [PDF]

, 1998
We employ a Monte Carlo ray-tracing technique to model light-extraction characteristics of light-emitting diodes. By relaxing restrictive assumptions on photon traversal history, our method improves upon available analytical models for estimating light ...
McGill, T. C., Ting, D. Z.-Y.
core