Results 101 to 110 of about 634,808 (333)

Recent progress in the device architecture of white quantum-dot light-emitting diodes

Journal of Information Display, 2019
White-light-emission quantum dot light-emitting diodes (WQLEDs) have attracted great attention of late because they could have potential applications in both flat-panel displays and solid-state lighting due to their advantages of tunable emission spectra,
Heng Zhang, Qiang Su, Shuming Chen
doaj   +1 more source

A new super-soft X-ray source in the Small Magellanic Cloud: Discovery of the first Be/white dwarf system in the SMC?

, 2011
The Small Magellanic Cloud (SMC) hosts a large number of Be/X-ray binaries, however no Be/white dwarf system is known so far, although population synthesis calculations predict that they might be more frequent than Be/neutron star systems.
Coe, M. J., Haberl, F., La Palombara, N., Mereghetti, S., Owen, R. A., Pietsch, W., Sturm, R., Udalski, A.   +7 more
core   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Precision optical model of asymmetry emission band of red light emitting diodes and its application in improving the color rendering index of white LEDs

Results in Optics
We have proposed and demonstrated a precision optical model for red light-emitting diodes and applied this model to improve the color rendering index of phosphor-converted white light-emitting diodes.
Thi-Hanh-Thu Vu, Quang-Khoi Nguyen
doaj   +1 more source

Synthesis and tunable luminescent properties of Eu-doped Ca2NaSiO4F – Coexistence of the Eu2+ and Eu3+ centers

Results in Physics, 2016
Novel phosphors Ca2NaSiO4F:Eu were synthesized successfully by the conventional solid-state method in CO atmosphere, and their spectroscopic properties in UV−vis region were investigated.
Mubiao Xie, Dongyu Li, Guoxian Zhu, Rongkai Pan, Xionghui Fu   +4 more
doaj   +1 more source

Tailored Broad‐Spectrum Emission in Hybrid Aggregation Induced Emission (AIE)‐MOFs: Boosting White Light Efficiency in Electrospun Janus Microfibers [PDF]

, 2023
Vishal Kachwal, Samraj Mollick, Jin‐Chong Tan   +2 more
openalex   +1 more source

Dual‐Mode Film Based on Highly Scattering Nanofibers and Upcycled Chips‐Bags for Year‐Round Thermal Management

Advanced Functional Materials, EarlyView.
Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song, Stefan Rettinger, Chengzhang Xu, Ulrich Mansfeld, Markus Retsch   +4 more
wiley   +1 more source

Vacuum field energy and spontaneous emission in anomalously dispersive cavities

, 2010
Anomalously dispersive cavities, particularly white light cavities, may have larger bandwidth to finesse ratios than their normally dispersive counterparts.
Douglas H. Bradshaw, J. D. Jackson, L. D. Landau, Michael D. Di Rosa, R. Chiao   +4 more
core   +1 more source

Solvent regulation synthesis of single-component white emission carbon quantum dots for white light-emitting diodes [PDF]

, 2021
Longshi Rao, Qing Zhang, Mingfu Wen, Zhongfa Mao, Huaxian Wei, Hanjui Chang, Xiaodong Niu   +6 more
openalex   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source