My watch list  

633 Newest Publications about the topic leds


You can refine your search further. Select from the filter options on the left to narrow down your results.

Multispectral optical imaging combined in situ with XPS or ToFSIMS and principal component analysis

20-May-2016 | Peter J. Cumpson, Ian W. Fletcher, Richard Burnett, Naoko Sano, Anders J. Barlow, Jose F. Portoles, Lisa W. Li, Andr ..., Surface and Interface Analysis, 2016

All X‐ray photoelectron spectroscopy (XPS) and time‐of‐flight secondary ion mass spectrometry (ToF‐SIMS) instruments have optical cameras to image the specimen under analysis, and often to image the sample holder as it enters the system too. These cameras help the user find the appropriate ...


A novel apatite, Lu5(SiO4)3N:(Ce,Tb), phosphor material: synthesis, structure and applications for NUV-LEDs

18-May-2016 | Qingfeng Guo; Qidi Wang; Liwei Jiang; Libing Liao; Haikun Liu; Lefu Mei, Physical Chemistry Chemical Physics, 2016

The lutetium containing nitride apatite Lu5(SiO4)3N was prepared by a solid state reaction at high temperature for the first time. Rietveld refinement indicated that the Lu5(SiO4)3N compound has a hexagonal space group of P63/m with cell parameters a = b = 9.700 Å and c = 7.238 Å. Additionally, ...


Dual roles for promoting monomers to polymers: A conjugated sulfonium salt photoacid generator as photoinitiator and photosensitizer in cationic photopolymerization

17-May-2016 | Ming Jin, Xingyu Wu, Jean Pierre Malval, Decheng Wan, Hongting Pu, Journal of Polymer Science Part A: Polymer Chemistry, 2016

ABSTRACT An efficient strategy for comprehensive utilization of the conjugated sulfonium salt photoacid generator (PAG), namely, 3‐{4‐[4‐(4‐N,N′‐diphenylamino)‐styryl]phenyl}phenyl dimethyl sulfonium hexafluoroantimonate, was developed through photoinitiated cationic photopolymerization (CP) ...


Toward defect‐free semi‐polar GaN templates on pre‐structured sapphire (Phys. Status Solidi B 5/2016)

06-May-2016 | Yisong Han, Marian Caliebe, Fredrik Hage, Quentin Ramasse, Markus Pristovsek, Tongtong Zhu, Ferdinand Scholz, Colin ..., physica status solidi (b), 2016

There is a need for large‐size, cost‐effective and high‐quality semi‐polar GaN templates for the development of semi‐polar GaN based light emitting diodes (LEDs), which are promising to give an increased light emitting efficiency. As one of the approaches, semi‐polar templates have been ...


Effect of electron blocking layers on the conduction and valence band profiles of InGaN/GaN LEDs

02-May-2016 | Simon Hammersley, Phil Dawson, Menno J. Kappers, Fabien C.‐P. Massabuau, Martin Frentrup, Rachel A. Oliver, Colin J. ..., physica status solidi (c), 2016

Abstract In this paper we investigate the effect of including an electron blocking layer between the quantum well active region and the p‐type layers of a light emitting diode has on the conduction and valence band profile of a light emitting diode. Two light emitting diode structures with ...


All‐Inorganic Perovskite Nanocrystals for High‐Efficiency Light Emitting Diodes: Dual‐Phase CsPbBr3‐CsPb2Br5 Composites

26-Apr-2016 | Xiaoli Zhang, Bing Xu, Jinbao Zhang, Yuan Gao, Yuanjin Zheng, Kai Wang, Xiao Wei Sun, Advanced Functional Materials, 2016

A dual‐phase all‐inorganic composite CsPbBr3‐CsPb2Br5 is developed and applied as the emitting layer in LEDs, which exhibited a maximum luminance of 3853 cd m–2, with current density (CE) of ≈8.98 cd A–1 and external quantum efficiency (EQE) of ≈2.21%, respectively. The parasite of secondary ...


Efficient yellow and green emitting InGaN/GaN nanostructured QW materials and LEDs

25-Apr-2016 | Yoshitake Nakajima, Yenting Lin, Paul Daniel Dapkus, physica status solidi (a), 2016

Efficient green emitting LEDs and monolithic white light emitting LEDs require the extension of the range of efficient light emission in the GaN/InGaN materials system. We demonstrate high efficiency green and yellow light emitting multiple quantum well (MQW) structures grown on GaN nanostripe ...


Polymer-Free Films of Inorganic Halide Perovskite Nanocrystals as UV-to-White Color-Conversion Layers in LEDs

25-Apr-2016 | Francisco Palazon; Francesco Di Stasio; Quinten A. Akkerman; Roman Krahne; Mirko Prato; Liberato Manna, Chemistry of Materials, 2016

Chemistry of Materials DOI: 10.1021/acs.chemmater.6b00954


Multilayer Transfer Printing for Pixelated, Multicolor Quantum Dot Light-Emitting Diodes

21-Apr-2016 | Bong Hoon Kim; Sooji Nam; Nuri Oh; Seong-Yong Cho; Ki Jun Yu; Chi Hwan Lee; Jieqian Zhang; Kishori Deshpande; Peter ..., ACS Nano, 2016

Here, we report multilayer stacking of films of quantum dots (QDs) for the purpose of tailoring the energy band alignment between charge transport layers and light emitting layers of different color in quantum dot light-emitting diodes (QD LED) for maximum efficiency in full color operation. The ...


Aromatic C–H Activation in the Triplet Excited State of Cyclometalated Platinum(II) Complexes Using Visible Light

18-Apr-2016 | Fabio Juliá; Pablo González-Herrero, Journal of the American Chemical Society, 2016

The visible-light driven cyclometalation of arene substrates containing an N-donor heteroaromatic moiety as directing group by monocyclometalated Pt(II) complexes is reported. Precursors of the type [PtMe(C^N)(N^CH)], where N^CH is 2-phenylpyridine (ppyH) or related compunds with diverse ...


Page 1 From 64
Subscribe to e-mail updates relating to your search

You will receive via e-mail the latest search results matching your search criteria. This service is free of charge and can be cancelled at any time.

Your browser is not current. Microsoft Internet Explorer 6.0 does not support some functions on Chemie.DE