Results 241 to 250 of about 515,552 (301)

Green and Scalable Synthesis of Efficient and Stable CsPbBr3 Perovskite Quantum Dots Enables Low‐Threshold Amplified Spontaneous Emission

Advanced Science, EarlyView.
Green and scalable synthesis of CsPbBr3 perovskite quantum dots using bio‐sourced lecithin and hexane enables single‐batch production over 10 grams. Suppressed Auger recombination and electron‐phonon coupling yields 95% PLQY, enhanced stability, and low ASE thresholds of 230.4 (ns) and 50.1 (fs) µJ cm−2 in neat films. ABSTRACT Halide perovskite quantum
Yongfeng Liu, Mengting Zhang, Qingyu Xie, Kehao Hu, Bowen Zhang, Zhe Zhang, Jie Yang, Zhiping Hu, Juan Du, Jia Wang, Min Zhou   +10 more
wiley   +1 more source

Anomalous Nonlinear Optical Effects by Intensity-Dependent Phase-Variation Compensation in Photonic Crystals Containing Hyperbolic Metamaterials. [PDF]

Nanomaterials (Basel)
Yu X, Qin H, Li J, Chen H, Li X, Liu F, Wang T, Lu G, Du G.   +8 more
europepmc   +1 more source

Single‐Atom‐Enhanced Fully Inkjet‐Printed Electrochemical Sensor for Dopamine Detection

Advanced Science, EarlyView.
Fully inkjet‐printed paper‐based dopamine sensors are fabricated using nitrogen‐doped graphene acid functionalized with copper single atoms. The copper sites uniquely enhance dopamine oxidation through strong molecular adsorption, as verified by electrochemical measurements and DFT calculations. The approach highlights the potential of single‐atom inks
Martin‐Alex Nalepa, David Panáček, Vítězslav Hrubý, Matěj Jendrišák, Rostislav Langer, Michal Langer, Petr Jakubec, Ivan Dědek, Vojtěch Kupka, Michal Mazur, Radek Zbořil, Michal Otyepka   +11 more
wiley   +1 more source

Dip-Coating Fabrication of All-Polymer Multilayer Photonic Crystals through 3D Printer Conversion. [PDF]

ACS Appl Polym Mater
Martusciello M, Hervieu C, Di Fonzo D, Lanfranchi A, Lova P, Comoretto D.   +5 more
europepmc   +1 more source

Defect engineering in organic semiconductor based metal-dielectric photonic crystals. [PDF]

Sci Rep
Thakuri KS, Cleary T, Allemeier D, Kimura T, Aizawa N, Nakayama KI, Masuhara A, White MS.   +7 more
europepmc   +1 more source

Inverse design in photonic crystals. [PDF]

Nanophotonics
Deng R, Liu W, Shi L.
europepmc   +1 more source

Switchable 3D Photonic Crystals Based on the Insulator-to-Metal Transition in VO₂. [PDF]

ACS Appl Mater Interfaces
Peng J, Brandt J, Pfeiffer M, G Maragno L, Krekeler T, T James N, Henf J, Heyn C, Ritter M, Eich M, Petrov AY, P Furlan K, Blick RH, Zierold R.   +13 more
europepmc   +1 more source

High-Quality GaP(111) Grown by Gas-Source MBE for Photonic Crystals and Advanced Nonlinear Optical Applications. [PDF]

Nanomaterials (Basel)
Hestroffer K, Rivoire K, Vučković J, Hatami F.   +3 more
europepmc   +1 more source

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Responsive Photonic Crystals

Angewandte Chemie - International Edition, 2011
AbstractThis Review summarizes recent developments in the field of responsive photonic crystal structures, including principles for design and fabrication and many strategies for applications, for example as optical switches or chemical and biological sensors.
Jianping Ge, Yadong Yin
exaly   +3 more sources

Photonic Crystal Devices in Silicon Photonics

Proceedings of the IEEE, 2018
In this paper, we review the history of 2-D photonic crystal slabs with a focus on point-defect cavities that can simultaneously realize ultrasmall modal volumes and ultrahigh quality factors. An important design concept to suppress radiation loss is introduced: the envelope of the cavity mode field should have no abrupt changes and should ideally ...
Takashi Asano 0001, Susumu Noda
openaire   +2 more sources