Results 11 to 20 of about 148,101 (342)

Coherently strained and dislocation‐free architectured AlGaN/GaN submicron‐sized structures

open access: yesNano Select, 2022
To improve the performance and efficiency of Al containing III‐Nitride‐based devices, a number of issues must be addressed, especially the presence and generation of dislocations and other structural defects.
Maryam Khalilian   +10 more
doaj   +1 more source

Optoelectronic Reservoir Computing [PDF]

open access: yesScientific Reports, 2012
Reservoir computing is a recently introduced, highly efficient bio-inspired approach for processing time dependent data. The basic scheme of reservoir computing consists of a non linear recurrent dynamical system coupled to a single input layer and a single output layer. Within these constraints many implementations are possible. Here we report an opto-
Paquot, Yvan   +6 more
openaire   +8 more sources

The speed limit of optoelectronics

open access: yesNature Communications, 2022
AbstractLight-field driven charge motion links semiconductor technology to electric fields with attosecond temporal control. Motivated by ultimate-speed electron-based signal processing, strong-field excitation has been identified viable for the ultrafast manipulation of a solid’s electronic properties but found to evoke perplexing post-excitation ...
M. Ossiander   +17 more
openaire   +5 more sources

Heteroepitaxial growth of ZnO branches selectively on TiO2 nanorod tips with improved light harvesting performance [PDF]

open access: yes, 2011
A seeded heteroepitaxial growth of ZnO nanorods selectively on TiO2 nanorod tips was achieved by restricting crystal growth on highly hydrophobic TiO2 nanorod film surfaces.
Gai, Lili   +4 more
core   +1 more source

Moiré photonics and optoelectronics

open access: yesScience, 2023
Moiré superlattices, the artificial quantum materials, have provided a wide range of possibilities for the exploration of completely new physics and device architectures. In this Review, we focus on the recent progress on emerging moiré photonics and optoelectronics, including but not limited to moiré excitons, trions, and polaritons; resonantly ...
Du, Luojun   +5 more
openaire   +5 more sources

Control of Intrinsic Defects in Lithium Niobate Single Crystal for Optoelectronic Applications

open access: yesCrystals, 2017
A single crystal of lithium niobate is an important optoelectronic material. It can be grown from direct melt only in a lithium deficient non-stoichiometric form as its stoichiometric composition exhibits incongruent melting.
Rajeev Bhatt   +6 more
doaj   +1 more source

Design, Characterization and Analysis of a 0.35 μm CMOS SPAD

open access: yesSensors, 2014
Most of the works about single-photon detectors rely on Single Photon Avalanche Diodes (SPADs) designed with dedicated technological processes in order to achieve single-photon sensitivity and excellent timing resolution.
Khalil Jradi   +2 more
doaj   +1 more source

CSA Doped Poly(aniline-co-o-toluidine) and Dispersed Zinc Oxide Nanoparticles: a Promising Material for Photovoltaics [PDF]

open access: yesMaterials Research, 2015
Copolymerization of aniline and o-toluidine is achieved by chemical oxidative polymerization with equal molar ratio of monomers in the presence of hydrochloric acid and ammonium persulphate as an oxidant.
Arunachalam Mahudeswaran   +4 more
doaj   +1 more source

S,N-Heteropentacenes – Syntheses of Electron-Rich Anellated Pentacycles

open access: yesOrganic Materials, 2021
This review summarizes syntheses of S,N-heteropentacenes, i.e. electron-rich sulfur and nitrogen-embedding pentacycles, and briefly highlights selected applications in molecular electronics. Depending on the anellation mode and the number of incorporated
Henning R. V. Berens   +1 more
doaj   +1 more source

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