Results 151 to 160 of about 355,581 (296)

Investigating Dopant Effects in ZnO as an Electron Transport Layer for Enhanced Efficiency in Organic Photovoltaics

Advanced Materials Interfaces, EarlyView.
By doping the elements with different numbers of valence electrons (Al3+ and Sn4+ ions) into the ZnO matrix, device conversion efficiencies of 8.69% and 9.21%, respectively, are achieved. The ultrafast time‐resolved studies show that the elevated carrier concentration in Sn‐doped ZnO, in comparison with Al‐doped ZnO and un‐doped ZnO, plays a ...
Anusha Puliparambil Thilakan, Pei‐Lun Hung, Jin‐Bin Yang, Ding‐Lun Lin, Shien‐Der Tzeng, Yu‐Kuei Hsu, Chih‐Hung Tsai, Yi‐Hao Pai, Atshushi Yabushita, Chih‐Wei Luo, Mei‐Hsin Chen   +10 more
wiley   +1 more source

Advancement in Colloidal Metasurfaces: Approaches for Scalable Photonic Devices

Advanced Materials Interfaces, EarlyView.
This perspective explores colloidal metasurfaces composed of plasmonic and emitting nanoparticles assembled by laser interference lithography and template‐assisted self‐assembly methods. Precise design strategies achieve directional emission, low‐threshold lasing, and tunable photonic bandgaps.
Sezer Seçkin, Swagato Sarkar, Tobias A.F. König   +2 more
wiley   +1 more source

Integrated thermo-optic phase shifters for laser-written photonic circuits operating at cryogenic temperatures

JPhys Photonics
Integrated photonics offers compact and stable manipulation of optical signals in miniaturized chips, with the possibility of changing dynamically their functionality by means of integrated phase shifters. Cryogenic operation of these devices is becoming
Francesco Ceccarelli, Jelena V Rakonjac, Samuele Grandi, Hugues de Riedmatten, Roberto Osellame, Giacomo Corrielli   +5 more
doaj   +1 more source

Organic Ferroelectric Synaptic Transistors for Neural Image Recognition Networks

Advanced Materials Interfaces, EarlyView.
All organic transistors, where both the dielectric and semiconducting layers are polymeric, are developed as electrical synaptic devices. Two copolymers of PVDF as the dielectric layer with large differences in their saturation polarizability and memory window are chosen.
Evan Restuccia, Arash Ghobadi, Suchismita Guha   +2 more
wiley   +1 more source

Photonic Integrated Circuits [PDF]

Photonics Russia, 2017
openaire   +4 more sources

GaAs-based photonic integrated circuit platform enabling monolithic ring-resonator-coupled lasers

APL Photonics
This paper reports on a monolithically integrated gallium arsenide (GaAs)-based photonic integrated circuit platform for wavelengths around 1064 nm. Enabled by spatially selective quantum well removal and two-step epitaxial growth, it supports on-chip ...
Jan-Philipp Koester, Hans Wenzel, Jörg Fricke, Matthias Reggentin, Pietro Della Casa, Poojitha Sammeta, Olaf Brox, Michael Ekterai, Mario Kohlbrenner, Andreas Renkewitz, Christof Zink, Thomas Tenzler, Jos Boschker, Markus Weyers, Andrea Knigge   +14 more
doaj   +1 more source

Multi-Channel PWM Heater Control Chip in 0.18 μm High-Voltage CMOS for a Quantum Simulator

IEEE Photonics Journal
A circuit to control heating resistors with a pulse-width modulated (PWM) signal for a photonic quantum simulator is introduced. The output voltage is switched on for a changeable specified time and switched off for the rest of the period.
Christoph Ribisch, Michael Hofbauer, Kerstin Schneider-Hornstein, Alexander Kuttner, Martin Jungwirth, Horst Zimmermann   +5 more
doaj   +1 more source

The Rise of Refractory Transition‐Metal Nitride Films for Advanced Electronics and Plasmonics

Advanced Materials Interfaces, EarlyView.
Transition‐metal nitrides (TMNs) are exceptional materials with high stability, biocompatibility, and semiconductor integration, which have been extensively employed in various fields. However, the epitaxial growth of TMN films remains a challenge. The absence of high‐quality TMNs limits the understanding of their condensed matter physics and hinders ...
Jiachang Bi, Ruyi Zhang, Xiong Yao, Yanwei Cao   +3 more
wiley   +1 more source

Nonlinear dynamics in neuromorphic photonic networks: physical simulation in Verilog-A [PDF]

arXiv
Advances in silicon photonics technology have enabled the field of neuromorphic photonics, where analog neuron-like processing elements are implemented in silicon photonics technology. Accurate and scalable simulation tools for photonic integrated circuits are critical for designing neuromorphic photonic circuits.
arxiv  

The Role of Silicon Technology in Organ‐On‐Chip: Current Status and Future Perspective

Advanced Materials Technologies, EarlyView.
This review explores the potential of silicon micro‐nanofabrication technologies in advancing organ‐on‐chip systems. The integration of actuation and sensing modalities, highlight emerging technologies is discussed for combining silicon‐based and polymer‐based components, and emphasize the need for robust, high‐throughput, and customizable organ‐on ...
Frøydis Sved Skottvoll, Enrique Escobedo‐Cousin, Michal Marek Mielnik   +2 more
wiley   +1 more source