Results 71 to 80 of about 39,335 (326)

Enhancing Indoor Photovoltaic Efficiency to 37.6% Through Triple Passivation Reassembly and n‐Type to p‐Type Modulation in Wide Bandgap Perovskites

Advanced Functional Materials, EarlyView.
Triple Passivation Treatment (TPT) strategy enables 1.75 eV wide‐bandgap perovskite solar cells (WB‐PSCs) with suppressed halide phase segregation and n‐to‐p type surface transition. The photoluminescence quantum yield increases from 0.5 to 2.1%, indicating reduced non‐radiative losses.
Siming Huang, Shanyue Hou, Galyam Sanfo, Jingdong Xu, Yuting Wang, Himal Muwanwella, Lukas Pfeifer, Xiang Liu, Shaik M Zakeeruddin, Yuelong Huang, Michael Grätzel, Muhammad Tariq Sajjad, Mojtaba Abdi‐Jalebi   +12 more
wiley   +1 more source

Thermally-Reconfigurable Quantum Photonic Circuits at Telecom Wavelength by Femtosecond Laser Micromachining [PDF]

, 2015
The importance of integrated quantum photonics in the telecom band resides on the possibility of interfacing with the optical network infrastructure developed for classical communications.
Crespi, Andrea, D'Ambrosio, Vincenzo, Flamini, Fulvio, Magrini, Lorenzo, Mataloni, Paolo, Osellame, Roberto, Rab, Adil S., Ramponi, Roberta, Sciarrino, Fabio, Spagnolo, Nicolò, Zandrini, Tommaso   +10 more
core   +3 more sources

Understanding and Addressing the Performance Asymmetry Issue in Semitransparent Laminated Organic Photovoltaic Devices

Advanced Functional Materials, EarlyView.
This work addresses the challenge of current–voltage asymmetry in scalable laminated semitransparent organic photovoltaics (OPVs) for indoor applications. Vertical stratification of materials is shown to create an energy barrier, leading to performance differences under different illumination directions.
Gulzada Beket, Anton Zubayer, Leonie Pap, Huagui Lai, Samiran Bairagi, Nakul Jain, Jochen Stahn, Fan Fu, Kenneth Järrendahl, Fredrik Eriksson, Xabier Rodríguez‐Martínez, Olle Inganäs, Uli Würfel, Thomas Österberg, Jonas Bergqvist, Feng Gao   +15 more
wiley   +1 more source

Design and Simulation of Linear All-Optical Comparator Based on Square-Lattice Photonic Crystals

Photonics, 2022
An optical comparator is an important logic circuit used in digital designs. Photonic crystals are among the platforms for implementing different kinds of gates and logic circuits, and they are structures with alternating refractive indices.
Fariborz Parandin, Saeed Olyaee, Reza Kamarian, Mohamadreza Jomour   +3 more
doaj   +1 more source

Highly Sensitive Cuffless Blood Pressure Monitoring with Selective Laser‐Sintered Liquid Metal Conductors

Advanced Functional Materials, EarlyView.
A soft, compact, and cuffless system for continuous blood pressure monitoring using laser‐sintered liquid metal conductors is developed. The stretchability and sensitivity of the device enable real‐time, non‐invasive tracking of blood pressure, including recovery after exercise. This wearable device offers a practical solution for managing hypertension
Jung Jae Park, Sangwoo Hong, Yeongju Jung, Phillip Won, Carmel Majidi, Minwoo Kim, Seung Hwan Ko   +6 more
wiley   +1 more source

Time-correlated photons from an In_{0.5}Ga_{0.5}P photonic crystal cavity on a silicon chip

Physical Review Research, 2022
Time-correlated photon pairs are generated by triply resonant four-wave-mixing in an In_{0.5}Ga_{0.5}P photonic crystal cavity. Maximal efficiency is reached by actively compensating for the residual spectral misalignment of the cavity modes.
Alexandre Chopin, Inès Ghorbel, Sylvain Combrié, Gabriel Marty, Fabrice Raineri, Alfredo De Rossi   +5 more
doaj   +1 more source

Non-classical photon correlation in a two-dimensional photonic lattice

, 2016
Quantum interference and quantum correlation, as two main features of quantum optics, play an essential role in quantum information applications, such as multi-particle quantum walk and boson sampling.
Chen, Yuan, Feng, Zhen, Gao, Jun, Gao, Zhen-Wei, Jiao, Zhi-Qiang, Jin, Xian-Min, Lin, Xiao-Feng, Qiao, Lu-Feng, Tang, Hao, Xu, Xiao-Yun, Zhou, Zheng   +10 more
core   +1 more source

Integrated photonic circuit in silicon on insulator for fourier domain optical coherence tomography [PDF]

, 2010
Optical coherence tomography (OCT) is a medical imaging technology capable of producing high-resolution, cross-sectional images through inhomogeneous samples, such as biological tissue. It has been widely adopted in clinical ophthalmology and a number of
Baets, Roel, Bogaerts, Wim, Dumon, Pieter, Yurtsever, Günay   +3 more
core   +1 more source

Defect‐Free Block Copolymer‐Based Distributed Bragg Reflector for Optimized Light Harvesting in BiVO4 Photoanodes

Advanced Functional Materials, EarlyView.
A solution‐processed distributed Bragg reflector (DBR) film, integrated via block copolymer (BCP) self‐assembly, enhances photon recycling in BiVO4 photoanodes for improved photoelectrochemical (PEC) performance. By tuning lamellar structures using lactic acid and cross‐linking density, the DBR film optimally shifts working wavelengths, boosting ...
Shangxian Ding, Tae‐Kyung Liu, Seungjae Lee, Junsu Kim, Yuan Lu, Jung Hwan Lee, Won Jun Kang, Jung Kyu Kim, Woo‐Dong Jang, Seungyun Jo, Jong Hyeok Park, Du Yeol Ryu   +11 more
wiley   +1 more source

Four-qubit variational algorithms in silicon photonics with integrated entangled photon sources

npj Quantum Information
Variational quantum algorithms are hybrid quantum-classical approaches extensively studied for their potential to leverage near-term quantum hardware for computational advantages.
Alessio Baldazzi, Matteo Sanna, Massimo Borghi, Stefano Azzini, Lorenzo Pavesi   +4 more
doaj   +1 more source