Results 61 to 70 of about 1,209,390 (285)

Near‐infrared fluorophores with absolute aggregation‐caused quenching and negligible fluorescence re‐illumination for in vivo bioimaging of nanocarriers

Aggregate, 2023
Environment‐responsive fluorophores with aggregation‐caused quenching (ACQ) properties have been applied to track nanocarriers with reduced artefacts caused by unbound or free fluorophores but suffer from incomplete fluorescence quenching and significant
Yifan Cai, Xin Ji, Yunsen Zhang, Chang Liu, Zichen Zhang, Yongjiu Lv, Xiaochun Dong, Haisheng He, Jianping Qi, Yi Lu, Defang Ouyang, Weili Zhao, Wei Wu   +12 more
doaj   +1 more source

Color Rendering Index over 95 Achieved by Using Light Recycling Process Based on Hybrid Remote-Type Red Quantum-Dot Components Applied to Conventional LED Lighting Devices

Nanomaterials, 2023
Red color conversion materials have often been used in conventional white LEDs (light-emitting diodes) to enhance the insufficient deep-red component and thus improve the color-rendering property. Quantum dots (QDs) are one of the candidates for this due
Eunki Baek, Boseong Kim, Sohee Kim, Juyeon Song, Jaehyeong Yoo, Sung Min Park, Jong-Min Lee, Jae-Hyeon Ko   +7 more
doaj   +1 more source

Light‐Induced Field‐Tunneling Synapses in Solution‐Processed Van Der Waals Heterostructures for Scalable, Retina‐Inspired Optical Sensing

Advanced Functional Materials, EarlyView.
A scalable, solution‐processed WSe2/ZrO2‐x van der Waals heterostructure realizes a light‐induced field‐tunneling synapse (LIFTS) that activates exclusively under bright illumination, emulating the photopic adaptation of the human retina at the device level.
Kijeong Nam, Jihyun Kim, Soobeen Ji, In Soo Kim, Sejin Kim, Eungseon Yeon, Do Kyung Hwang, Iva Plutnarová, Zdeněk Sofer, Sang Min Won, Joohoon Kang   +10 more
wiley   +1 more source

Quantum illumination radars: Target detection

IET Radar, Sonar & Navigation
The authors consider a quantum radar which operates on the quantum illumination principle. The authors’ attention is focused on its function of target detection in a noisy environment.
Jingxin Wang, Kon Max Wong
doaj   +1 more source

Optical engineering of infrared PbS CQD photovoltaic cells for wireless optical power transfer systems

Frontiers of Optoelectronics, 2023
Infrared photovoltaic cells (IRPCs) have attracted considerable attention for potential applications in wireless optical power transfer (WOPT) systems. As an efficient fiber-integrated WOPT system typically uses a 1550 nm laser beam, it is essential to ...
Mengqiong Zhu, Yuanbo Zhang, Shuaicheng Lu, Zijun Wang, Junbing Zhou, Wenkai Ma, Ruinan Zhu, Guanyuan Chen, Jianbing Zhang, Liang Gao, Jiancan Yu, Pingqi Gao, Jiang Tang   +12 more
doaj   +1 more source

Vector‐Field Control and Emergent Basal‐Plane Anisotropy of Magnetic Textures in Noncentrosymmetric (Fe0.63Ni0.3Pd0.07)3P

Advanced Functional Materials, EarlyView.
A field‐driven transition from chiral stripes to an achiral fan state is observed in a tetragonal magnet and linked to a temperature‐dependent rotation of the effective Dzyaloshinskii–Moriya interaction axis. This interplay generates pronounced in‐plane anisotropy and provides a new route for controlling chiral spin textures in noncentrosymmetric ...
Victor Ukleev, Oleg I. Utesov, Lorenzo Ubilla, Chen Luo, Radu‐Marius Abrudan, Peter Wild, Holger Kropf, Moritz Winter, Sebastian Schneider, Alexander Tahn, Bernd Rellinghaus, Tim A. Butcher, Simone Finizio, Sebastian Wintz, Markus Weigand, Max T. Birch, Yoshinori Tokura, Yasujiro Taguchi, Kosuke Karube, Florin Radu   +19 more
wiley   +1 more source

Design analysis of phosphor-free monolithic white light-emitting-diodes with InGaN/ InGaN multiple quantum wells on ternary InGaN substrates

AIP Advances, 2015
Phosphor-free monolithic white light emitting diodes (LEDs) based on InGaN/ InGaN multiple quantum wells (MQWs) on ternary InGaN substrates are proposed and analyzed in this study. Simulation studies show that LED devices composed of multi-color-emitting
Yu Kee Ooi, Jing Zhang
doaj   +1 more source

Two photon excitable graphene quantum dots for structured illumination microscopy and imaging application: lysosome specificity and tissue-dependent imaging [PDF]

, 2018
Two-photon active Graphene Quantum Dots (GQDs) are obtained from extracts of the neem root. These biocompatible GQDs are found to be suitable for structured illumination microscopy. Two-photon microscopy ensured lysosome specificity of GQDs in live cells
Sreedharan, S., Das, A., Pramanik, Sumit Kumar, Thomas, Jim A., Green, N., Pramanik, S.K., Green, Nicola H., Smythe, Carl, Tiwari, Karishma, Sreedharan, Sreejesh, Thomas, J.A., Singh, Harwinder, Singh, H., Tiwari, K., Das, Amitava, Smythe, C., Green, N.H.   +16 more
core   +1 more source

Discovery of Energy‐Localized Trap States via Opto‐Electrical Spectroscopy in UWBG Perovskite La:SrSnO3 FETs

Advanced Functional Materials, EarlyView.
Combined UV–vis transmittance and wavelength‐dependent photo‐assisted DC I–V analyses reveal defect‐induced optical instability and a high density of deep donor‐like subgap traps in La‐doped SrSnO3. The resulting MOSFET achieves one of the highest on/off ratios reported for ABO3 perovskite devices, demonstrating the promise of stannate perovskites as ...
Sojin Jung, Junghyun Koo, Hongseung Lee, Donghwan Kim, Dongho Won, Weideng Sun, Jaewook Yoo, Minah Park, Seohyeon Park, Seongbin Lim, Joonsung Lee, Sungjune Park, Sangmoon Yoon, Tae Wan Kim, Bharat Jalan, Gang Qiu, Kiyoung Lee, Hagyoul Bae   +17 more
wiley   +1 more source

Optimal probes for continuous-variable quantum illumination

, 2021
Quantum illumination is the task of determining the presence of an object in a noisy environment. We determine the optimal continuous-variable states for quantum illumination in the limit of zero object reflectivity. We prove that the optimal single-mode
Assad, Syed, Conlon, Lorcan O., Assad, Syed M., Bradshaw, Mark, Conlon, Lorcan, Tserkis, Spyros, Lam, Ping Koy, Gu, Mile   +7 more
core   +1 more source