Results 61 to 70 of about 1,772,724 (258)

Ultralow power demand in fluorescence nanoscopy with digitally enhanced stimulated emission depletion

Nanophotonics, 2020
Stimulated emission depletion (STED) microscopy breaks the optical diffraction barrier and has become a powerful tool for biological study. However, its application for in vivo study is limited because of its high demand for depletion power.
Wang Luwei, Chen Yue, Peng Xiao, Zhang Jia, Wang Jialin, Liu Liwei, Yang Zhigang, Yan Wei, Qu Junle   +8 more
doaj   +1 more source

Tuning the Optoelectronic Properties of Wide Bandgap Perovskites: Data‐Driven Insights from Combinatorial Synthesis and High‐Throughput Experimentation

Advanced Functional Materials, EarlyView.
Combinatorial vapor deposition enables independent tuning of Cs/Pb and Br/Cl in wide‐bandgap perovskites. Automated multimodal mapping of 500+ compositions reveals a high‐energy optical transition that correlates with enhanced photoluminescence, defining a practical Cs/Pb window.
Alexander Wieczorek, Sergey Tsarev, Nathan Rodkey, Oleksandr Pshyk, Stefanie Frick, Maksym V. Kovalenko, Sebastian Siol   +6 more
wiley   +1 more source

Effects of Annealing Temperature on Optical Band Gap of Sol-gel Tungsten Trioxide Films

Micromachines, 2018
Tungsten trioxide (WO3) is a wide band gap semiconductor material that is used as an important electrochromic layer in electrochromic devices. In this work, the effects of the annealing temperature on the optical band gap of sol-gel WO3 films were ...
Guanguang Zhang, Kuankuan Lu, Xiaochen Zhang, Weijian Yuan, Muyang Shi, Honglong Ning, Ruiqiang Tao, Xianzhe Liu, Rihui Yao, Junbiao Peng   +9 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

Design and Simulation of Time-Pulse Coded Optoelectronic Neural [PDF]

, 2011
We consider design and hardware realizations of optoelectronic logical elements of twovalued logic with current inputs and current outputs on the basis of CMOS current mirrors. In the chapter we consider the whole family of the offered circuits, show the
Красиленко, В. Г., Krasilenko, V. G., Лазарєв, О. О., Lazarev, A. A., Nikolskyy, A. I.   +4 more
core   +1 more source

Emerging Post‐CMOS Hardware Neurons for Brain‐Inspired Computing: Devices, Circuits, and System Integration

Advanced Functional Materials, EarlyView.
The physical realization of artificial neurons is a critical challenge for energy‐efficient neuromorphic computing. This review presents a comprehensive analysis of the evolution of artificial neuron implementations from conventional CMOS to emerging post‐CMOS technologies.
Kannan Udaya Mohanan, Hocheon Yoo, Benoît H. Lessard, Ioannis Kymissis, Chang‐Hyun Kim   +4 more
wiley   +1 more source

Proton-Prompted Ligand Exchange to Achieve High-Efficiency CsPbI3 Quantum Dot Light-Emitting Diodes

Nano-Micro Letters
Highlights A new proton-promoted in situ ligand exchange strategy based on CsPbI3 quantum dots. The ligand exchange strategy maintains the quantum confinement effect of quantum dots and significantly improves the stability and photophysical properties of
Yanming Li, Ming Deng, Xuanyu Zhang, Lei Qian, Chaoyu Xiang   +4 more
doaj   +1 more source

The Physical Vapor Transport Method for Bulk AlN Crystal Growth

Molecules, 2019
In this report, the development of physical vapor transport (PVT) methods for bulk aluminum nitride (AlN) crystal growth is reviewed. Three modified PVT methods with different features including selected growth at a conical zone, freestanding growth on a
Wen-Hao Chen, Zuo-Yan Qin, Xu-Yong Tian, Xu-Hui Zhong, Zhen-Hua Sun, Bai-Kui Li, Rui-Sheng Zheng, Yuan Guo, Hong-Lei Wu   +8 more
doaj   +1 more source

Bulk‐Like Spin Cycloid and Fast Switching in Freestanding BiFeO3

Advanced Functional Materials, EarlyView.
Freestanding BiFeO3 membranes overcome substrate‐induced constraints by simultaneously restoring the intrinsic bulk‐like spin cycloid and enabling ≈50% faster ferroelectric switching than substrate‐clamped epitaxial thin films. This combination of robust noncollinear antiferromagnetic order and efficient electric‐field switching establishes ...
Pratap Pal, Xiaoxi Deng, Gi‐Yeop Kim, Kyoungjun Lee, Jheng‐Cyuan Lin, Prithwijit Mandal, Jiangfeng Yang, Paul Steadman, Pascal Manuel, Roger D. Johnson, Si‐Young Choi, Paolo G. Radaelli, Chang‐Beom Eom   +12 more
wiley   +1 more source

TiberCAD: Towards multiscale simulation of optoelectronic devices

, 2008
Due to the downscaling of semiconductor device dimensions and the emergence of new devices based on nanostructures, CNTs and molecules, the classical device simulation approach based on semi-classical transport theories needs to be extended towards a ...
Pecchia A, A, M Auf, Penazzi G, Povolotskyi M, Romano G, Sacconi F, der Maur, Di Carlo   +8 more
core   +1 more source