Results 21 to 30 of about 198 (133)

Purinylidene‐Based Iridium(III) Phosphors for Efficient Purple Phosphorescence and Organic Light‐Emitting Devices

Advanced Photonics Research, Volume 6, Issue 5, May 2025.
A family of purinylidene based Ir(III) emitters, namely, f‐ct2a–d, are synthesized and utilized as both dopants and sensitizers in the construction of efficient purple to deep‐blue organic light‐emitting diode devices. It is very challenging to achieve highly efficient and low roll‐off purple to deep‐blue organic light‐emitting diodes (OLEDs) due to ...
Jie Yan, Yi Pan, Zhi‐Hao Qu, Zihan Xu, Kwok‐Chung Law, Dong‐Ying Zhou, Liang‐Sheng Liao, Yun Chi, Kai‐Chung Lau   +8 more
wiley   +1 more source

Moving Toward Human‐Like Perception and Sensation Systems—From Integrated Intelligent Systems to Decentralized Smart Devices

SmartSys, Volume 1, Issue 1, March 2025.
ABSTRACT Artificial Intelligence (AI) has shown the power to enhance the functionality of sensors and enable intelligent human‐machine interfaces through machine learning‐based data analysis. However, the good performance of AI is always accompanied by a large amount of data and high computational complexity.
Zhongda Sun, Tianyiyi He, Zhihao Ren, Chan Wang, Xinmiao Liu, Zixuan Zhang, Jingkai Zhou, Xinge Guo, Yanqin Yang, Chengkuo Lee   +9 more
wiley   +1 more source

Design of dynamic range adjustable laser ranging chip based on element sharing

IET Optoelectronics, Volume 19, Issue 1, January/December 2025.
This work proposes a design of a dynamic range adjustable laser ranging chip based on element sharing, which combines single photon avalanche diodes (SPAD) and direct time‐of‐flight (dToF) to address the uncertainty of detection distance in different usage scenarios of laser ranging technology.
Xuanke Tong, Chongzhuo Zhao, Zhiwei Huang, Chuanxin Teng, Shijie Deng   +4 more
wiley   +1 more source

Vacuum Analysis and Experiment of Free‐Electron Laser Oscillator Based on Molflow+ Simulation

Science and Technology of Nuclear Installations, Volume 2025, Issue 1, 2025.
The oscillator of an infrared free‐electron laser (IR FEL) facility is an ultrahigh vacuum component. Based on experience from an existing IR FEL facility, this paper establishes the vacuum pressure targets for the oscillator system. Due to the actual structure of the cavity, it is not feasible to install pumping ports or vacuum measurement ports in ...
Chen Wang, Siyue Chen, Guangli Kuang, Arkady Serikov   +3 more
wiley   +1 more source

Chemical Sensor Technologies for Sustainable Development: Recent Advances, Classification, and Environmental Monitoring

Advanced Sensor Research, Volume 3, Issue 12, December 2024.
This review highlights the recent advancements in chemical sensor technologies for environmental protection. These sensors are crucial for detecting pollutants, monitoring soil health, identifying chemical warfare agents, and ensuring overall environmental safety.
Abel Inobeme, Arunadevi Natarajan, Safalmani Pradhan, Charles Oluwaseun Adetunji, Alexander Ikechukwu Ajai, Jonathan Inobeme, Mathew John Tsado, John Olusanya Jacob, Shyam S. Pandey, Kshitij RB Singh, Jay Singh   +10 more
wiley   +1 more source

Physical Reservoir Computing Utilizing Ion‐Gating Transistors Operating in Electric Double Layer and Redox Mechanisms

Advanced Electronic Materials, Volume 10, Issue 12, December 2024.
Recently, ion‐gating transistors, controlling electrical conductivity using electrochemical mechanisms such as electric double layers and redox, show very high computational performance with complex and diverse output properties in contrast to their simple structures, based on physical reservoir computing.
Takashi Tsuchiya, Daiki Nishioka, Wataru Namiki, Kazuya Terabe   +3 more
wiley   +1 more source

Tetradentate Pt(II) Complexes Based on Xylenylamino Linked Dual Pyrazolate Chelates for Organic Light Emitting Diodes

Chemistry – A European Journal, Volume 30, Issue 58, October 17, 2024.
Functional tetradentate chelates composed of two pyrazolate chelates and one xylenylamino linker were employed in preparation of Pt(II) complexes showing efficient ligand‐centered ππ* transition characteristics. Upon fabrication of OLED devices, Pt4N2 and Pt4N3 based devices delivered efficient cyan and green emission, with an EQEmax of 15.2 % and 11.2 
Fan Zhou, Yi Pan, Wen‐Yi Hung, Ching‐Feng Chen, Kui‐Ming Chen, Jian‐Liang Li, Shek‐Man Yiu, Yi‐Mei Liu, Pi‐Tai Chou, Yun Chi, Kai‐Chung Lau   +10 more
wiley   +1 more source

Dual Chalcogen‐Bonding Interaction for High‐Performance Filterless Narrowband Organic Photodetectors

Small, Volume 20, Issue 37, September 12, 2024.
An outstanding green‐absorbing organic material having dual intramolecular bonds and featuring a narrow absorption spectrum and high absorption coefficient is synthesized. This material forms the core of stacked organic photodetector‐on‐silicon hybrid image sensors, providing the absorption layer for innovative green‐selective organic photodetectors ...
Hyeong‐Ju Kim, Bongsu Kim, Sungyoung Yun, Dong‐Jin Yun, Taejin Choi, Sangjun Lee, Daiki Minami, Chul‐Joon Heo, Juhyung Lim, Hiromasa Shibuya, Younhee Lim, Jisoo Shin, Hyerim Hong, Jeong‐Il Park, Feifei Fang, Hwijoung Seo, Jeoungin Yi, Sangho Park, Hyun Hwi Lee, Kyung‐Bae Park   +19 more
wiley   +1 more source

Influence of distributed feedback on chaotic virtual cathode oscillation

Izvestiya VUZ. Applied Nonlinear Dynamics, 1998
Complex dynamics of clectron beam with virtual cathode and distributed feedback is considered with the aid of numerical simulation. Characteristics of virtual cathode complex dynamics is investigated. For the system with connection through electron beam formation of the different types of autostructures is considered.
Vasilij Anfinogentov, Aleksandr Hramov
openaire   +1 more source

Oscillations of a System of Coupled Oscillators with a Virtod-Type Virtual Cathode

, 2006
6 pages, 5 figures, 1 ...
openaire   +2 more sources