Opto-Electronic Advances最新文献_第10页

Recent developments of quantum dot based micro-LED based on non-radiative energy transfer mechanism 基于非辐射能量传递机制的量子点微型led研究进展

IF 14.1 1区物理与天体物理

Opto-Electronic Advances Pub Date : 2021-04-06 DOI: 10.29026/OEA.2021.210022

X. Fan, Tingzhu Wu, Bin Liu, Rong-Xia Zhang, H. Kuo, Zhong Chen

引用次数: 17

Laser direct writing and characterizations of flexible piezoresistive sensors with microstructures 微结构柔性压阻传感器的激光直写与表征

IF 14.1 1区物理与天体物理

Opto-Electronic Advances Pub Date : 2021-04-06 DOI: 10.29026/OEA.2021.200061

Zhang Chenying, Wei Zhou, Da Geng, Cheng Bai, Weida Li, Songyue Chen, Tao Luo, Lifeng Qin, Xie Yu

{"title":"Laser direct writing and characterizations of flexible piezoresistive sensors with microstructures","authors":"Zhang Chenying, Wei Zhou, Da Geng, Cheng Bai, Weida Li, Songyue Chen, Tao Luo, Lifeng Qin, Xie Yu","doi":"10.29026/OEA.2021.200061","DOIUrl":"https://doi.org/10.29026/OEA.2021.200061","url":null,"abstract":"Functional materials with high viscosity and solid materials have received more and more attentions in flexible pressure sensors, which are inadequate in the most used molding method. Herein, laser direct writing (LDW) method is proposed to fabricate flexible piezoresistive sensors with microstructures on PDMS/ MWCNTs composites with an 8% MWCNTs mass fraction. By controlling laser energy, microstructures with different geometries can be obtained, which significantly impacts the performances of the sensors. Subsequently, curved microcones with excellent performance are fabricated under parameters of f = 40 kHz and v = 150 mm·s-1. The sensor exhibits continuous multi-linear sensitivity, ultrahigh original sensitivity of 21.80 % kPa-1, wide detection range of over 20 kPa, response/recovery time of ~100 ms and good cycle stability for more than 1000 times. Besides, obvious resistance variation can be observed when tiny pressure (a peanut of 30 Pa) is applied. Finally, the flexible piezoresistive sensor can be applied for LED brightness controlling, pulse detection and voice recognition.","PeriodicalId":19611,"journal":{"name":"Opto-Electronic Advances","volume":" ","pages":""},"PeriodicalIF":14.1,"publicationDate":"2021-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48208455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 18

Directional sliding of water: biomimetic snake scale surfaces 水的定向滑动:仿生蛇鳞表面

IF 14.1 1区物理与天体物理

Opto-Electronic Advances Pub Date : 2021-04-06 DOI: 10.29026/OEA.2021.210008

Yizhe Zhao, Yilin Su, X. Hou, Minghui Hong

引用次数: 46

Light-emitting MXene quantum dots 发光MXene量子点

IF 14.1 1区物理与天体物理

Opto-Electronic Advances Pub Date : 2021-03-25 DOI: 10.29026/OEA.2021.200077

A. S. Sharbirin, Sophia Akhtar, Jeongyong Kim

{"title":"Light-emitting MXene quantum dots","authors":"A. S. Sharbirin, Sophia Akhtar, Jeongyong Kim","doi":"10.29026/OEA.2021.200077","DOIUrl":"https://doi.org/10.29026/OEA.2021.200077","url":null,"abstract":"MXene (Mn+1Xn) is an emerging class of layered two-dimensional (2D) materials, which are derived from their bulk-state MAX phase (Mn+1AXn, where M: early transition metal, A: group element 13 and 14, and X: carbon and/or nitrogen). MXenes have found wide-ranging applications in energy storage devices, sensors, catalysis, etc. owing to their high electronic conductivity and wide range of optical absorption. However, the absence of semiconducting MXenes has limited their applications related to light emission. Research has shown that quantum dots (QDs) derived from MXene (MQDs) not only retain the properties of the parent MXene but also demonstrate significant improvement on light emission and quantum yield (QY). The optical properties and photoluminescence (PL) emission mechanisms of these light-emitting MQDs have not been comprehensively investigated. Recently, work on light-emitting MQDs has shown good progress, and MQDs exhibiting multi-color PL emission along with high QY have been fabricated. The synthesis methods also play a vital role in determining the light emission properties of these MQDs. This review provides an overview of light-emitting MQDs and their synthesis methods, optical properties, and applications in various optical, sensory, and imaging devices. The future prospects of light-emitting MQDs are also discussed to provide an insight that helps to further advance the progress on MQDs.","PeriodicalId":19611,"journal":{"name":"Opto-Electronic Advances","volume":" ","pages":""},"PeriodicalIF":14.1,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46920512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 34

Flexible rotation of transverse optical field for 2D self-accelerating beams with a designated trajectory 具有指定轨迹的二维自加速光束横向光场的柔性旋转

IF 14.1 1区物理与天体物理

Opto-Electronic Advances Pub Date : 2021-03-25 DOI: 10.29026/OEA.2021.200021

Zongtao Li, Cao Kai, Jiasheng Li, Yong Tang, Xinrui Ding, Binhai Yu

引用次数: 1

Review of micromachined optical accelerometers: from mg to sub-μg 微机械光学加速度计综述：从mg到亚μg

IF 14.1 1区物理与天体物理

Opto-Electronic Advances Pub Date : 2021-03-25 DOI: 10.29026/OEA.2021.200045

Qianbo Lu, Yinan Wang, Xiaoxu Wang, Yuan Yao, Xuewen Wang, Wei Huang

{"title":"Review of micromachined optical accelerometers: from mg to sub-μg","authors":"Qianbo Lu, Yinan Wang, Xiaoxu Wang, Yuan Yao, Xuewen Wang, Wei Huang","doi":"10.29026/OEA.2021.200045","DOIUrl":"https://doi.org/10.29026/OEA.2021.200045","url":null,"abstract":"Micro-Opto-Electro-Mechanical Systems (MOEMS) accelerometer is a new type of accelerometer which combines the merits of optical measurement and Micro-Electro-Mechanical Systems (MEMS) to enable high precision, small volume and anti-electromagnetic disturbance measurement of acceleration. In recent years, with the in-depth research and development of MOEMS accelerometers, the community is flourishing with the possible applications in seismic monitoring, inertial navigation, aerospace and other industrial and military fields. There have been a variety of schemes of MOEMS accelerometers, whereas the performances differ greatly due to different measurement principles and corresponding application requirements. This paper aims to address the pressing issue of the current lack of systematic review of MOEMS accelerometers. According to the optical measurement principle, we divide the MOEMS accelerometers into three categories: the geometric optics based, the wave optics based, and the new optomechanical accelerometers. Regarding the most widely studied category, the wave optics based accelerometers are further divided into four sub-categories, which is based on grating interferometric cavity, Fiber Bragg Grating (FBG), Fabry-Perot cavity, and photonic crystal, respectively. Following a brief introduction to the measurement principles, the typical performances, advantages and disadvantages as well as the potential application scenarios of all kinds of MOEMS accelerometers are discussed on the basis of typical demonstrations. This paper also presents the status and development tendency of MOEMS accelerometers to meet the ever-increasing demand for high-precision acceleration measurement.","PeriodicalId":19611,"journal":{"name":"Opto-Electronic Advances","volume":" ","pages":""},"PeriodicalIF":14.1,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45593147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 30

Circular cladding waveguides in Pr:YAG fabricated by femtosecond laser inscription: Raman, luminescence properties and guiding performance 飞秒激光制备Pr:YAG圆形包层波导：拉曼、发光特性和引导性能

IF 14.1 1区物理与天体物理

Opto-Electronic Advances Pub Date : 2021-02-28 DOI: 10.29026/OEA.2021.200005

Quanxin Yang, Hongliang Liu, Shan He, B. Tian, Pengfei Wu

引用次数: 21

Generation of super-resolved optical needle and multifocal array using graphene oxide metalenses 用氧化石墨烯金属透镜产生超分辨光学针和多焦点阵列

IF 14.1 1区物理与天体物理

Opto-Electronic Advances Pub Date : 2021-02-28 DOI: 10.29026/OEA.2021.200031

Hongtao Wang, Chenglong Hao, Han Lin, Yongtian Wang, Tian Lan, C. Qiu, B. Jia

引用次数: 29

Review of blue perovskite light emitting diodes with optimization strategies for perovskite film and device structure 蓝色钙钛矿发光二极管及其薄膜和器件结构优化策略综述

IF 14.1 1区物理与天体物理

Opto-Electronic Advances Pub Date : 2021-02-28 DOI: 10.29026/OEA.2021.200019

Zongtao Li, Cao Kai, Jiasheng Li, T. Yong, Xinrui Ding, Binhai Yu

引用次数: 21

Plasma and nanoparticle shielding during pulsed laser ablation in liquids cause ablation efficiency decrease 等离子体和纳米粒子的屏蔽会导致脉冲激光在液体中的烧蚀效率降低

IF 14.1 1区物理与天体物理

Opto-Electronic Advances Pub Date : 2021-01-27 DOI: 10.29026/OEA.2021.200072

S. Dittrich, S. Barcikowski, Bilal Gökce

{"title":"Plasma and nanoparticle shielding during pulsed laser ablation in liquids cause ablation efficiency decrease","authors":"S. Dittrich, S. Barcikowski, Bilal Gökce","doi":"10.29026/OEA.2021.200072","DOIUrl":"https://doi.org/10.29026/OEA.2021.200072","url":null,"abstract":"Understanding shielding cross-effects is a prerequisite for maximal power-specific nanosecond laser ablation in liquids (LAL). However, discrimination between cavitation bubble (CB), nanoparticle (NP), and shielding, e.g., by the plasma or a transient vapor layer, is challenging. Therefore, CB imaging by shadowgraphy is performed to better understand the plasma and laser beam-NP interaction during LAL. By comparing the fluence-dependent CB volume for ablations performed with 1 ns pulses with reports from the literature, we find larger energy-specific CB volumes for 7 ns-ablation. The increased CB for laser ablation with higher ns pulse durations could be a first explanation of the efficiency decrease reported for these laser systems having higher pulse durations. Consequently, 1 ns-LAL shows superior ablation efficiency. Moreover, a CB cascade occurs when the focal plane is shifted into the liquid. This effect is enhanced when NPs are present in the fluid. Even minute amounts of NPs trapped in a stationary layer decrease the laser energy significantly, even under liquid flow. However, this local concentration in the sticking film has so far not been considered. It presents an essential obstacle in high-yield LAL, shielding already the second laser pulse that arrives and presenting a source of satellite bubbles. Hence, measures to lower the NP concentration on the target must be investigated in the future.","PeriodicalId":19611,"journal":{"name":"Opto-Electronic Advances","volume":" ","pages":""},"PeriodicalIF":14.1,"publicationDate":"2021-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44428477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 23