Materials
·
2017
·Vol. 10
·期 11
·1332
·
IF 2.654
Xinghua Wu,Chao Tan,Qingkai Wang,Yanyan Guo,Dianyuan Wang,Yongqian Wang,Dawei Meng
Two-dimensional Bi2Se3nanosheets with hexagonal shape are synthesized by a solution synthetic route. The Bi2Se3nanosheets are 120 nm in edge width and 7 nm in thickness. The size of the Bi2Se3nanosheets can be controlled by choosing different kinds of reducing agents including hydroxylamine and ethylenediamine. Subsequently, we demonstrate a configuration of two-color all-optical switching based on plasma channels effect using the as-synthesized Bi2Se3nanosheets as an optical media. The signal light can be modulated as two states including dot and ring shape by changing the intensity of control light. The modulated signal light exhibits excellent spatial propagation properties. As a type of interesting optical material, ultrathin two-dimensional Bi2Se3nanosheets might provide an effective option for photoelectric applications.Keywords:nanoparticles;optical materials and properties;nanocrystalline;optical switching
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Inorganic Chemistry Frontiers
·
2022
·Vol. 10
·期 2
·435-442
·
IF 7.779
Kai Li,Huang Ye,Xiaoqi Li,Xinqiang Wang,Junhua Luo,Xitao Liu
Recently, impressive progress has been achieved on a new and brilliant scheme for a solid-state quadratic nonlinear optical (NLO) switch, which holds enormous potential for developing next-generation intelligent optoelectronic devices. However, most of them are still restricted by their poor switching capability and low operating temperature. Herein, we present a rational design approach for developing a highly efficient hybrid halide NLO switching material through introducing conjugated aromatic Schiff base cations. As expected, an organic–inorganic hybrid halide compound (C10H14N)PbBr3 (1, C10H14N is N-propylbenzylideneaminium) has been developed, which exhibits highly efficient modulation of the quadratic NLO property (1.05 times that of KH2PO4) and a high phase transition temperature of 411 K. Besides, the second harmonic generation (SHG) powder test demonstrates that this material is phase matchable. Microscopic single-crystal structure analysis combined with theoretical calculations reveals that the high-performance NLO switching behaviour of 1 originates from the reversible ordered/disordered transformation of the aromatic Schiff base N-propylbenzylideneaminium cations accompanied by the re-orientation of the inorganic [PbBr3]∞ framework. More importantly, further investigations show that the conjugated effect of the Schiff base cations makes important contributions to the NLO properties of 1. This work opens up a new route for designing highly efficient quadratic NLO switches and provides a promising way to further develop high-performance solid-state phase transition materials (e.g. ferroelectrics) and intelligent optoelectronic devices.
研究领域:
材料科学
·
非线性光学
·
智能光电子器件
✓ 已验证
DOI
高影响因子
OPTICAL MATERIALS
·
2019
·
IF 2.687
Mingrui Tan,Ning Sui,Qinghui Liu,Zhihui Kang,Lin Wang,Wenquan Wang,Qiang Zhou,Hanzhuang Zhang,Yinghui Wang
Low-toxicity zinc blende Mn–CuInS (MCIS) thin films and a corresponding optical switch were fabricated and examined using multiple measurements. Transient absorption spectroscopy indicated that multiple carrier processes occurred during carrier relaxation. The optical switch devices showed good responsivity and stability. The kinetics of the photo-generated charge carriers were affected by carrier concentration and showed no electric-field dependence. These prepared devices showed potential for rapid photodetection applications.
研究领域:
材料科学
·
光学工程
·
半导体物理
✓ 已验证
产品关联
DOI
高影响因子
Flexible and Printed Electronics
·
2017
·Vol. 2
·期 2
·025001
·
IF 0
Zhisong Lu,Mengyao Zhou,Huihui Zhang
The development of textile-based wearable devices has been a hot research topic in recent years. However, a fabric-supported optical switch has never been reported. Herein, a pair of interdigital silver electrodes and hydrothermally synthesized Bi2S3 nanowires (NWs) were screen-printed successively onto silk fabric to construct a silk fabric-based flexible optical switch. The device showed irradiation power-dependent light-on currents and was able to respond to blue, green and red light. A fast response/recovery time of less than 2 ms could be achieved. After 120 cycles of distortion or bending, the light-on current remained as high as >85%. Bi2S3 NW films with different patterns could be printed on top of the devices without significantly affecting their performance. It was also demonstrated that the system could be utilized to trigger the rotation of an electrical fan. This work may provide a facile approach for the preparation of a silk fabric-based optical switch for wearable electronics.
研究领域:
材料科学
·
光电技术
·
纺织工程
✓ 已验证
产品关联
DOI
Optica
·
2021
·Vol. 8
·期 5
·735-742
·
IF 11.104
Xinping Zhang,Xinping Zhang,Meng Wang,Meng Wang,Lin Ma,Lin Ma,Yulan Fu,Jinxin Guo,He Ma,Yiwei Zhang,Zhengguang Yan,Zhengguang Yan,Zhengguang Yan,Xiaodong Han,Xiaodong Han
Photoelectronic performance of organic–inorganic hybrid perovskites has been investigated extensively. Advancement in optoelectronic characterization and application of this group of materials in solar cells, light-emitting diodes, and lasers has been pushed forward rapidly. However, nonlinear optical properties for applications in optical logic devices have not been exploited. Moreover, long-lived excitons and charges limit the response speed of such materials and further construction of ultrafast devices. In this work, we make use of the high third-order optical nonlinearity of $({{\rm CH}_3}{{\rm NH}_3}){{\rm PbBr}_3}$ single crystals and develop a femtosecond optical switch (OS) based on strong two-photon processes through absorbing one pump and one probe photon. The fascinating band structure, with a steep edge at 2.22 eV between the transmission and strong absorption bands, endows single crystals of $({{\rm CH}_3}{{\rm NH}_3}){{\rm PbBr}_3}$ with perfect characteristics for two-photon optical switching in the near infrared. An on–off ratio of the probe pulses of about 90% and a speed faster than 400 fs have been achieved for this OS device. To the best of our knowledge, such high efficiency has not been realized for an ultrafast OS with any other materials and devices. Moreover, this is a first exploration, to our best knowledge, of the third-order optical nonlinearity of organic–inorganic hybrid halide perovskites for application in ultrafast optical logic devices with high reliability and low threshold in the near infrared.
研究领域:
材料科学
·
光学工程
·
光电子学
✓ 已验证
DOI
高影响因子
Nature Communications
·
2023
·Vol. 14
·期 1
·1-14
·
IF 16.6
Li Jingjing,Cui Yihan,Lu Yi-Lin,Zhang Yunfei,Zhang Kaihuang,Gu Chaonan,Wang Kaifang,Liang Yujia,Liu Chun-Sen
The dynamic regulation of supramolecular chirality in non-equilibrium systems can provide valuable insights into molecular self-assembly in living systems. Herein, we demonstrate the use of chemical fuels for regulating self-assembly pathway, which thereby controls the supramolecular chirality of assembly in non-equilibrium systems. Depending on the nature of different fuel acids, the system shows pathway-dependent non-equilibrium self-assembly, resulting in either dynamic self-assembly with transient supramolecular chirality or kinetically trapped self-assembly with inverse supramolecular chirality. More importantly, successive conducting of chemical-fueled process and thermal annealing process allows for the sequential programmability of the supramolecular chirality between four different chiral hydrogels, affording a new example of a multistate supramolecular chiroptical switch that can be recycled multiple times. The current finding sheds new light on the design of future supramolecular chiral materials, offering access to alternative self-assembly pathways and kinetically controlled non-equilibrium states.
研究领域:
化学
·
材料科学
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
DYES AND PIGMENTS
·
2021
·
IF 4.889
Siyuan Tang,Da Chen,Changxing Wang,Yongsheng Yang,Xiameng Li,Tingting Li,Xiaohong Zhang
Nitrogen and sulfur co-doped graphene quantum dots (N, S-GQDs) are prepared by using o-phenylendiamine and catechol as raw materials under UV irradiation in dimethyl sulfoxide (DMSO) solution for 2 h. The resultant N, S-GQDs show uniform size, good crystallinity and fluorescence stability. The tunable polychromatic luminescence is obtained by adjusting the concentration of N, S-GQDs. Then, N, S-GQDs/HPMC composite material is designed and synthesized, which exhibits light responsive optical switching performance owing to micro-aggregation efficacy of N, S-GQDs to transform light into heat and drive the phase transition of hydroxypropyl methyl cellulose (HPMC). Therefore, the prepared N, S-GQDs/HPMC with excellent solar modulation ability can easily switch between opaque and transparent states depending on weather condition. In the end, the thermoresponsive property of N, S-GQDs/HPMC endows it with good performance as functional materials matrix.
研究领域:
材料科学
·
光学工程
✓ 已验证
DOI
高影响因子
ACS Applied Nano Materials
·
2021
·
IF 5.097
Shilin Wang,Shuaikang Fan,Zhou Fang,Yue Hu,Mengyang Dong,Xinsheng Peng
Stimuli-responsive conductive MOF nanoporous materials have been considered to have great potential for photoelectric conversion, information processing, bioelectronics, and smart devices. However, light-regulating hydroxide ion conduction of MOFs is rarely reported. Herein, a reversible optical switch on hydroxide ion conduction has been achieved based on the intrinsic localized photothermal heating of NH2-UiO-66 nanoparticles. The amino group on the organic ligand of NH2-UiO-66 can build a hydrogen-bond network with water molecules to promote hydroxide ion transport in the nanochannel and cause an absorption band in the visible light region. Irradiated by visible light, NH2-UiO-66 nanoparticles can absorb light and convert it into heat, resulting in partial removal of water molecules in the nanopores and destroying the hydroxide ion transport path. Then, the hydroxide ion conductivity decreased by 2 orders of magnitude. When turning off the light, the hydroxide ion conductivity can restore quickly. This work will promote the development of remotely controlled hydroxide ion conductive smart devices.
研究领域:
材料科学
·
光电转换
·
智能设备
✓ 已验证
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2022
·Vol. 33
·期 3
·2209368
·
IF 19.924
Manchun Zheng,Yang Shen,Qiushun Zou,Yaohua Huang,Ke Huang,Xiaoyi She,Chongjun Jin
Fast and full switching of plasmonic resonances would provide a building block for integrated electro-optically active plasmonics. To date, limited by the material properties, achieving a plasmonic resonance that can be turned fully ON and OFF in the visible region remains a formidable challenge. In this study, a nearly full optical switching based on a moisture-driven metal-hydrogel-metal (MHM) metasurface at visible frequency is experimentally realized. As a result of the bound state in the continuum (BIC)-to-quasi-BIC transition in the MHM, a sharp Fano-type quasi-BIC resonance can be switched off and back on with an ultrahigh reflectance modulation depth up to −14.6 dB within 1 s by moisture loading. Such a BIC-to-quasi-BIC transition can be well mediated by engineering the coupling between the magnetic mode and surface plasmon polariton via an active control of the gap distance between the two metallic layers. Using this concept, the MHM is demonstrated as a fast-response breathing sensor with a maximum detectable respiratory rate of up to 30 breaths per minute (bpm). These results suggest that our approach will help to realize plasmonic-based integrated active optical devices in optical sensing and modulation.
研究领域:
光学
·
材料科学
·
传感器技术
✓ 已验证
产品关联
DOI
高影响因子
Small
·
2019
·Vol. 15
·期 7
·1804974
·
IF 10.856
Na Li,Pingping Wei,Linan Yu,Junyi Ji,Jiupeng Zhao,Chuanbo Gao,Yao Li,Yadong Yin
The dynamic optical switch of plasmonic nanostructures is highly desirable due to its promising applications in many smart optical devices. To address the challenges in the reversibility and transmittance contrast of the plasmonic electrochromic devices, here, a strategy is reported to fabricate color switchable electrochromic films through electro-responsive dissolution and deposition of Ag on predefined hollow shells of Au/Ag alloy. Using the hollow Au/Ag alloy nanostructures as stable seeds for site-specific deposition of Ag, elimination of the random self-nucleation events is enabled and optimal reversibility in color switching is allowed. The hollow structure further enables excellent transmittance contrast between the bleached and colored states. With its additional advantages such as the convenience for preparation, high sensitivity, and field-tunable optical property, it is believed that this new electrochromic film represents a unique platform for designing novel smart optical devices.
研究领域:
材料科学
·
纳米科技
·
光学工程
·
功能材料
·
电化学
✓ 已验证
DOI
高影响因子
OPTICAL FIBER TECHNOLOGY
·
2013
·Vol. 20
·期 1
·28-31
·
IF 1.187
Jiao-Yang Li,Xu-Guang Huang,Wei Xu,Dong-Rui Xiao,Ze-Bing Zhong
A biocompatible fiber-optic pH sensor based on Fresnel reflection technique and a sensing coating is presented. Sodium alginate and polyethylenimine are alternatively deposited on the sensing fiber end to form the sensing coating via a layer-by-layer electrostatic self-assembly technique. An optical switch is added to the measurement system for the convenience of fast calibration. A linear, monotonic and fast response in a large pH range (from pH 5.87 to pH 10.55) is obtained with the resolution of 0.01 pH unit. The sensitivity of the pH sensor is 0.018 R.I.U/pH. It is not influenced by fluctuations of light source.
研究领域:
生物医学工程
·
传感技术
·
分子生物学
·
转化医学
·
生物材料
✓ 已验证
DOI
高影响因子
Laser & Photonics Reviews
·
2025
·
IF 10
Pengyun Wang,Jiahe Yan,Haiqiang Zhu,Pin Gu,Zuxing Zhang,Jianrong Qiu,Xiaofeng Liu
The integration and manipulation of plasmonic nanostructures inside a stable monolithic medium could be of high interest for solid-state photonic devices. Here, the development of inorganic oxide glasses is demonstrated wherein the growth of plasmonic nanoparticles (NPs) based on indium tin oxide (ITO) through solid-state reaction can be manipulated in a controllable manner. The plasmonic response of the precipitated ITO NPs contributes to boosted and tunable infrared nonlinear optical (NLO) response associated with localized surface plasmon resonance (LSPR) of the ITO NPs. It is further elucidated that the plasmon coupling between ITO NPs in the glass matrix plays an essential role in the 100-fs scale NLO response by accelerating the relaxation of hot electrons, such that the NLO response speed can be enhanced to exceed that in typical noble metal-based plasmonic nanostructures. The ultrafast absorptive optical nonlinearity with a high modulation depth could enable diverse applications, as exemplified here by the robust optical switching for mode-locked pulse generation in fiber lasers. These results could have strong implications for the development of integrated solid-state plasmonic devices for photonics applications.
研究领域:
材料科学
·
光学工程
·
光子学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）