Circularly Polarized Luminescent Porous Crystalline Nanomaterials

Nanoscale ◽  
2022 ◽  
Author(s):  
Anyi Zheng ◽  
Tonghan Zhao ◽  
Xue Jin ◽  
Wangen Miao ◽  
Pengfei Duan
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Information Storage ◽  
Low Power Consumption ◽  
Active Materials ◽  
Circularly Polarized ◽  
Circularly Polarized Luminescence ◽  
Polarized Luminescence ◽  
Potential Applications ◽  
Wide Potential

Circularly polarized luminescence (CPL) active materials have attracted exclusive attention because of their wide potential applications in low-power-consumption displays, encrypted information storage, chiroptical sensors, and so on. However, there is...

Circularly polarized luminescence from oriented polymer films doped with a tetraphenylethylene-based conjugated oligomer

2021 ◽  
Author(s):  
Wan Zhang ◽  
Baining Ni ◽  
Hongkun Li ◽  
Yonggang Yang ◽  
Yongfang Li ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Polymer Films ◽  
High Quantum Yield ◽  
Oriented Polymer ◽  
Active Materials ◽  
Circularly Polarized ◽  
Circularly Polarized Luminescence ◽  
Polarized Luminescence ◽  
Potential Applications ◽  
Wide Potential

Circularly polarized luminescence (CPL) materials have attracted increasing interest due to their wide potential applications. However, achieving CPL-active materials with both large dissymmetry factor (glum) and high quantum yield (F)...

scholarly journals Recent Theoretical and Experimental Progress in Circularly Polarized Luminescence of Small Organic Molecules

Molecules ◽  
2018 ◽  
Vol 23 (12) ◽  
pp. 3376 ◽  
Author(s):  
Naibo Chen ◽  
Bo Yan
Keyword(s):  
Organic Molecules ◽  
Theoretical Calculations ◽  
Important Research ◽  
Research Groups ◽  
Small Organic Molecules ◽  
Circularly Polarized ◽  
Chiral Structures ◽  
Circularly Polarized Luminescence ◽  
Polarized Luminescence ◽  
Potential Applications

Small organic molecules (SOMs) with fascinating chiroptical properties have received much attention for their potential applications in photoelectric and biological devices. As an important research tool, circularly polarized luminescence (CPL) provides information about the chiral structures of these molecules in their excited state, and has been an active area of research. With the development of the commercially available CPL instrumentation, currently, more and more research groups have attempted to enhance the CPL parameters (i.e., quantum yield and dissymmetry factor) of the chiral SOMs from all aspects. This review summarizes the latest five years progresses in research on the experimental techniques and theoretical calculations of CPL emitted from SOMs, as well as forecasting its trend of development.

scholarly journals Circularly polarized luminescence from organic micro-/nano-structures

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Yongjing Deng ◽  
Mengzhu Wang ◽  
Yanling Zhuang ◽  
Shujuan Liu ◽  
Wei Huang ◽  
...  
Keyword(s):  
Self Assembly ◽  
Polarized Light ◽  
Design Principles ◽  
Active Materials ◽  
High Quantum Efficiency ◽  
Circularly Polarized Light ◽  
Circularly Polarized ◽  
Nano Structures ◽  
Circularly Polarized Luminescence ◽  
Polarized Luminescence

AbstractCircularly polarized light exhibits promising applications in future displays and photonic technologies. Circularly polarized luminescence (CPL) from chiral luminophores is an ideal approach to directly generating circularly polarized light, in which the energy loss induced by the circularly polarized filters can be reduced. Among various chiral luminophores, organic micro-/nano-structures have attracted increasing attention owing to the high quantum efficiency and luminescence dissymmetry factor. Herein, the recent progress of CPL from organic micro-/nano-structures is summarized. Firstly, the design principles of CPL-active organic micro-/nano-structures are expounded from the construction of micro-/nano-structure and the introduction of chirality. Based on these design principles, several typical organic micro-/nano-structures with CPL activity are introduced in detail, including self-assembly of small molecules, self-assembly of π-conjugated polymers, and self-assembly on micro-/nanoscale architectures. Subsequently, we discuss the external stimuli that can regulate CPL performance, including solvents, pH value, metal ions, mechanical force, and temperature. We also summarize the applications of CPL-active materials in organic light-emitting diodes, optical information processing, and chemical and biological sensing. Finally, the current challenges and prospects in this emerging field are presented. It is expected that this review will provide a guide for the design of excellent CPL-active materials.

A conversion-type electrochemical artificial synapse for plasticity modulation and dendritic application

2021 ◽  
Author(s):  
Huanhuan Wei ◽  
Haiyang Yu ◽  
Jiangdong Gong ◽  
Renjie Li ◽  
Hong Han ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
High Sensitivity ◽  
Low Power Consumption ◽  
Memory Enhancement ◽  
Dendritic Integration ◽  
Artificial Synapse ◽  
Potential Applications

A conversion-type electrochemical artificial synapse exhibits potential applications for memory enhancement and dendritic integration; ultra-high sensitivity (3 mV) and extremely low-power consumption (32 fW) could be achieved.

scholarly journals Bacterial Cellulose: A Versatile Chiral Host for Circularly Polarized Luminescence

Molecules ◽  
2019 ◽  
Vol 24 (6) ◽  
pp. 1008 ◽  
Author(s):  
Chen Zou ◽  
Dan Qu ◽  
Haijing Jiang ◽  
Di Lu ◽  
Xiaoting Ma ◽  
...  
Keyword(s):  
Bacterial Cellulose ◽  
Ambient Conditions ◽  
Circularly Polarized ◽  
Commercial Grade ◽  
Polymer Dots ◽  
Circularly Polarized Luminescence ◽  
Polarized Luminescence ◽  
Potential Applications ◽  
Dilute Aqueous Solutions ◽  
Asymmetric Environment

Materials capable of circularly polarized luminescence (CPL) have attracted considerable attention for their promising potential applications. Bacterial cellulose (BC) was characterized as having a stable right-handed twist, which makes it a potential chiral host to endow luminophores with CPL. Then, the CPL-active BC composite film was constructed by simply impregnating bacterial cellulose pellicles with dilute aqueous solutions of luminophores (rhodamine B, carbon dots, polymer dots) and drying under ambient conditions. Simple encapsulation of luminophores renders BC with circularly polarized luminescence with a dissymmetry factor of up to 0.03. The multiple chiral centers of bacterial cellulose provide a primary asymmetric environment that can be further modulated by supramolecular chemistry, which is responsible for its circular polarization ability. We further demonstrate that commercial grade paper may endow luminophores with CPL activity, which reifies the universality of the method.

scholarly journals Structure, Performance, and Application of BiFeO3 Nanomaterials

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Nan Wang ◽  
Xudong Luo ◽  
Lu Han ◽  
Zhiqiang Zhang ◽  
Renyun Zhang ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Room Temperature ◽  
Bismuth Ferrite ◽  
Ferroelectric Properties ◽  
Environmentally Friendly ◽  
Low Power Consumption ◽  
Broad Application ◽  
The Future ◽  
Potential Applications

AbstractMultiferroic nanomaterials have attracted great interest due to simultaneous two or more properties such as ferroelectricity, ferromagnetism, and ferroelasticity, which can promise a broad application in multifunctional, low-power consumption, environmentally friendly devices. Bismuth ferrite (BiFeO3, BFO) exhibits both (anti)ferromagnetic and ferroelectric properties at room temperature. Thus, it has played an increasingly important role in multiferroic system. In this review, we systematically discussed the developments of BFO nanomaterials including morphology, structures, properties, and potential applications in multiferroic devices with novel functions. Even the opportunities and challenges were all analyzed and summarized. We hope this review can act as an updating and encourage more researchers to push on the development of BFO nanomaterials in the future.

scholarly journals Short-Term to Long-Term Plasticity Transition Behavior of Memristive Devices with Low Power Consumption via Facilitating Ionic Drift of Implanted Lithium

Electronics ◽  
2021 ◽  
Vol 10 (21) ◽  
pp. 2564
Author(s):  
Young Pyo Jeon ◽  
Yongbin Bang ◽  
Hak Ji Lee ◽  
Eun Jung Lee ◽  
Young Joon Yoo ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Future Generation ◽  
Information Storage ◽  
Low Power Consumption ◽  
Long Term Memory ◽  
Short Term ◽  
Memristive Device ◽  
Level Information

Recent innovations in information technology have encouraged extensive research into the development of future generation memory and computing technologies. Memristive devices based on resistance switching are not only attractive because of their multi-level information storage, but they also display fascinating neuromorphic behaviors. We investigated the basic human brain’s learning and memory algorithm for “memorizing” as a feature for memristive devices based on Li-implanted structures with low power consumption. A topographical and surface chemical functionality analysis of an Li:ITO substrate was conducted to observe its characterization. In addition, a switching mechanism of a memristive device was theoretically studied and associated with ion migrations into a polymeric insulating layer. Biological short-term and long-term memory properties were imitated with the memristive device using low power consumption.

Optimal design of a high homogeneous and small-size shim coil for atomic spin gyroscope based on 0-1 linear programming

2020 ◽  
Vol 64 (1-4) ◽  
pp. 165-172
Author(s):  
Dongge Deng ◽  
Mingzhi Zhu ◽  
Qiang Shu ◽  
Baoxu Wang ◽  
Fei Yang
Keyword(s):  
Linear Programming ◽  
Power Consumption ◽  
Low Power ◽  
Optimization Design ◽  
Structural Parameters ◽  
Axial Position ◽  
Low Power Consumption ◽  
Optimal Method ◽  
Atomic Spin ◽  
Shim Coil

It is necessary to develop a high homogeneous, low power consumption, high frequency and small-size shim coil for high precision and low-cost atomic spin gyroscope (ASG). To provide the shim coil, a multi-objective optimization design method is proposed. All structural parameters including the wire diameter are optimized. In addition to the homogeneity, the size of optimized coil, especially the axial position and winding number, is restricted to develop the small-size shim coil with low power consumption. The 0-1 linear programming is adopted in the optimal model to conveniently describe winding distributions. The branch and bound algorithm is used to solve this model. Theoretical optimization results show that the homogeneity of the optimized shim coil is several orders of magnitudes better than the same-size solenoid. A simulation experiment is also conducted. Experimental results show that optimization results are verified, and power consumption of the optimized coil is about half of the solenoid when providing the same uniform magnetic field. This indicates that the proposed optimal method is feasible to develop shim coil for ASG.

An Ultra-low Power Consumption MAC Protocol Complied with IEEE 802.15.4/4e for Wireless Smart Utility Networks

2016 ◽  
Vol 136 (11) ◽  
pp. 1555-1566 ◽  
Author(s):  
Jun Fujiwara ◽  
Hiroshi Harada ◽  
Takuya Kawata ◽  
Kentaro Sakamoto ◽  
Sota Tsuchiya ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Ieee 802.15.4 ◽  
Mac Protocol ◽  
Low Power Consumption ◽  
Ultra Low Power
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