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Entangled-photons generation with quantum dots

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Chinese Physics B 2018年第2期27卷 140-153页

作者：李远丁飞 oliver g schmidt Institute for Integrative Nanosciences IFW Dresden HelmholtzstraBe 20. 01069 Dresden. Germany Integrative for Solid State Physics. Leibniz University of Hunnover. AppelstBe 2.30 167 Hannovel germany

Entanglement between particles is a crucial resource in quantum information processing, an important example of which is the exploitation of entangled photons in quantum communication protocols. Among the different available sources of entangled photons, semiconductor quantum dots （QDs） excel owing to their deterministic emission properties, potential for electrical injections, and direct compatibility with semiconductor manufacturing techniques. Despite the great promises, QD-based sources at＇e far from being ideal. In particular, such sources present several critical issues, which require the overcoming of challenges pertaining to spectral tunability, entanglement fidelity, photon indistinguishability and brightness. In this article, we will discuss the potential solutions to these problems and review the recent progress in the field.

关键词： quantum information entangled-photon source quantum dots

Interfacial synthesis of crystalline quasi-two-dimensional polyaniline thin films for high-performance flexible on-chip micro-supercapacitors

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Chinese Chemical Letters 2022年第8期33卷 3921-3924页

作者： Tao Zhang Panpan Zhang Zhongquan Liao Faxing Wang Jinhui Wang Mingchao Wang Ehrenfried Zschech Xiaodong Zhuang oliver g.schmidt Xinliang Feng Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province Ningbo Institute of Material Technology and EngineeringChinese Academy of SciencesNingbo 315201China Faculty of Chemistry and Food Chemistry Technische Universität DresdenDresden 01062Germany Center for Advancing Electronics Dresden(cfaed) Technische Universität DresdenDresden 01062Germany Fraunhofer Institute for Ceramic Technologies and Systems(IKTS) Dresden 01109Germany Material Systems for Nanoelectronics Chemnitz University of TechnologyChemnitz 09107Germany Institute for Integrative Nanosciences IFW DresdenDresden 01069Germany School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative MoleculesShanghai Jiao Tong UniversityShanghai 200240China Key Laboratory for Special Functional Materials of Ministry of Education Henan UniversityKaifeng 475004China

Quasi-two-dimensional(q2 D)conducting polymer thin film synergizes the advantageous features of longrange molecular ordering and high intrinsic conductivity,which are promising for flexible thin film-based micro-supercapacitors(MSCs).Herein,we present the high-performance flexible MSCs based on highly ordered quasi-two-dimensional polyaniline(q2 D-PANI)thin film using surfactant monolayer assisted interfacial synthesis(SMAIS).Owing to high electrical conductivity,rich redox chemistry,and thin-film morphology,the q2 D-PANI MSCs show high volumetric specific capacitance(ca.360 F/cm^(3))and energy density(17.9 m Wh/cm^(3)),which outperform the state-of-art PANI thin-film based MSCs and promise for future flexible electronics.

关键词： 2D polymers Conducting polymers Interfacial synthesis Flexible electronics Microsupercapacitor

Nano energy for miniaturized systems

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Nano Materials Science 2021年第2期3卷 107-112页

作者： Minshen Zhu Feng Zhu oliver g.schmidt Institute for Integrative Nanosciences Leibniz IFW Dresden01069DresdenGermany State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of Sciences130022ChangchunChina Material Systems for Nanoelectronics Chemnitz University of Technology09107ChemnitzGermany Center for Materials Architectures and Integration of Nanomembranes(MAIN)Chemnitz University of Technology09126ChemnitzGermany School of Science Dresden University of TechnologyGermany

Skin mountable electronic devices are in a high-speed development at the crossroads of materials science,electronics,and computer science.Sophisticated functions,such as sensing,actuating,and computing,are integrated into a soft electronic device that can be firmly mounted to any place of human body.These advanced electronic devices are capable of yielding abilities for us whenever they are needed and even expanding our abilities beyond their natural limitations.Despite the great promise of skin mounted electronic devices,they still lack satisfactory power supplies that are safe and continuous.This Perspective discusses the prospects of the development of energy storage devices for the next generation skin mountable electronic devices based on their unique requirements on flexibility and miniaturized size.

关键词： Micro-energy-storage devices Wearability Flexibility Electronics

Editorial for a special issue“Nano energy materials and devices for miniaturized electronics and smart systems”

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Nano Materials Science 2021年第2期3卷 105-106页

作者： Feng Zhu oliver g.schmidt Changchun Institute of Applied Chemistry China Leibniz IFW DresdenGermany Chemnitz Chemnitz University of Technology Germany

The Smart Era urgently demands small-size, low-energy consuming and multi-functional devices which can satisfy versatile application scenarios, including autonomous systems, wireless sensor networks,biomedical equipment, wearable gadgets, and the Internet of Things.This overwhelming trend has drawn much attention and stimulates intensive collaborative efforts spanning diverse fundamental and applied research related to energy generation-harvesting-storage-managementapplications at the small scale. For instance, on one hand.

关键词： energy smart versatile

Recycling of solid-state batteries—challenge and opportunity for a circular economy?

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Materials Futures

Materials Futures 2024年第1期3卷 10-30页

作者： Martine Jacob Kerstin Wissel oliver Clemens 1 Department of Chemical Materials Synthesis University of StuttgartInstitute of Materials ScienceHeisenbergstraße 370569 StuttgartGermany Technical University of Darmstadt Institute of Materials ScienceAlarich-Weiss-Straße 264287 DarmstadtGermany

The tremendous efforts made in the research field of solid-state Li-ion batteries have led to considerable advancement of this technology and the first market-ready systems can be expected in the near future.The research community is currently investigating different solid-state electrolyte classes(e.***.oxides,sulfides,halides and polymers)with a focus on further optimizing the synthesis and electrochemical performance.However,so far,the development of sustainable recycling strategies allowing for an efficient backflow of critical elements contained in these batteries into the economic cycle and thus a transition from a linear to a circular economy lags behind.In this contribution,resource aspects with respect to the chemical value of crucial materials,which are used for the synthesis of solid-state electrolytes are being discussed.Furthermore,an overview of possible approaches in relation to their challenges and opportunities for the recycling of solid-state batteries with respect to different solid-state electrolyte classes by means of pyrometallurgy,hydrometallurgy and direct recycling/dissolution-based separation processes is given.Based on these considerations and with reference to previous research,it will be shown that different solid-state electrolytes will require individually adapted recycling processes to be suitably designed for a circular economy and that further improvements and investigations will be required.

关键词： solid-state batteries solid-state electrolyte recycling circular economy

Flexible MXene films for batteries and beyond

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Carbon Energy 2022年第4期4卷 598-620页

作者： Yang Huang Qiongqiong Lu Dianlun Wu Yue Jiang Zhenjie Liu Bin Chen Minshen Zhu oliver gschmidt Shenzhen Key Laboratory of Polymer Science and Technology College of Materials Science and EngineeringShenzhen UniversityShenzhenChina Institute for Complex Materials Leibniz IFW DresdenDresdenGermany Center for Materials Architecturesand Integration of Nanomembranes(MAIN)Chemnitz University of TechnologyChemnitzGermany Material Systems for Nanoelectronics Chemnitz University of TechnologyChemnitzGermany School of Science Dresden University of TechnologyDresdenGermany

MXenes add dozens of metallic conductors to the family of two-dimensional(2D)materials.A top-down synthesis approach removing A-layer atoms(e.g.,Al,Si,and ga)in MAX phases to produce 2D flakes attaches various surface terminations to MXenes.With these terminations,MXenes show tunable properties,promising a range of applications from energy storage devices to electronics,including sensors,transistors,and antennas.MXenes are also excellent building blocks to create flexible films used for flexible and wearable devices.This article summarizes the synthesis of MXene flakes and highlights aspects that need attention for flexible devices.Rather than listing the development of energy storage devices in detail,we focus on the main challenges of and solutions for constructing high-performance devices.Moreover,we show the applications of MXene films in electronics to call on designs to construct a complete system based on MXene with good flexibility,which consists of a power source,sensors,transistors,and wireless communications.

关键词： 2D materials flexible batteries flexible electronics intelligent system MXene

Recent developments of stamped planar micro-supercapacitors: Materials,fabrication and perspectives

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Nano Materials Science 2021年第2期3卷 154-169页

作者： Fei Li Yang Li Jiang Qu Jinhui Wang Vineeth Kumar Bandari Feng Zhu oliver g.schmidt Material Systems for Nanoelectronics Chemnitz University of Technology09107ChemnitzGermany State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of Sciences130022ChangchunChina Center for Materials Architectures and Integration of Nanomembranes(MAIN)Chemnitz University of Technology09126ChemnitzGermany Institute for Integrative Nanosciences Leibniz IFW Dresden01069DresdenGermany School of Science Dresden University of Technology01062DresdenGermany

The rapid development of wearable and portable electronics has dramatically increased the application for miniaturized energy storage components.Stamping micro-supercapacitors(MSCs)with planar interdigital configurations are considered as a promising candidate to meet the requirements.In this review,recent progress of the different stamping materials and various stamping technologies are first discussed.The merits of each material,manufacturing process of each stamping method and the properties of stamping MSCs are scrutinized,respectively.Further insights on technical difficulties and scientific challenges are finally demonstrated,including the limited thickness of printed electrodes,poor overlay accuracy and printing resolution.

关键词： Microsupercapacitors Stamping Microfabrication Miniaturized electronics Energy storage devices

Unleashing energy storage ability of aqueous battery electrolytes

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Materials Futures 2022年第2期1卷 21-37页

作者： Hongmei Tang Zhe Qu Yaping Yan Wenlan Zhang Hua Zhang Minshen Zhu oliver g schmidt Center for Materials Architecturesand Integration of Nanomembranes(MAIN)TU Chemnitz09126 ChemnitzGermany Material Systems for Nanoelectronics TU Chemnitz09107 ChemnitzGermany Sustainable Materials and Chemistry Department of Wood Technology and Wood-based CompositesUniversity of Goettingen37077 GöttingenGermany School of Science TU Dresden01062 DresdenGermany

Electrolytes make up a large portion of the volume of energy storage devices,but they often do not contribute to energy storage.The ability of using electrolytes to store charge would promise a significant increase in energy density to meet the needs of evolving electronic devices.Redox-flow batteries use electrolytes to store energy and show high energy densities,but the same design cannot be applied to portable or microdevices that require static electrolytes.Therefore,implementing electrolyte energy storage in a non-flow design becomes critical.This review summarizes the requirements for a stable and efficient electrolyte and diverse redox-active species dissolved in aqueous solutions.More importantly,we review the pioneering works using static electrolyte energy storage in the hope that it will pave a new way to design compact and energy-dense batteries.

关键词： aqueous batteries redox-active electrolytes redox-flow batteries cathode-less anode-less

Advanced architecture designs towards high-performance 3D microbatteries

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Nano Materials Science 2021年第2期3卷 140-153页

作者： Yang Li Jiang Qu Fei Li Zhe Qu Hongmei Tang Lixiang Liu Minshen Zhu oliver g.schmidt Material Systems for Nanoelectronics Chemnitz University of Technology09107 ChemnitzGermany Institute for Integrative Nanosciences Leibniz IFW Dresden01069 DresdenGermany Center for Materials Architectures and Integration of Nanomembranes(MAIN)Chemnitz University of Technology09126 ChemnitzGermany School of Science Dresden University of TechnologyDresden01062Germany

Rechargeable microbatteries are important power supplies for microelectronic devices.Two essential targets for rechargeable microbatteries are high output energy and minimal footprint areas.In addition to the development of new high-performance electrode materials,the device configurations of microbatteries also play an important role in enhancing the output energy and miniaturizing the footprint area.To make a clear vision on the design principle of rechargeable microbatteries,we firstly summarize the typical configurations of microbatteries.The advantages of different configurations are thoroughly discussed from the aspects of fabrication technologies and material engineering.Towards the high energy output at a minimal footprint area,a revolutionary design for microbatteries is of great importance.In this perspective,we review the progress of fabricating microbatteries based on the rolled-up nanotechnology,a derivative origami technology.Finally,we discussed the challenges and perspectives in the device design and materials optimization.

关键词： Microbatteries Origami technologies Rolled-up nanotechnology 3D devices Energy storage performance