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Editorial for special issue on photonics based on two-dimensional noncarbon materials

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Chinese Optics Letters 2018年第2期16卷 1-2页

作者： Han Zhang Haibo Zeng qiaoliang bao Shenzhen University China Nanjing University of Science and Technology China Monash University Australia

Scientists are in the constant search of novel materials,or innovative applications of existing materials to solve problems we face in our everyday *** graphene,the two-dimensional（2D）form of carbon,has been a star player for the past decade,there is a significant shift towards other noncarbon materials in recent *** from the large family of transition metal dichalcogenides（TMDs）,mono-elemental materials,such as phosphorene,arsenene,antimonene.

关键词： Editorial for special issue on photonics based on two-dimensional noncarbon materials

Editorial for special issue on extraordinary 2D-materials-based nanophotonics

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Chinese Optics Letters 2019年第2期17卷 5-6页

作者： Han Zhang Haibo Zeng qiaoliang bao Shenzhen University China Nanjing University of Science and Technology China Monash University Australia

The emergence of new materials can push scientific development and even lead to a new industrial revolution. The discovery of graphene has attracted more and more attention from society due to their excellent optics and electricity properties. Graphene has been widely used in optoelectronic devices, such as an optical modulator, polarizer, photoelectric detector, and ultrafast laser. In addition, there is a remarkable transition towards other nanomaterials in recent *** from topological insulators (TIs).

关键词： Editorial special issue 2D-materials-based

Agglomerating Growth of One-Dimensional Carbon Nano-Materials Synthesized from Ethanol Flames

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Wuhan University Journal of Natural Sciences 2006年第3期11卷 581-584页

作者： bao qiaoliang PAN Chunxu School of Physics Science and Technology Wuhan University Wuhan 430072 Hubei China

One-dimensional carbon nano-materials （ODCNMs） synthesized from ethanol flames exhibit various agglomerated morphologies, such as ＂chrysanthemum-like＂, ＂hairball-like＂ or ＂orange-peel-like＂, ＂vertically aligned＂ and ＂wrinkling-pileup＂. The present work studied the agglomerating process and the growth mechanism by using scanning electron microscopy （SEM） and transmission electron microscopy （TEM）. It is thought that the size and distribution of the catalyst particles produced from pretreatment of the substrates play a key role during the formation of agglomerations. It is expected that the steady growth of ODCNMs in flames will be improved through the preparation of the catalysts.

关键词： carbon nano-materials flame synthesis method agglomerate electron microscopy

Strong interactions in molybdenum disulfide heterostructures boosting the catalytic performance of water splitting: A short review

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Nano Materials Science 2019年第4期1卷 231-245页

作者： Bo Shang Lin Jiao qiaoliang bao Changming Li Xiaoqiang Cui Key Laboratory of Automobile Materials of MOE School of Materials Science and EngineeringJilin University2699 Qianjin StreetChangchun130012People's Republic of China Department of Materials Science and Engineering ARC Centre of Excellence in Future Low-Energy Electronics Technologies(FLEET)Monash UniversityClaytonVictoria3800Australia Institute of Advanced Cross-field Science College of Life ScienceQingdao UniversityChina

Two-dimensional materials(2DMs) have attracted substantial attention due to their abundant active sites and their ultrahigh surface area for different catalytic applications due to the high lateral-longitudinal ratio. Transition metal dichalcogenides(TMDs), especially MoS2, as one of the 2DMs most often studied, have shown superior activity in electrochemical applications. Recently, combinations of different 2DMs have been widely studied, and they appear to be the most promising strategy available to develop state of the art catalysts for different *** this article, we review the interactions between MoS2 and other materials as well as the novel assembly induced phase transitions of TMDs and their underlying mechanisms. Several methods for inducing the phase transition of TMDs by building MoS2-based heterostructures have been introduced. The electronic coupling between these counterparts has significantly enhanced their conductivity and optimized the energy states of the materials, thus introducing enhanced activity as compared to their original counterparts. The ideas summarized in this article may shed new light on and help to develop next-generation green energy materials by designing and constructing highly active two-dimensional catalysts for efficient water splitting.

关键词： Molybdenum disulfide Heterostructure Phase transition Interaction Water splitting

Black phosphorus induced photo-doping for high-performance organic-silicon heterojunction photovoltaics

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Nano Research 2017年第11期10卷 3848-3856页

作者： Zhouhui Xia Pengfei Li Yuqiang Liu Tao Song qiaoliang bao Shuit-Tong Lee baoquan Sun Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Institute of Functional Nano and Soft Materials(FUNSOM)Soochow University Suzhou 215123 China Department of Materials Science and Engineering Monash University Clayton Victoria 3800 Australia

In conventional crystalline silicon （Si） homojunction solar cells,a strategy of doping by transporting phosphorus or boron impurities into Si is commonly used to build Ohmic contacts at rear ***,this technique involves an energy intensive,high temperature （～ 800 ℃） process and toxic doping *** phosphorus （BP） is a two-dimensional,narrow bandgap semiconductor with high carrier mobility that exhibits broad light harvesting ***,we place BP：zinc oxide （ZnO） composite films between Si and aluminum （Al） to improve their *** the BP harvests photons with energies below 1.1 eV from the crystalline Si,the ZnO carrier concentration increases dramatically due to charge *** photo-induced doping results in a high carrier concentration in the ZnO film,mimicking the modulated doping technique used in semiconductor *** show that photo-induced carriers dramatically increase the conductivities of the BP-modified ZnO films,thus reducing the contact resistance between Si and Al.A photovoltaic power conversion efficiency of 15.2% is achieved in organic-Si heterojunction solar cells that use a ZnO：BP *** findings demonstrate an effective way of improving Si/metal contact via a simple,low temperature process.

关键词： black phosphorus zinc oxide light induced dopant photovoltaics

Band structure engineering in metal halide perovskite nanostructures for optoelectronic applications

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Nano Materials Science 2019年第4期1卷 268-287页

作者： Qingdong Ou Xiaozhi bao Yinan Zhang Huaiyu Shao Guichuan Xing Xiangping Li Liyang Shao qiaoliang bao Department of Materials Science and Engineering ARC Centre of Excellence in Future Low-Energy Electronics Technologies(FLEET)Monash UniversityClaytonVictoria3800Australia Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials Engineering(IAPME)University of MacaoMacaoPeople's Republic of China Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications Institute of Photonics TechnologyJinan UniversityGuangzhou510632People's Republic of China Department of Electrical and Electronic Engineering Southern University of Science and TechnologyShenzhen518055GuangdongPeople's Republic of China

Metal halide perovskite nanostructures have emerged as low-dimensional semiconductors of great significance in many fields such as photovoltaics,photonics,and *** efforts on the controlled synthesis of perovskite nanostructures have been made towards potential device *** engineering of their band structures holds great promise in the rational tuning of the electronic and optical properties of perovskite nanostructures,which is one of the keys to achieving efficient and multifunctional optoelectronic *** this article,we summarize recent advances in band structure engineering of perovskite nanostructures.A survey of bandgap engineering of nanostructured perovskites is firstly presented from the aspects of dimensionality tailoring,compositional substitution,phase segregation and transition,as well as strain and pressure *** strategies of electronic doping are then reviewed,including defect-induced self-doping,inorganic or organic molecules-based chemical doping,and modification by metal ions or *** on the bandgap engineering and electronic doping,discussions on engineering energy band alignments in perovskite nanostructures are provided for building high-performance perovskite p-n junctions and *** last,we provide our perspectives in engineering band structures of perovskite nanostructures towards future low-energy optoelectronics technologies.

关键词： Band structure engineering Perovskite nanostructures Optoelectronic applications Doping Heterostructures

Editorial for a special issue on two-dimensional nanomaterials

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Nano Materials Science 2019年第4期1卷 229-230页

作者： qiaoliang bao Monash University

The isolation of single layer graphene and its outstanding physical,chemical and mechanical properties has paved the way for both exploring the existing layered materials and developing novel twodimensional(2D)*** science behind 2D nanomaterials is beautiful and closely related to the dimensionality *** the past few years,tremendous efforts have been made investigating the material’s preparation,characterizing its fundamental properties and demonstrating its technological *** particular,the emergence of 2D organic semiconductors and 2D non-layered organic-inorganic hybrid perovskites have led to new opportunities for cost-effective electronics and green energy applications.

关键词： perovskite inorganic preparation

Wide-field in situ multiplexed Raman imaging with superresolution

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Photonics Research 2018年第6期6卷 530-534页

作者： HOUKAI CHEN XIAOJING WU YUQUAN ZHANG YONG YANG CHANGJUN MIN SIWEI ZHU XIAOCONG YUAN qiaoliang bao JING BU Nanophotonics Research Center Shenzhen Key Laboratory of Micro-Scale Optical Information Technology Shenzhen UniversityShenzhen 518060 China Tianjin Union Medical Center Tianjin 300121 China Institute of Modern Optics Nankai University Tianjin 300071 China College of Electronic Science and Technology Shenzhen UniversituyShenzhen 518060 China

Because of the fingerprint-like specificity of its characteristic spectrogram, Raman spectral imaging has been applied widely in various research areas. Using a combination of structured illumination with the surface- enhanced Raman scattering （SERS） technique, wide-field Raman imaging is developed with a significant improve- ment in spatial resolution. As a result of the relatively narrow Raman characteristic peaks, optically encoded SERS nanoparticles can be used to perform multiplexed imaging. The results show excellent superresolution wide-fidd multiplexed imaging performance. The developed technique has extraordinary potential for applications in biological imaging and other related fields.

关键词： Raman microscopy Surface-enhanced Raman scattering Superresolution

Monolayer Graphene as a Saturable Absorber in a Mode-Locked Laser

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Nano Research 2011年第3期4卷 297-307页

作者： qiaoliang bao Han Zhang Zhenhua Ni Yu Wang Lakshminarayana Polavarapu Zexiang Shen Qing-Hua Xu Dingyuan Tang Kian Ping Loh Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore School of Electrical and Electronic Engineering Nanyang Technological University Singapore 639798 Singapore School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore These authors contributed equally to this work.

We demonstrate that the intrinsic properties of monolayer graphene allow it to act as a more effective saturable absorber for mode-locking fiber lasers when compared to multilayer graphene. The absorption of monolayer graphene can be saturated at lower excitation intensity compared to multilayer graphene, graphene with wrinkle-like defects, or functionalized graphene. Monolayer graphene has a remarkably large modulation depth of 65.9%, whereas the modulation depth of multilayer graphene is greatly reduced due to nonsaturable absorption and scattering loss. Picosecond ultrafast laser pulses （1.23 ps） can be generated using monolayer graphene as a saturable absorber. Due to the ultrafast relaxation time, larger modulation depth and lower scattering loss of monolayer graphene, it performs better than multilayer graphene in terms of pulse shaping ability, pulse stability, and output energy.

关键词： Graphene saturable absorber laser carrier dynamics ultrafast photonics