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| 1 | WSe2 2D p-type semiconductor-based electronic devices for information technology:Design,preparation,and applications显示文摘The pioneering exfoliation of monolayer tungsten diselenide has greatly inspired researchers toward semiconducting applications.WSe2 belongs to a family of transition-metal dichalcogenides.Similar to graphene,WSe2 and analogous dichalcogenides have layered structures with weak van der Waals interactions between two adjacent layers.First,the readers are presented with the fundamentals of WSe2,such as types,morphologies,and properties.Here,we report the characterization principles and practices such as microscopy,spectroscopy,and diffraction.Second,the methods for obtaining high-quality WSe2,such as exfoliation,hydrothermal and chemical vapor deposition,are briefly listed.With advantages of light weight,flexibility,and high quantum efficiency,2D materials may have a niche in optoelectronics as building blocks in p-n junctions.Therefore,we introduce a state-of-the-art demonstration of heterostructure devices employing the p-type WSe2 semiconductor.The device architectures include field-effect transistors,photodetectors,gas sensors,and photovoltaic solar cells.Due to its unique electronic,optical,and energy band properties,WSe2 has been increasingly investigated due to the conductivity of the p-type charge carrier upon palladium contact.Eventually,the dynamic research on WSe2 and van der Waals heterostructures is summarized to arouse the passion of the 2D research community. | Qilin Cheng Jinbo Pang Dehui Sun Jingang Wang Shu Zhang Fan Liu Yuke Chen Ruiqi Yang Na Liang Xiheng Lu Yanchen Ji Jian Wang Congcong Zhang Yuanhua Sang Hong Liu Weijia Zhou | 2020 | InfoMat2020，2，4： | 5 |
| 2 | A free-standing superhydrophobic film for highly efficient removal of water from turbine oil显示文摘A free-standing superhydrophobic film is prepared by sequentially dip-coating a commercially available filter paper with nano SiO2 suspension, epoxy emulsion, and octyltrimethoxysilane solution. A surface with micro- or nano-roughness is formed because SiO2 nanoparticles are uniformly and firmly adhered on the backbone of the filter paper by the cured epoxy resin. Furthermore, the surface energy is significantly reduced because of introducing octytrimethoxysilane. Such a surface structure makes the prepared film a superhydrophobic material. Due to its free-standing nature, this superhydrophobic film can be used to remove water from turbine oil by filtration. The efficiency of water removal is high (up to 94.1%), and the filtration process is driven solely by gravity without extra energy consumption. Because of the facile fabrication process and the high efficiency of water removal, this free-standing superhydrophobic film may find application in power industry. | Fan Shu Meng Wang Jinbo Pang Ping Yu | 2019 | Frontiers of Chemical Science and Engineering2019，13，2： | 5 |
| 3 | Integrated energy storage system based on triboelectric nanogenerator in electronic devices显示文摘The emergence of electronic devices has brought earth-shaking changes to people's life.However,an extemal power source may become indispensable to the electronie devices due to the limited capacity of batteries.As one of the possible solutions for the extermal power sources,the triboelectric nanogenerator(TENG)provides a novel idea to the increasing mumber of personal electronic devices.TENG is a new type of energy ollector,which has become a hot spot in the field of nanotechnology.It is widely used at the acquisition and conversion of mechan-ical enegy to electrice energy through the principle of electrostatic induction.On this basis,the TENG could be integrated with the energy stonage system into a self-powered system,W hich can supply power to the electronic devices and make them work continuously.In this review,TENG's basic structure as well as its working process and working mode are firstly discussed.The integration method of TENGs with enegy storage systems and the related research status are then introduced in detail.At the end of this paper,we put forward some problems and discuss the prospect in the future. | Xiao Feng Yang Zhang Le Kang Licheng Wang Chongxiong Duan Kai Yin Jinbo Pang Kai Wang | 2021 | Frontiers of Chemical Science and Engineering2021，15，2： | 5 |
| 4 | Kombucha SCOBY-based carbon and graphene oxide wrapped sulfur/polyacrylonitrile as a high-capacity cathode in lithium-sulfur batteries显示文摘Hierarchically-porous carbon nano sheets were prepared as a conductive additive for sulfur/polyacrylonitrile(S/PAN)composite cathodes using a simple heat treatment.In this study,kombucha(that was derived from symbiotic culture of bacteria and yeast)carbon(KC)and graphene oxide(GO)were used as a carbon host matrix.These rational-designed S/PAN/KC/GO hybrid composites greatly suppress the diffusion of polysulfides by providing strong physical and chemical adsorption.The cathode delivered an initial discharge capacity of 1652 mAh·g^-1 at a 0.1 C rate and a 100th cycle capacity of 1193 mAh·g^-1.The nano sheets with embedded hierarchical pores create a conductive network that provide effective electron transfer and fast electrochemical kinetics.Further,the nitrogen component of PAN can raise the affinity/interaction of the carbon host with lithium polysulfides,supporting the cyclic performance.The results exploit the cumulative contribution of both the conductive carbon matrix and PAN in the enhanced performance of the positive electrode. | Krishnaveni Kalaiappan Subadevi Rengapillai Sivakumar Marimuthu Raja Murugan Premkumar Thiru | 2020 | Frontiers of Chemical Science and Engineering2020，14，6： | 1 |
| 5 | A thermally flexible and multi-site tactile sensor for remote 3D dynamic sensing imaging显示文摘A flexible,multi-site tactile and thermal sensor(MTTS)based on polyvinylidene fluoride(resolution 50×50)is reported.It can be used to implement spatial mapping caused by tactile and thermal events and record the two-dimensional motion trajectory of a tracked target object.The output voltage and current signal are recorded as amapping by sensing the external pressure and thermal radiation stimulus,and the response distribution is dynamically observed on the three-dimensional interface.Through the mapping relationship between the established piezoelectric and pyroelectric signals,the piezoelectric component and the pyroelectric component are effectively extracted from the composite signals.The MTTS has a good sensitivity for tactile and thermal detection,and the electrodes have good synchronism.In addition,the signal interference is less than 9.5%and decreases as the pressure decreases after the distance between adjacent sites exceeds 200μm.The integration of MTTS and signal processing units has potential applications in human-machine interaction systems,health status detection and smart assistive devices. | Guoting Xia Yinuo Huang Fujiang Li Licheng Wang Jinbo Pang Liwei Li Kai Wang | 2020 | Frontiers of Chemical Science and Engineering2020，14，6： | 1 |
| 6 | Fabrication of nanofibrous sensors by electrospinning显示文摘This article reviews the techniques and applications of electrospinning for the fabrication of nanofibrous sensors. Considering that nanosensors require a large specific surface area and a continuous structure for the conduction of current signals, electrospun nanofibers have the dominant advantage. The device preparation is mainly divided into surface treatment and high-temperature sintering, which are, respectively, used for preparing composite conductive fibers and inorganic semiconductor fibers. Typical applications include pressure sensing, gas sensing, photoelectric sensing, and temperature sensing. In addition, nano-selfpowered systems have been mentioned to emphasize the good performance of smart nanosystems that do not require external power. In addition, we have summarized some existing methods and suggestions for increasing the specific surface area and presented constructive ideas for the future development of these devices. | HAN WeiHua WANG YuZhi SU JianMin XIN Xin GUO YinDa LONG Yun-Ze RAMAKRISHNA Seeram | 2019 | Science China(Technological Sciences)2019，62，6： | 1 |
| 7 | Applications of 2D-Layered Palladium Diselenide and Its van der Waals Heterostructures in Electronics and Optoelectronics显示文摘The rapid development of two-dimensional(2D)transition-metal dichalcogenides has been possible owing to their special structures and remarkable properties.In particular,palladium diselenide(PdSe_(2))with a novel pentagonal structure and unique physical characteristics have recently attracted extensive research inter-est.Consequently,tremendous research progress has been achieved regarding the physics,chemistry,and electronics of PdSe_(2).Accordingly,in this review,we recapitulate and summarize the most recent research on PdSe_(2),including its structure,properties,synthesis,and appli-cations.First,a mechanical exfoliation method to obtain PdSe_(2) nanosheets is introduced,and large-area synthesis strate-gies are explained with respect to chemical vapor deposition and metal selenization.Next,the electronic and optoelectronic properties of PdSe_(2) and related hetero-structures,such as field-effect transistors,photodetectors,sensors,and thermoelec-tric devices,are discussed.Subsequently,the integration of systems into infrared image sensors on the basis of PdSe_(2) van der Waals heterostructures is explored.Finally,future opportunities are highlighted to serve as a general guide for physicists,chemists,materials scientists,and engineers.Therefore,this com-prehensive review may shed light on the research conducted by the 2D material community. | Yanhao Wang Jinbo Pang Qilin Cheng Lin Han Yufen Li Xue Meng Bergoi Ibarlucea Hongbin Zhao Feng Yang Haiyun Liu Hong Liu Weijia Zhou Xiao Wang Mark HRummeli Yu Zhang Gianaurelio Cuniberti | 2021 | Nano-Micro Letters2021，13，9： | 1 |
| 8 | 扁塑藤素对非小细胞肺癌增殖及线粒体膜电位的调节作用显示文摘目的分析扁塑藤素对体内外非小细胞肺癌增殖及线粒体膜电位的调节作用,初步探讨扁塑藤素的抑瘤增殖效果及可能机制.方法将适量的扁塑藤素提取物分别作用于非小细胞肺癌细胞系(A549及H226)及动物模型(BALB/c裸鼠),应用MTT方法测定其细胞存活率,应用细胞集落实验检测其长期毒性作用.制备A549非小细胞肺癌裸鼠模型,测定PTM对移植瘤体积及湿重的生长抑制.应用流式细胞术测定PTM共培养后细胞线粒体膜电位.结果与空白对照组比较,A549和H226两组细胞随PTM剂量的增加及共培养时间的延长细胞的平均存活率显著降低.与对照组(PTM:0μmol/L)比较,0.1μmol/L组A549及H226的细胞集落形成均受到抑制,并且0.2μmol/L组的细胞集落形成抑制更为明显.PTM腹腔内注射治疗第7天,PTM 2 mg/kg治疗组的移植瘤(A549)体积抑制作用优于PTM 1 mg/kg治疗组(P<0.05).湿重对比分析结果显示:PTM 2mg/kg治疗组移植瘤湿重低于空白组及PTM 1 mg/kg治疗组(P<0.05).流式细胞术测定结果显示:PTM(8μmol/L)对各组细胞(A549和H226)作用时间持续3 h即可导致细胞线粒体膜电位下降,持续6 h时线粒体膜电位下降更为明显,提示PTM作用时长与细胞(A549和H226)线粒体膜电位呈负性相关.结论 PTM对体内外非小细胞肺癌(A549和H226)的细胞抑制作用存在剂量和时间依赖性,并初步证明PTM具有诱导细胞线粒体去极化的作用. | 吴雷 王玲玲 | 2021 | 北华大学学报(自然科学版)2021，22，3： | 0 |
| 9 | Ultrathin microcrystalline hydrogenated Si/Ge alloyed tandem solar cells towards full solar spectrum conversion显示文摘Thin film solar cells have been proved the next generation photovoltaic devices due to their low cost,less material consumption and easy mass production.Among them,micro-crystalline Si and Ge based thin film solar cells have advantages of high efficiency and ultrathin absorber layers.Yet individual junction devices are limited in photoelectric conversion efficiency because of the restricted solar spectrum range for its specific absorber.In this work,w e designed a nd simulated a multi-junction solar cell with its four sub-cells selectively absorbing the full solar spectrum including the ultraviolet,green,red as well as near infrared range,respectively.B y tuning the G e content,the record efficiency of 24.80%has been realized with the typical quadruple junction structure of a-Si:H/a-Si0.9Ge0.1:H/μc-Si:H/μc-Si0.5Ge0.5:H.To further reduce the material cost,thickness dependent device performances have been conducted.It can be found that the design of total thickness of 4μm is the optimal device design in balancing the thickness a nd the PCE.While the design of ultrathin quadruple junction device with total thickness of 2μm is the optimized device design regarding cost and long-term stability with a little bit more reduction in PCE.These results indicated that our solar cells combine the advantages of low cost and high stability.Our work may provide a general guidance rule of utilizing the full solar spectrum for developing high efficiency and ultrathin multi-junction solar cells. | Yu Cao Xinyun Zhu Xingyu Tong Jing Zhou Jian Ni Jianjun Zhang Jinbo Pang | 2020 | Frontiers of Chemical Science and Engineering2020，14，6： | 0 |
| 10 | Preparation and application of carbon nanotubes flexible sensors显示文摘Based on the good extensibility and conductivity,the flexible sensors(FSs)have a wide range of applications in the field of the electrochemical energy storage and variable stress sensors,which causes that the preparation of FSs also become a hot spot of research.Among the materials for preparing the FSs,the flexible carbon matrix composites(FCMCs)have become the widely used material since the good performance in the properties of electrochemistry and mechanics,which could be divided into three types:the carbon nanofibers(CNFs),the carbon nanospheres(CNSs)and the carbon nanotubes(CNTs).Compared with CNFs and CNSs,the CNTs wrapped by the polydimethylsiloxane(PDMS)have the advantages of the excellent extensibility and electrochemical stability.Therefore,the CNTs flexible sensor(CFS)could be well used in the field of the FSs.The purpose of this review is summarizing the preparation methods and application fields of CFS and proposing the research direction of CFS in the future.In this paper,two methods for fabricating the CFS have been designed by consulting the methods mentioned in the literature in recent years,and the advantages and disadvantages between the two methods have been explained.The application fields of CFS in recent years are enumerated,and the conclusion that the application fields of CFS are very wide is drawn.At the end of this paper,the review concludes with an overview of key remaining challenges in the application fields of the CFS. | Shuo Li Xiao Feng Hao Liu Kai Wang Yun-Ze Long SRamakrishna | 2019 | Journal of Semiconductors2019，40，11： | 0 |
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