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| 1 | Fast-moving target tracking based on mean shift and frame-difference methods显示文摘The mean shift tracker has difficulty in tracking fast moving targets and suffers from tracking error accumulation problem.To overcome the limitations of the mean shift method,a new approach is proposed by integrating the mean shift algorithm and frame-difference methods.The rough position of the moving target is first located by the direct frame-difference algorithm and three-frame-difference algorithm for the immobile camera scenes and mobile camera scenes,respectively.Then,the mean shift algorithm is used to achieve precise tracking of the target.Several tracking experiments show that the proposed method can effectively track first moving targets and overcome the tracking error accumulation problem. | Hongpeng Yin Yi Chai Simon X. Yang Xiaoyan Yang | 2011 | Journal of Systems Engineering and Electronics2011，22，4： | 31 |
| 2 | Ambient volatile organic compounds pollution in China显示文摘Owing to rapid economic and industrial development,China has been suffering from degraded air quality and visibility. Volatile organic compounds(VOCs)are important precursors to the formation of ground-level ozone and hence photochemical smog. Some VOCs adversely affect human health. Therefore,VOCs have recently elicited public concern and given new impetus to scientific interest. China is now implementing a series of polices to control VOCs pollution. The key to formulating policy is understanding the ambient VOCs pollution status. This paper mainly analyzes the species,levels,sources,and spatial distributions of VOCs in ambient air. The results show that the concentrations of ambient VOCs in China are much higher than those of developed countries such as the United States and Japan,especial benzene,which exceeds available standards. At the same time,the ozone formation potential(OFP)and secondary organic aerosol formation potential(SOAFP)of various VOCs are calculated. Aromatics and alkenes have much higher OFPs,while aromatics have higher SOAFP. The OFPs of ambient VOCs in the cities of Beijing,Guangzhou and Changchun are very high,and the SOAFP of ambient VOCs in the cities of Hangzhou,Guangzhou and Changchun are higher. | Xinmin Zhang Zhigang Xue Hong Li Li Yan Yuan Yang Yi Wang Jingchun Duan Lei Li Fahe Chai Miaomiao Cheng Weiqi Zhang | 2017 | Journal of Environmental Sciences2017，29，5： | 34 |
| 3 | Sodium tanshinone IIA sulfonate protects rat myocardium against ischemia-reperfusion injury via activation of PI3K/Akt/FOXO3A/Bim pathway显示文摘 | Mei-qi ZHANG Yue-liang ZHENG Huan CHEN Jian-feng TU Ye SHEN Jun-ping GUO Xiang-hong YANG Shu-ren YUAN Liang-zhong CHEN Jing-jie CHAI Jian-hong LU Chang-lin ZHAI | 2013 | Acta Pharmacologica Sinica2013，34，11： | 30 |
| 4 | Microstructure and Mechanical Properties of C/C-ZrC-SiC Composites Fabricated by Reactive Melt Infiltration with Zr,Si Mixed Powders显示文摘To meet the increasing demand for advanced materials capable of operation over 2000℃for future thermal protection systems application,C/C—ZrC—SiC composites were fabricated by reactive melt infiltration(RMI) with Zr,Si mixed powders as raw materials.The structural evolution and formation mechanism of the C/C—ZrC -SiC composites were discussed,and the mechanical property of the as-prepared material was investigated by compression test.The results showed that after the RMI process,a special structure with ZrC-SiC multi-coating as outer layer and ZrC-SiC-PyC ceramics as inner matrix was formed.ZrC and SiC rich areas were formed in the composites and on the coating surface due to the formation of Zr-Si intermetallic compounds in the RMI process.Mechanical tests showed that the average compression strength of the C/C-ZrC-SiC composites was 133.86 MPa,and the carbon fibers in the composites were not seriously damaged after the RMI process. | Xin Yang Zhean Su Qizhong Huang Xiao Fang Liyuan Chai | 2013 | Journal of Materials Science & Technology2013，29，8： | 25 |
| 5 | Progresses on microwave remote sensing of land surface parameters显示文摘Highly accurate observations at various scales on the land surface are urgently needed for the studies of many areas,such as hydrology,meteorology,and agriculture.With the rapid development of remote sensing techniques,remote sensing has had the capacity of monitoring many factors of the Earth's land surface.Especially,the space-borne microwave remote sensing systems have been widely used in the quantitative monitoring of global snow,soil moisture,and vegetation parameters with their all-weather,all-time observation capabilities and their sensitivities to the characteristics of land surface factors.Based on the electromagnetic theories and microwave radiative transfer equations,researchers have achieved great successes in the microwave remote sensing studies for different sensors in recent years.This article has systematically reviewed the progresses on five research areas including microwave theoretical modeling,microwave inversion on soil moisture,snow,vegetation and land surface temperatures.Through the further enrichment of remote sensing datasets and the development of remote sensing theories and inversion techniques,remote sensing including microwave remote sensing will play a more important role in the studies and applications of the Earth systems. | SHI JianCheng DU Yang DU JinYang JIANG LingMei CHAI LinNa MAO KeBiao XU Peng NI WenJian XIONG Chuan LIU Qiang LIU ChenZhou GUO Peng CUI Qian LI YunQing CHEN Jing WANG AnQi LUO HeJia WANG YinHui | 2012 | Science China Earth Sciences2012，55，7： | 24 |
| 6 | Effect of Magnesium on Inclusion Formation in Ti-Killed Steels and Microstructural Evolution in Welding Induced Coarse-Grained Heat Affected Zone显示文摘Effects of Mg on the chemical component and size distribution of Ti-bearing inclusions favored grain refine- ment of the welding induced coarse-grained heat affected zone (CGHAZ),with enhanced impact toughness in Ti-kill- ed steels,which were examined based on experimental observations and thermodynamic calculations.The results in- dicated that the chemical constituents of the inclusions gradually varied from the Ti-O+Ti-Mg-O compound oxide to the Ti-Mg-O+MgO compound oxide and the single-phase MgO,as the Mg content increased from 0.002 3% to 0.006%.A trace addition of Mg (approximately 0.002%) led to the refinement of Ti-bearing inclusions by creating the Ti-Mg-O compound oxide and provided favorable size distribution of the inclusions for acicular ferrite transforma- tion with a high nucleation rate in the CGHAZ,and a high volume fraction of acicular ferrite was obtained in the CGHAZ with enhanced impact toughness.Otherwise,a high content of Mg (approximately 0.006%) produced a single-phase MgO,which was impotent to nucleate an acicular ferrite,and a microstructure comprised of a ferrite side plate and a grain boundary ferrite developed in the CGHAZ.The experimental results were confirmed by ther- modynamic calculations. | CHAI Feng YANG Cai-fu SU Hang ZHANG Yong-quan XU Zhou | 2009 | Journal of Iron and Steel Research(International)2009，16，1： | 22 |
| 7 | EFFECT OF Zr ADDITION TO Ti-KILLED STEEL ON INCLUSION FORMATION AND MICROSTRUCTURAL EVOLUTION IN WELDING INDUCED COARSE-GRAINED HEAT AFFECTED ZONE显示文摘化学部件和忍受 Ti 包括的尺寸分发上的锆的效果,赞成了导致的、纹理粗糙的热影响了的焊接的谷物精炼地区(CGHAZ ) 与在杀死 Ti 的钢提高了影响坚韧,它基于试验性的观察和热力学的计算被检验。它显示包括的化学成分逐渐地从 Ti-O 氧化物变化了到 Ti-O+Zr-O 复合氧化物和 ZrO2 氧化物的一个单个阶段,作为内容从零增加了到 0.0100% 的 Zr。 Zr 的踪迹(0.0030%0.0080%,在液体钢取决于氧内容)因为 ZrO2 氧化物的更大的特定的密度,为 Ti 氧化物提供了大量起核心作用的核心,并且生产了有利的包括的小尺寸分布因为有在 CGHAZ 的高成核率的针状的铁酸盐转变,和针状的铁酸盐的大量的部分在 CGHAZ 被获得,与提高的影响坚韧。否则, Zr (0.0100%) 的一个高内容生产了单个阶段 ZrO2,它是无力的起核心作用由铁酸盐方面板组成的针状的铁酸盐和谷物边界铁酸盐在 CGHAZ 发展了。试验性的结果被热力学的计算证实。 | F. Chai C.F. Yang H. Su Y.Q. Zhang Z. Xu Y.H. Yang | 2008 | Acta Metallurgica Sinica(English Letters)2008，21，3： | 18 |
| 8 | Human-Tracking Strategies for a Six-legged Rescue Robot Based on Distance and View显示文摘Human tracking is an important issue for intelligent robotic control and can be used in many scenarios, such as robotic services and human-robot cooperation. Most of current human-tracking methods are targeted for mobile/tracked robots, but few of them can be used for legged robots. Two novel human-tracking strategies, view priority strategy and distance priority strategy, are proposed specially for legged robots, which enable them to track humans in various complex terrains. View priority strategy focuses on keeping humans in its view angle arrange with priority, while its counterpart, distance priority strategy, focuses on keeping human at a reasonable distance with priority. To evaluate these strategies, two indexes(average and minimum tracking capability) are defined. With the help of these indexes, the view priority strategy shows advantages compared with distance priority strategy. The optimization is done in terms of these indexes, which let the robot has maximum tracking capability. The simulation results show that the robot can track humans with different curves like square, circular, sine and screw paths. Two novel control strategies are proposed which specially concerning legged robot characteristics to solve human tracking problems more efficiently in rescue circumstances. | PAN Yang GAO Feng QI Chenkun CHAI Xun | 2016 | Chinese Journal of Mechanical Engineering2016，29，2： | 17 |
| 9 | Characteristics of and strategies for patients with severe burn-blast combined injury显示文摘背景严重灼伤强风联合了损害是对为它的高死亡的医疗队的大挑战。这研究的目的是阐明损害并且到现在的临床的特征我们有严重灼伤强风的五个病人联合了的如此的 cases.Methods 的治疗上的临床的经验损害进入我们在 2005 年 6 月 7 日 77 个小时损害以后的医院。灼伤程度从 80% ~ 97%(89.6% 鞪? 亘吗?? | CHAI Jia-ke SHENG Zhi-yong LU Jiang-yang WEN Zhong-guang YANG Hong-ming JIA Xiao-ming LI Li-gen CAO Wei-hong HAO Dai-feng SHEN Chuan-an TUO Xiao-ye LIANG Li-ming WANG Shu-jun | 2007 | Chinese Medical Journal2007，，20： | 17 |
| 10 | Ge-Gen Decoction attenuates oxytocin-induced uterine contraction and writhing response: potential application in primary dysmenorrhea therapy显示文摘The uterine tetanic contraction and uterine artery blood flow reduction are possible reasons for primary dysmenorrhea(PD). In the present study, we aimed to evaluate the uterine relaxant effect and the influence on uterine artery blood velocity of Ge-Gen Decoction(GGD), a well-known Chinese herbal formula. In female ICR mice, uterine contraction was induced by oxytocin exposure following estradiol benzoate pretreatment, and the uterine artery blood velocity was detected by Doppler ultrasound. Histopathological examination of the uterine tissue samples were performed by H&E staining. Ex vivo studies demonstrated that oxytocin, posterior pituitary, or acetylcholine induced contractions in isolated mouse uterus. GGD inhibited both spontaneous and stimulated contractions. In vivo study demonstrated that GGD significantly reduced oxytocin-induced writhing responses with a maximal inhibition of 87%. Further study demonstrated that GGD normalized oxytocin-induced abnormalities of prostaglandins F_2 alpha(PGF_(2α)) and Ca^(2+) in mice. In addition, injection of oxytocin induced a decrease in uterine artery blood flow velocity. Pretreatment with GGD reversed the oxytocin response on blood flow velocity. Histopathological examination showed pretreatment with GGD alleviated inflammation and edema in the uterus when compared with the model group. Both ex vivo and in vivo results indicated that GGD possessed a significant spasmolytic effect on uterine tetanic contraction as well as improvement on uterine artery blood velocity which may involve PGF_(2α) and Ca^(2+) signaling, suggesting that GGD may have a clinic potential in PD therapy. | YANG Lu CHAI Cheng-Zhi YUE Xin-Yi YAN Yan KOU Jun-Ping CAO Zheng-Yu YU Bo-Yang | 2016 | Chinese Journal of Natural Medicines2016，14，2： | 17 |
| 11 | Molecular diversity and genetic structure of 380 sweetpotato accessions as revealed by SSR markers显示文摘Sweetpotato, Ipomoea batatas(L.) Lam., is an important food crop widely cultivated in the world. Evaluation of genetic relationships among diverse cultivars and landraces is necessary for efficient exploitation of genetic diversity in the existing germplasm resources. In the present study, a collection of 380 sweetpotato accessions assembled from different agro-climatic zones of China and other countries were genotyped using 30 SSR primer pairs. Model-based structure analysis separated the germplasm into three populations, P1, P2 and P3, containing 228, 133 and 19 accessions, respectively, which was consistent with the results of phylogenic and principal component analysis(PCA). Analysis of molecular variance(AMOVA) revealed significant genetic differentiation among inferred populations, accounting for 16.47% of the total molecular variance, however, the differences between the regions were not significant, the total variation were due to the differences between the genotypes within the population. Pairwise fixation index(F ST) suggested that populations P1 and P3 had the highest differentiation, while populations P1 and P2 had the lowest differentiation. The diversity among populations was wide, which confirmed the genetic distinction of populations. Through comparing model-based structure and domestication-based classification, it was found that the accessions of population P1 mainly belonged to modern cultivars, and the accessions of populations P2 and P3 basically corresponded to landraces, by which we suggest that modern cultivars maybe had experienced a two-step domestication history. Our results illustrated clear genetic relationships among 380 sweetpotato accessions, exhibiting the potential of accelerating the process of future sweetpotato breeding program by molecular marker based parental selection. | YANG Xin-sun SU Wen-jin WANG Lian-jun LEI Jian CHAI Sha-sha LIU Qing-chang | 2015 | Journal of Integrative Agriculture2015，14，4： | 16 |
| 12 | Method for Six-Legged Robot Stepping on Obstacles by Indirect Force Estimation显示文摘Adaptive gaits for legged robots often requires force sensors installed on foot-tips,however impact,temperature or humidity can affect or even damage those sensors.Efforts have been made to realize indirect force estimation on the legged robots using leg structures based on planar mechanisms.Robot Octopus III is a six-legged robot using spatial parallel mechanism(UP-2UPS) legs.This paper proposed a novel method to realize indirect force estimation on walking robot based on a spatial parallel mechanism.The direct kinematics model and the inverse kinematics model are established.The force Jacobian matrix is derived based on the kinematics model.Thus,the indirect force estimation model is established.Then,the relation between the output torques of the three motors installed on one leg to the external force exerted on the foot tip is described.Furthermore,an adaptive tripod static gait is designed.The robot alters its leg trajectory to step on obstacles by using the proposed adaptive gait.Both the indirect force estimation model and the adaptive gait are implemented and optimized in a real time control system.An experiment is carried out to validate the indirect force estimation model.The adaptive gait is tested in another experiment.Experiment results show that the robot can successfully step on a 0.2 m-high obstacle.This paper proposes a novel method to overcome obstacles for the six-legged robot using spatial parallel mechanism legs and to avoid installing the electric force sensors in harsh environment of the robot's foot tips. | XU Yilin GAO Feng PAN Yang CHAI Xun | 2016 | Chinese Journal of Mechanical Engineering2016，29，4： | 16 |
| 13 | The Prospective Two-Dimensional Graphene Nanosheets: Preparation, Functionalization, and Applications显示文摘Graphene, as an intermediate phase between fullerene and carbon nanotube, has aroused much interests among the scientific community due to its outstanding electronic, mechanical, and thermal properties.With excellent electrical conductivity of 6000 S/cm, which is independent on chirality, graphene is a promising material for high-performance nanoelectronics, transparent conductor, as well as polymer composites. On account of its Young's Modulus of 1 TPa and ultimate strength of 130 GPa, isolated graphene sheet is considered to be among the strongest materials ever measured. Comparable with the single-walled carbon nanotube bundle,graphene has a thermal conductivity of 5000 W/(m·K), which suggests a potential application of graphene in polymer matrix for improving thermal properties of the graphene/polymer composite. Furthermore, graphene exhibits a very high surface area, up to a value of 2630 m^2/g. All of these outstanding properties suggest a wide application for this nanometer-thick, two-dimensional carbon material. This review article presents an overview of the significant advancement in graphene research: preparation, functionalization as well as the properties of graphene will be discussed. In addition, the feasibility and potential applications of graphene in areas, such as sensors, nanoelectronics and nanocomposites materials, will also be reviewed. | Zhi Yang Rungang Gao Nantao Hu Jing Chai Yingwu Cheng Liying Zhang Hao Wei Eric Siu-Wai Kong Yafei Zhang | 2012 | Nano-Micro Letters2012，4，1： | 16 |
| 14 | Gefitinib plus Fuzheng Kang'ai Formula(扶正抗癌方) in Patients with Advanced Non-Small Cell Lung Cancer with Epidermal Growth Factor Receptor Mutation:A Randomized Controlled Trial显示文摘Objective: To evaluate the effect of Fuzheng Kang'ai Formula(扶正抗癌方, FZKA) plus gefitinib in patients with advanced non-small cell lung cancer with epidermal growth factor receptor(EGFR) mutations. Methods: A randomized controlled trial was conducted from 2009 to 2012 in South China. Seventy chemotherapynaive patients diagnosed with stage ⅢB/Ⅳ non-small cell lung cancer with EGFR mutations were randomly assigned to GF group [gefitinib(250 mg/day orally) plus FZKA(250 m L, twice per day, orally); 35 cases] or G group(gefitinib 250 mg/day orally; 35 cases) according to the random number table and received treatment until progression of the disease, or development of unacceptable toxicities. The primary endpoint [progression-free survival(PFS)] and secondary endpoints [median survival time(MST), objective response rate(ORR), disease control rate(DCR) and safety] were observed. Results: No patient was excluded after randomization. GF group had significantly longer PFS and MST compared with the G group, with median PFS of 12.5 months(95% CI 3.30–21.69) vs. 8.4 months(95% CI 6.30–10.50; log-rank P<0.01), MST of 21.5 months(95% CI 17.28–25.73) vs. 18.3 months(95% CI 17.97–18.63; log-rank P<0.01). ORR and DCR in GF group and G group were 65.7% vs. 57.1%, 94.3% vs. 80.0%, respectively(P>0.05). The most common toxic effects in the GF group and G group were rash or acne(42.8% vs. 57.1%, P>0.05), diarrhea(11.5% vs. 31.4%, P<0.05), and stomatitis(2.9% vs. 8.7%, P>0.05). Conclusion: Patients with advanced non-small cell lung cancer selected by EGFR mutations have longer PFS, MST with less toxicity treated with gefitinib plus FZKA than gefitinib alone. | YANG Xiao-bing CHAI Xiao-shu WU Wan-yin LONG Shun-qin DENG Hong PAN Zong-qi HE Wen-feng ZHOU Yu-shu LIAO Gui-ya XIAO Shu-jing | 2018 | Chinese Journal of Integrative Medicine2018，24，10： | 15 |
| 15 | Quercetin protects against diabetic retinopathy in rats by inducing heme oxygenase-1 expression显示文摘Quercetin is a widely-occurring flavonoid that protects against cancer, and improves memory and cardiovascular functions.However, whether quercetin exhibits therapeutic effects in diabetic retinopathy remains unclear.In this study, we established a rat model of streptozocininduced diabetic retinopathy.Seventy-two hours later, the rats were intraperitoneally administered 150 mg/kg quercetin for 16 successive weeks.Quercetin markedly increased the thickness of the retinal cell layer, increased the number of ganglion cells, and decreased the overexpression of the pro-inflammatory factors interleukin-1β, interleukin-18, interleukin-6 and tumor necrosis factor-α in the retinal tissue as well as the overexpression of high mobility group box-1 and the overactivation of the NLRP3 inflammasome.Furthermore, quercetin inhibited the overexpression of TLR4 and NF-κBp65, reduced the expression of the pro-angiogenic vascular endothelial growth factor and soluble intercellular adhesion molecule-1, and upregulated the neurotrophins brain-derived neurotrophic factor and nerve growth factor.Intraperitoneal injection of the heme oxygenase-1 inhibitor zinc protoporphyrin blocked the protective effect of quercetin.These findings suggest that quercetin exerts therapeutic effects in diabetic retinopathy possibly by inducing heme oxygenase-1 expression.This study was approved by the Animal Ethics Committee of China Medical University, China(approval No.2016 PS229K) on April 8, 2016. | Guang-Rui Chai Shu Liu Hong-Wei Yang Xiao-Long Chen | 2021 | Neural Regeneration Research2021，16，7： | 15 |
| 16 | Comparison of FP-7 and S-2 Ahmed glaucoma valve implantation in refractory glaucoma patients for short-term follow-up显示文摘背景 Ahmed 绿内障阀门(AGV ) 被用于十年,但是关于在中国绿内障病人的 AGV 的功效没有详细报告。试图比较在中国倔强的绿内障 patients.Methods 病人降低 S-2 聚丙烯和 PF-7 硅酮 AGV 培植的功效和副作用的 intraocular 压力(IOP ) 的这研究被划分成 S-2 模型 AGV 组和 FP-7 模型 AGV 组。完全、合格的外科的成功率, IOP 的变化,使用的反绿内障药的数字和手术后的复杂并发症被记录, analyzed.Results 一般水准后续时间在二个组之间是可比较的。IOP 被减少从(37.9_ | BAI Yu-jing LI Yi-qing CHAI Fang YANG Xue-jiao ZHANG Yi-chong WEI Yan-tao HUANG Jing-jing GE Jian ZHUO Ye-hong | 2011 | Chinese Medical Journal2011，，8： | 14 |
| 17 | Ligand-triggered de-repression of Arabidopsis heterotrimeric G proteins coupled to immune receptor kinases显示文摘 | Xiangxiu Liang Miaomiao Ma ,Zhaoyang Zhou Jinlong Wang Xinru Yang Shaofei Rao Guozhi Bi Lin Li Xiaojuan Zhang Jijie Chai She Chen Jian-Min Zhou | 2018 | Cell Research2018，28，5： | 13 |
| 18 | Molecular regulatory mechanism of tooth root development显示文摘The root is crucial for the physiological function of the tooth, and a healthy root allows an artificial crown to function as required clinically. Tooth crown development has been studied intensively during the last few decades, but root development remains not well understood. Here we review the root development processes, including cell fate determination, induction of odontoblast and cementoblast differentiation, interaction of root epithelium and mesenchyme, and other molecular mechanisms. This review summarizes our current understanding of the signaling cascades and mechanisms involved in root development. It also sets the stage for de novo tooth regeneration. | Xiao-Feng Huang Yang Chai | 2012 | International Journal of Oral Science2012，4，4： | 12 |
| 19 | Core-shell Au@MnO2 nanoparticles for enhanced radiotherapy via improving the tumor oxygenation显示文摘在稳固的肿瘤的本地组织缺氧经常导致抵抗到放射疗法(RT ) ,在哪个氧为提高 DNA 损坏的一个必要元素被电离引起放射。此处,我们开发了 gold@manganese 二氧化物(有聚乙烯乙二醇(木钉) 的 Au@MnO 2) 核心壳 nanoparticles 是的涂层在癌症治疗期间改进 RT 功效的一个新奇 radiosensitizing 代理人。在这 Au@MnO 2 nanostructure ,当金核心是著名 RT 时,交往与的 sensitizer X光检查为在 RT 下面杀死的改进癌症生产控告的粒子, MnO 2壳可以触发内长的 H 2在肿瘤微型环境到的 O 2产生氧并且克服 hypoxiaassociated RT 抵抗。是示威了由在 vitro 并且在 vivo 实验, Au@MnO 2-PEG nanoparticles 充当了有效 radiosensitizers 显著地在 RT 期间提高癌症治疗功效。而且, Au@MnO 2-PEG 的明显的副作用都没在老鼠被观察。因此,我们的工作为 hypoxic 肿瘤的提高的 RT 治疗与潜力介绍 radiosensitizer 的一种新类型。 | Xuan Yi Lei Chen Xiaoyan Zhong Roulin Gao Yitao Qian Fan Wu Guosheng Song Zhifang Chai Zhuang Liu Kai Yang | 2016 | Nano Research2016，9，11： | 12 |
| 20 | Few-layer Tellurium:one-dimensional-like layered elementary semiconductor with striking physical properties显示文摘Few-layer Tellurium, an elementary semiconductor, succeeds most of striking physical properties that black phosphorus(BP) offers and could be feasibly synthesized by simple solution-based methods. It is comprised of non-covalently bound parallel Te chains, among which covalent-like feature appears.This feature is, we believe, another demonstration of the previously found covalent-like quasi-bonding(CLQB) where wavefunction hybridization does occur. The strength of this inter-chain CLQB is comparable with that of intra-chain covalent bonding, leading to closed stability of several Te allotropes. It also introduces a tunable bandgap varying from nearly direct 0.31 eV(bulk) to indirect 1.17 eV(2L) and four(two) complex, highly anisotropic and layer-dependent hole(electron) pockets in the first Brillouin zone.It also exhibits an extraordinarily high hole mobility(~10~5 cm^2/Vs) and strong optical absorption along the non-covalently bound direction, nearly isotropic and layer-dependent optical properties, large ideal strength over 20%, better environmental stability than BP and unusual crossover of force constants for interlayer shear and breathing modes. All these results manifest that the few-layer Te is an extraordinary-high-mobility, high optical absorption, intrinsic-anisotropy, low-cost-fabrication, tunable bandgap, better environmental stability and nearly direct bandgap semiconductor. This ‘‘one-dimen sion-like' few-layer Te, together with other geometrically similar layered materials, may promote the emergence of a new family of layered materials. | Jingsi Qiao Yuhao Pan Feng Yang Cong Wang Yang Chai Wei Ji | 2018 | Science Bulletin2018，63，3： | 12 |
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