利用前期发展出来的溶液插层剥离法[1]制备二硫化钼制备超薄纳米片.在制备过程中,锂离子嵌入到二硫化钼的层间,而在后续的剥离过程,嵌入的锂离子与水结合为较大体积的水合锂离子,使得硫化钼层间距离膨胀而使其层与层之间分离、脱落,从而剥离出的硫化钼纳米片便分散于水中.对制备的样品进行形貌和微观结构表征的结果表明,制备的二硫化钼纳米片表面平坦光滑,纯度高,产量大.块体和单层二硫化钼纳米片与块体相比,有一些独
Spin caloritronics devices are very important for future development of low-power-consumption technology.We propose a new spin caloritronics material based on zigzag graphene nanoribbon (ZGNR),which i
The development of low-cost efficient solar cells is one of the ultimate solutions for the renewable and clean energy challenge.Chalcopyrite based solar cells are promising candidates for next generat
The first part in my talk includes the preparation and manipulation of single cesium atoms by means of laser cooling and trapping as well as microscopic far-off-resonance optical dipole trap (FORT).
利用哺乳动物心脏窦房结心房组织的二维解剖模型,模拟因急性心肌梗死对窦房结及心房组织信号传导功能产生的影响.模拟结果显示,急性心肌梗死会导致周边区域心肌细胞中的受到抑制,心房中峰值电流明显降低,引起失活速率加快,这与文献报道的临床试验所得的结果一致.
The first peak of the pair distribution function of a thermal system shows a maximum height g1^(max) under compression at fixed temperature.We find that g1^(max) is accompanied by significant change o
趋磁细菌,顾名思义,是一类可以感受磁场方向并沿磁场方向运动的原核生物.它最初发现于1975 年,Blackmore 在显微镜下发现有一些细菌总是集中在液滴的一端,而外加磁场可以让它们跑到液滴的另外一端.生物机制的研究发现,这种细菌体内存在膜包被的四氧化三铁或黄铁矿晶体,这种亚细胞结构被称为磁小体岛.磁小体岛在细胞内链状排列,使细胞表现为单磁畴.这样,当运动方向使得磁小体链和磁场方向平行时的磁矫顽力
自上世纪六十年代以来,量子光学的发展极为迅猛,已经衍生出量子通信、量子计算与模拟、量子存储、量子时间同步与量子定位测绘等多个研究方向.这些方向的发展与应用涉及到量子光源的产生、量子提纯与量子探测等三个方面关键问题的研究.
We present an efficient quantum repeater protocol that uses coupled systems of quantum-dot spins and optical microcavities,in which the spatial entanglement of a photon system can be converted into po