衬底位置对制备二维的MoS2的影响  

Influence of substrate placement on synthesis of two-dimensional MoS_2

作　　者：赵建江[1] 李洪飞[2] 谢爽[1] 徐明生[3] ZHAO Jianjiang;LI Hongfei;XIE Shuang;XU Mingsheng(Stake Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China;Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China;State Key Laboratory of Silicon Materials, Colleage of Information Science & Electronic Engineering, Zhejiang University, Hangzhou 310027, China)

机构地区：[1]浙江大学材料科学与工程学院,硅材料国家重点实验室,杭州310027 [2]浙江大学高分子科学与工程学系,杭州310027 [3]浙江大学信息与电子工程学院,硅材料国家重点实验室,杭州310027

出　　处：《功能材料》2017年第12期12189-12192,12199,共5页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(51472219)

摘　　要：新型的二维层状材料凭借着其优异的机械、光学、电学等独特性能受到研究者广泛关注,二维层状材料如石墨烯、过渡金属硫族化合物等在柔性器件等领域具有潜在的应用前景,成为了现阶段研究热点之一;然而,应用的前提是高质量的二维材料大面积可控制备。利用化学气相沉积方法制备了二维的MoS_2,探讨了放置衬底的差异对合成二维的MoS_2的影响。结果表明,在其它相同的实验条件下,face-up和face-down的放置位置制备的MoS_2具有不同的形状、在衬底上的覆盖率不同;尽管如此,两种放置情况下,获得的单层的MoS_2具有类似的结构和荧光特性。研究结果对可控合成二维的MoS_2以及其它的TMDs均具有指导意义和参考价值。Due to their unique mechanical,optical and electrical properties,two dimensional(2D)layered materials such as graphene and transitional metal dichalcogenides(TMDs)have been gaining strong interests and they have great potentials for applications in flexible devices.However,the controllable synthesis is the prerequisite for their applications.Here,2D MoS2was synthesized by chemical vapor deposition(CVD)method.In this study,the influence of substrate placement on the synthesis of2D MoS2was investigated.The results show that under the same experimental conditions,the2D MoS2prepared by the substrate placement of face-up and face-down have different shapes and coverage rates.Despite these,the structure and the photoluminescence properties of the monolayer MoS2achieved by different placements of the substrate are identical.The results would be helpful to design the procedures for controllable synthesis of TMDs.

关 键 词：二维材料 过渡金属硫族化合物 化学气相沉积制备 衬底放置 

分 类 号：TB312[一般工业技术—材料科学与工程]