MoS_2纳米片的制备及其电双稳性能  

Preparation and Electrical Bistability Properties of MoS_2 Nanosheets

作　　者：卢悦[1] 侯腾轩 王瑞琦[1] 吕博昆 温哲[1] 马皓天 刘茜[1] 李旭[1] 关丽[1] 

机构地区：[1]河北大学物理科学与技术学院河北省光电信息材料重点实验室,河北保定071002

出　　处：《中国激光》2017年第7期186-192,共7页Chinese Journal of Lasers

基　　金：国家自然科学基金(61205180);河北大学实验室开放项目(sy201642;sy201643;sy201644)

摘　　要：利用简易的"一锅法"制备了正丁硫醇修饰的MoS_2纳米片(MoS_2-C_4),并对其结构、组分、形貌及电双稳性能进行了研究。正丁硫醇在反应过程中既作为硫源,又作为表面活性剂。X射线衍射(XRD)测试表明制备的样品为六方晶系的MoS_2。从透射电镜(TEM)和原子力显微镜(AFM)可以看出样品的形貌为片状,较大的纳米片是由较小的纳米片自组装而成。测试了样品的吸收光谱,由吸收峰的位置证明了合成的样品为2H-MoS_2纳米片。利用旋涂法将所制备的纳米片与聚乙烯基咔唑(PVK)的混合物制备了电双稳器件,通过电流-电压(I-V)测试证明了该器件具有很好的电双稳性能。n-butyl mercaptan modified molybdenum disulfide nanosheets （MOS2-C4） are synthesized by simple one-pot method. The structure, component, morphology and electrical bistable properties of the samples are investigated. In the reaction process, n-butyl rnercaptan is not only used as a sulfur source but also used as the surfactant. X-ray diffraction （XRD） test indicate that the obtained sample is MoSz with hexagonal system. The sheet-like morphology is confirmed by the transmission electron microscopy （TEM） and atomic force micros （AFM）. And the bigger nanosheets are self-assembled by the lesser nanosheets. The absorption spectrum of the sample is tested and the location of absorption peak reveals that the sample is 2H MoSz . Electrical bistable device is fabricated by the mixture of prepared nanosheets and polyvinylcarbazole （PVK）. And the device exhibits obvious electrical bistability by I V test.

关 键 词：材料 光电材料 纳米片 电双稳器件 二硫化钼 正丁硫醇 

分 类 号：TQ125.1[化学工程—无机化工]