文献类型：期刊文献

英文题名：CVD Grown MoS2 Nanoribbons on MoS2 Covered Sapphire(0001) Without Catalysts

作者：Wu, Di[1,2,3];Shi, Jiao[1,2,3];Zheng, Xiaoming[1,2,3];Liu, Jinxin[1];Dou, Weidong[4];Gao, Yongli[1,5];Yuan, Xiaoming[1,6];Ouyang, Fangping[1];Huang, Han[1]

机构：[1]Cent South Univ, Sch Phys & Elect, Hunan Key Lab Super Microstruct & Ultrafast Proc, Changsha 410083, Hunan, Peoples R China;[2]Cent South Univ, Powder Met Res Inst, Changsha 410083, Hunan, Peoples R China;[3]Cent South Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China;[4]Shaoxing Univ, Phys Dept, Shaoxing 312000, Peoples R China;[5]Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA;[6]Australian Natl Univ, Res Sch Phys & Engn, Dept Elect Mat Engn, GPO Box 4, Canberra, ACT 0200, Australia

年份：2019

卷号：13

期号：7

外文期刊名：PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS

收录：SCI-EXPANDED(收录号：WOS:000477671800002)、、WOS

基金：D.W. and J.S. contributed equally to this work. The authors acknowledge the financial support from the National Natural Science Foundation (NSF) of China (Grant Nos. 11874427, 51272291, 51173205, 61474077, 51702368). Dr. Han Huang and Xiaoming Yuan acknowledges support from the Innovation-Driven project of Central South University (Grant Nos. 2017CX018, 2018CX045) and from the Natural Science Foundation of Hunan province (Grant Nos. 2016JJ1021, 2018JJ3684). Di Wu, Jiao Shi, and Xiaoming Zheng acknowledge the support from the Fundamental Research Funds for the Central Universities of Central South University (Grant Nos. 2018zzts107, 2017zzts330, 2017zzts066). The Australian Microscopy and Microanalysis Research Facility are acknowledged for access to facilities used in this work.

语种：英文

外文关键词：chemical vapor deposition; molybdenum disulfide; nanoribbons

外文摘要：One-dimensional (1D) atomically thin crystals have attracted considerable interest due to their unique properties and potential applications. Herein, the chemical vapor deposition (CVD) growth of molybdenum disulfide (MoS2) nanoribbons on sapphire(0001) supported monolayer MoS2 flakes without catalysts as well as the characterizations by means of Raman and photoluminescence (PL) spectroscopy, optical microscopy (OM), atomic force microscopy (AFM), and scanning transmission electron microscopy (STEM). The Raman and PL results is reported, as well as OM images reveal that such MoS2 nanoribbons grow on monolayer MoS2 flakes. STEM and selected area electron diffraction (SAED) results reveal that they are grown along the 101 over bar 0 direction with atomically sharp edges. Controlled experiments show that the deficiency of sulfur vapor at the beginning of growth induced 1D MoOxS2-x crystals as precursors. The subsequent sulfurization changes them into MoS2 nanoribbons. These findings provide a facile approach to MoS2 nanoribbons and enrich the horizon of the preparation of nanostructured transition metal dichalcogenides.