Alcohols Assisted Hydrothermal Synthesis of Defect-Rich MoS2 and Their Applications in Humidity Sensing

Leng, Xiaohui1; Wang, Yiming1; Wang, Fei1,2,3

2019-06

10.1002/admi.201900010

Advanced Materials Interfaces   影响因子和分区

2196-7350

The influence of different alcohols on hydrothermal synthesis of molybdenum disulfide (MoS2) has been studied. X-ray diffraction and scanning electron microscope results show that MoS2 synthesized in water and water/polyethylene glycol exhibits good flower-like crystallization while in ethanol/water, ethylene glycol/water, and glycerol/water, the MoS2 shows a smaller size of 3D flower structure and larger layer distance. Strong absorbance peaks in Fourier-transform infrared spectroscopy and Raman spectra indicate oxygen doping in MoS2. These defects from oxygen doping induce a good sensitivity to water vapor in the environment. A lower hydrothermal temperature (i.e., 180 and 200 degrees C) results in these defect rich MoS2 and benefits the humidity sensing performance.

defect-rich structures humidity sensing hydrothermal synthesis molybdenum disulfide solvent effects

SCI ; EI

英语

第一 ; 通讯

Guangdong Special Support Program[2015TQ01X555]

Chemistry ; Materials Science

Chemistry, Multidisciplinary ; Materials Science, Multidisciplinary

WOS:000471079000021

WILEY

20191706816511

Defects ; Ethylene ; Ethylene glycol ; Fourier transform infrared spectroscopy ; Humidity sensors ; Hydrothermal synthesis ; Layered semiconductors ; Molybdenum compounds ; Oxygen ; Scanning electron microscopy ; Solvents

Meteorological Instrumentation:443.2 ; Chemistry:801 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Organic Compounds:804.1 ; Materials Science:951

Web of Science

1.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, Sch Microelect, Shenzhen 518055, Peoples R China
3.Southern Univ Sci & Technol, GaN Device Engn Technol Res Ctr Guangdong, Shenzhen 518055, Peoples R China

Leng, Xiaohui,Wang, Yiming,Wang, Fei. Alcohols Assisted Hydrothermal Synthesis of Defect-Rich MoS2 and Their Applications in Humidity Sensing[J]. Advanced Materials Interfaces,2019,6(11).

Leng, Xiaohui,Wang, Yiming,&Wang, Fei.(2019).Alcohols Assisted Hydrothermal Synthesis of Defect-Rich MoS2 and Their Applications in Humidity Sensing.Advanced Materials Interfaces,6(11).

Leng, Xiaohui,et al."Alcohols Assisted Hydrothermal Synthesis of Defect-Rich MoS2 and Their Applications in Humidity Sensing".Advanced Materials Interfaces 6.11(2019).