Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 12, Issue 6, Pages 7423-7431Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.9b19495
Keywords
molybdenum sulfide; tin sulfide; heterostructures; nonlinear optics; charge separation; preferential adsorption
Funding
- National Natural Science Foundation of China [51772214, 51432006]
- Ministry of Science and Technology of China [2011DFG52970]
- Ministry of Education of China [IRT14R23]
- 111 Project [B13025]
- Jiangsu Province [2011-XCL-019, 2013-479]
- Innovation Program of Shanghai Municipal Education Commission
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We synthesize a vertical heterostructure (HS) between tin sulfide (SnS) and molybdenum sulfide (MoS2) by chemical vapor deposition based on the preferential adsorption of sulfur on MoS2. Most of the SnS grains nucleate on MoS2 nanosheets, formatting partially stacked HS with large overlapping regions. Photoluminescence quenching of MoS2 is observed and illustrates effective charge separation in HS. The HS shows increased reverse saturable absorption relative to MoS2 and SnS. The preferential adsorption of powders on MoS2 and HS growth reported herein will provide a promising approach to the synthesis of other two-dimensional HS.
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