PMID- 35335709
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20220329
IS  - 2079-4991 (Print)
IS  - 2079-4991 (Electronic)
IS  - 2079-4991 (Linking)
VI  - 12
IP  - 6
DP  - 2022 Mar 8
TI  - Defect-Rich Monolayer MoS(2) as a Universally Enhanced Substrate for 
      Surface-Enhanced Raman Scattering.
LID - 10.3390/nano12060896 [doi]
LID - 896
AB  - Monolayer 2H-MoS(2) has been widely noticed as a typical transition metal 
      dichalcogenides (TMDC) for surface-enhanced Raman scattering (SERS). However, 
      monolayer MoS(2) is limited to a narrow range of applications due to poor 
      detection sensitivity caused by the combination of a lower density of states 
      (DOS) near the Fermi energy level as well as a rich fluorescence background. 
      Here, surfaced S and Mo atomic defects are fabricated on a monolayer MoS(2) with 
      a perfect lattice. Defects exhibit metallic properties. The presence of defects 
      enhances the interaction between MoS(2) and the detection molecule, and it 
      increases the probability of photoinduced charge transfer (PICT), resulting in a 
      significant improvement of Raman enhancement. Defect-containing monolayer MoS(2) 
      enables the fluorescence signal of many dyes to be effectively burst, making the 
      SERS spectrum clearer and making the limits of detection (LODs) below 10(-8) M. 
      In conclusion, metallic defect-containing monolayer MoS(2) becomes a promising 
      and versatile substrate capable of detecting a wide range of dye molecules due to 
      its abundant DOS and effective PICT resonance. In addition, the synergistic 
      effect of surface defects and of the MoS(2) main body presents a new perspective 
      for plasma-free SERS based on the chemical mechanism (CM), which provides 
      promising theoretical support for other TMDC studies.
FAU - Sun, Shiyu
AU  - Sun S
AD  - Key Laboratory for High Strength Lightweight Metallic Materials of Shandong 
      Province (HM), Advanced Materials Institute, Qilu University of Technology 
      (Shandong Academy of Sciences), Jinan 250014, China.
FAU - Zheng, Jingying
AU  - Zheng J
AD  - College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, 
      China.
FAU - Sun, Ruihao
AU  - Sun R
AD  - Key Laboratory for High Strength Lightweight Metallic Materials of Shandong 
      Province (HM), Advanced Materials Institute, Qilu University of Technology 
      (Shandong Academy of Sciences), Jinan 250014, China.
FAU - Wang, Dan
AU  - Wang D
AD  - Key Laboratory for High Strength Lightweight Metallic Materials of Shandong 
      Province (HM), Advanced Materials Institute, Qilu University of Technology 
      (Shandong Academy of Sciences), Jinan 250014, China.
FAU - Sun, Guanliang
AU  - Sun G
AUID- ORCID: 0000-0003-4779-2327
AD  - Key Laboratory for High Strength Lightweight Metallic Materials of Shandong 
      Province (HM), Advanced Materials Institute, Qilu University of Technology 
      (Shandong Academy of Sciences), Jinan 250014, China.
FAU - Zhang, Xingshuang
AU  - Zhang X
AD  - Key Laboratory for High Strength Lightweight Metallic Materials of Shandong 
      Province (HM), Advanced Materials Institute, Qilu University of Technology 
      (Shandong Academy of Sciences), Jinan 250014, China.
FAU - Gong, Hongyu
AU  - Gong H
AUID- ORCID: 0000-0003-2720-3134
AD  - Key Laboratory for High Strength Lightweight Metallic Materials of Shandong 
      Province (HM), Advanced Materials Institute, Qilu University of Technology 
      (Shandong Academy of Sciences), Jinan 250014, China.
FAU - Li, Yong
AU  - Li Y
AUID- ORCID: 0000-0002-7751-7951
AD  - Key Laboratory for High Strength Lightweight Metallic Materials of Shandong 
      Province (HM), Advanced Materials Institute, Qilu University of Technology 
      (Shandong Academy of Sciences), Jinan 250014, China.
FAU - Gao, Meng
AU  - Gao M
AD  - Key Laboratory for High Strength Lightweight Metallic Materials of Shandong 
      Province (HM), Advanced Materials Institute, Qilu University of Technology 
      (Shandong Academy of Sciences), Jinan 250014, China.
FAU - Li, Dongwei
AU  - Li D
AD  - Key Laboratory for High Strength Lightweight Metallic Materials of Shandong 
      Province (HM), Advanced Materials Institute, Qilu University of Technology 
      (Shandong Academy of Sciences), Jinan 250014, China.
FAU - Xu, Guanchen
AU  - Xu G
AUID- ORCID: 0000-0002-2015-7270
AD  - Key Laboratory for High Strength Lightweight Metallic Materials of Shandong 
      Province (HM), Advanced Materials Institute, Qilu University of Technology 
      (Shandong Academy of Sciences), Jinan 250014, China.
FAU - Liang, Xiu
AU  - Liang X
AD  - Key Laboratory for High Strength Lightweight Metallic Materials of Shandong 
      Province (HM), Advanced Materials Institute, Qilu University of Technology 
      (Shandong Academy of Sciences), Jinan 250014, China.
LA  - eng
GR  - 61903235/National Natural Science Foundation of China/
GR  - 51808328/National Natural Science Foundation of China/
GR  - 22005160/National Natural Science Foundation of China/
GR  - 2020CXGC010309/Major Scientific and Technological Innovation Project of Shandong/
PT  - Journal Article
DEP - 20220308
PL  - Switzerland
TA  - Nanomaterials (Basel)
JT  - Nanomaterials (Basel, Switzerland)
JID - 101610216
PMC - PMC8953205
OTO - NOTNLM
OT  - MoS2
OT  - metallic
OT  - photoinduced charge transfer
OT  - surface defects
OT  - surface-enhanced Raman scattering
COIS- The authors declare no conflict of interest.
EDAT- 2022/03/27 06:00
MHDA- 2022/03/27 06:01
PMCR- 2022/03/08
CRDT- 2022/03/26 01:04
PHST- 2022/02/12 00:00 [received]
PHST- 2022/03/01 00:00 [revised]
PHST- 2022/03/04 00:00 [accepted]
PHST- 2022/03/26 01:04 [entrez]
PHST- 2022/03/27 06:00 [pubmed]
PHST- 2022/03/27 06:01 [medline]
PHST- 2022/03/08 00:00 [pmc-release]
AID - nano12060896 [pii]
AID - nanomaterials-12-00896 [pii]
AID - 10.3390/nano12060896 [doi]
PST - epublish
SO  - Nanomaterials (Basel). 2022 Mar 8;12(6):896. doi: 10.3390/nano12060896.