MoS2-graphene heterostructures as efficient organic compounds sensing 2D materials

Pham, Tung; Ramnani, Pankaj; Villarreal, Claudia C.; Lopez, Jhoann; Das, Protik; Lee, Ilkeun; Neupane, Mahesh R.; Rheem, Youngwoo; Mulchandani, Ashok

doi:10.1016/j.carbon.2018.10.079

Cited by 51 publications

(31 citation statements)

References 60 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In addition to graphene, greater attention was given to increasing the efficiency of K-SPR sensors using 2D transition metal dichalcogenides (TMDC) such as molybdenum disulphide (MoS2). MoS2 is a suitable biosensing material candidate due to its high optical absorption efficiency (~5 %), which further reduces the SPR resonance curve's dip [1].…”

Section: Introductionmentioning

confidence: 99%

Multilayer CVD-Graphene and MoS₂ Ethanol Sensing and Characterization Using Kretschmann-Based SPR

Menon

Jamil

Mei

et al. 2020

IEEE J. Electron Devices Soc.

View full text Add to dashboard Cite

The Kretschmann-based surface plasmon resonance (K-SPR) sensor was developed using multilayer graphene and molybdenum disulphide (MoS2) structures on a plasmonic gold (Au) layer for ethanol detection. In this configuration, the SPR spectra of minimum reflectance versus SPR angle was used to determine the sensitivity, detection accuracy and quality factor as the main figure of merit (FOM). Both graphene and MoS2 were used as hybrid detection layers to enhance the ethanol sensing performance using Finite Difference Time Domain (FDTD). The multilayer graphene/Au and MoS2/Au sensors gave a maximum sensitivity of 192.03/RIU and 153.25/RIU respectively at 785 nm optical wavelength. In terms of material characterization using the K-SPR technique, chemical vapor deposition (CVD)-grown graphene on Au, had a thickness of 1.17 nm with real and imaginary refractive indices of 2.85, 0.74, and 3.1, 1.19, respectively, at optical wavelengths of 670 nm and 785 nm.

show abstract

Section: Introductionmentioning

confidence: 99%

Multilayer CVD-Graphene and MoS₂ Ethanol Sensing and Characterization Using Kretschmann-Based SPR

Menon

Jamil

Mei

et al. 2020

IEEE J. Electron Devices Soc.

View full text Add to dashboard Cite

show abstract

“…The most facile and common way to build a 2D-FET platform is to use a wafer-based back-gated configuration as shown in Figure 1 a. In this configuration, the deposition of electrodes (source and drain) is needed, while the bulk wafer could directly act as a back gate [ 31 ]. Two-dimensional materials could be grown or transferred via typical methods on a wafer of dielectric material (such as SiO 2 ) deposited on conducting substrate (such as Si) followed by deposition of metal source and drain electrodes via microfabrication process.…”

Section: Fet Platform: General Featuresmentioning

confidence: 99%

Non-Carbon 2D Materials-Based Field-Effect Transistor Biosensors: Recent Advances, Challenges, and Future Perspectives

Sedki

Chen

Mulchandani

2020

Sensors

Self Cite

View full text Add to dashboard Cite

In recent years, field-effect transistors (FETs) have been very promising for biosensor applications due to their high sensitivity, real-time applicability, scalability, and prospect of integrating measurement system on a chip. Non-carbon 2D materials, such as transition metal dichalcogenides (TMDCs), hexagonal boron nitride (h-BN), black phosphorus (BP), and metal oxides, are a group of new materials that have a huge potential in FET biosensor applications. In this work, we review the recent advances and remarkable studies of non-carbon 2D materials, in terms of their structures, preparations, properties and FET biosensor applications. We will also discuss the challenges facing non-carbon 2D materials-FET biosensors and their future perspectives.

show abstract

“…Specific heterostructures can be manufactured by stacking the 2D layered materials with different properties. At this time, the mechanical stability of 2D material can be maintained due to the strong covalent bonding of heterostructure layers and weaker vdWs interactions between the layers can connect different layer materials [ 19 , 20 , 21 ]. vdWs heterostructures can provide additional degrees of controllable freedom, such as the number of layers and the corners between floors, etc [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Spectral Characteristics Investigation of the 2D-2D vdWs Heterostructure Materials

Han

Liu

Wang

et al. 2021

IJMS

View full text Add to dashboard Cite

Due to the attractive optical and electrical properties, van der Waals (vdWs) heterostructures constructed from the different two-dimensional materials have received widespread attention. Here, MoS2/h-BN, MoS2/graphene, WS2/h-BN, and WS2/graphene vdWs heterostructures are successfully prepared by the CVD and wet transfer methods. The distribution, Raman and photoluminescence (PL) spectra of the above prepared heterostructure samples can be respectively observed and tested by optical microscopy and Raman spectrometry, which can be used to study their growth mechanisms and optical properties. Meanwhile, the uniformity and composition distribution of heterostructure films can also be analyzed by the Raman and PL spectra. The internal mechanism of Raman and PL spectral changes can be explained by comparing and analyzing the PL and Raman spectra of the junction and non-junction regions between 2D-2D vdWs heterostructure materials, and the effect of laser power on the optical properties of heterostructure materials can also be analyzed. These heterostructure materials exhibit novel and unique optical characteristics at the stacking or junction, which can provide a reliable experimental basis for the preparation of suitable TMDs heterostructure materials with excellent performance.

show abstract

MoS2-graphene heterostructures as efficient organic compounds sensing 2D materials

Cited by 51 publications

References 60 publications

Multilayer CVD-Graphene and MoS₂ Ethanol Sensing and Characterization Using Kretschmann-Based SPR

Multilayer CVD-Graphene and MoS₂ Ethanol Sensing and Characterization Using Kretschmann-Based SPR

Non-Carbon 2D Materials-Based Field-Effect Transistor Biosensors: Recent Advances, Challenges, and Future Perspectives

Synthesis and Spectral Characteristics Investigation of the 2D-2D vdWs Heterostructure Materials

Contact Info

Product

Resources

About