Greatly enhanced light emission of MoS2 using photonic crystal heterojunction

Liu, Jiang-Tao; Tong, Hong; Wu, Zhenhua; Huang, Jinbao; Zhou, Yun-Song

doi:10.1038/s41598-017-16502-2

Cited by 18 publications

(4 citation statements)

References 48 publications

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“…Regarding the applications, apart from those described in this review, 2D-MoS 2 exhibits very appealing performances in infrared domains especially in combination with metamaterials such as passive radiative cooling. There are some emerging works [177][178][179][180] related to this aspect such as developing hybrid MoS 2 thin films with new structures, including metamaterials, metasurfaces, photonic crystals, plasmonics, etc. Similarly, the development of 2D material-based antennas remains unsatisfactory as most of the known achievements on MoS 2 in this domain are developed theoretically.…”

Section: Discussionmentioning

confidence: 99%

Recent Progress in the Synthesis of MoS2 Thin Films for Sensing, Photovoltaic and Plasmonic Applications: A Review

et al. 2021

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In the surge of recent successes of 2D materials following the rise of graphene, molybdenum disulfide (2D-MoS2) has been attracting growing attention from both fundamental and applications viewpoints, owing to the combination of its unique nanoscale properties. For instance, the bandgap of 2D-MoS2, which changes from direct (in the bulk form) to indirect for ultrathin films (few layers), offers new prospects for various applications in optoelectronics. In this review, we present the latest scientific advances in the field of synthesis and characterization of 2D-MoS2 films while highlighting some of their applications in energy harvesting, gas sensing, and plasmonic devices. A survey of the physical and chemical processing routes of 2D-MoS2 is presented first, followed by a detailed description and listing of the most relevant characterization techniques used to study the MoS2 nanomaterial as well as theoretical simulations of its interesting optical properties. Finally, the challenges related to the synthesis of high quality and fairly controllable MoS2 thin films are discussed along with their integration into novel functional devices.

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Section: Discussionmentioning

confidence: 99%

Recent Progress in the Synthesis of MoS2 Thin Films for Sensing, Photovoltaic and Plasmonic Applications: A Review

et al. 2021

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“…These layers are weakly bonded to each other through van der Waals forces, which makes the MoS 2 monolayer a reactive nanometric material due to the presence of free electrons 9 , 16 , 17 . The MoS 2 monolayer provides remarkable absorption peaks of 23%, 6%, and 7% due to its direct band gap at the wavelengths of 432 nm, 617 nm, and 664 nm, respectively 18 . Although the MoS 2 monolayer is a noteworthy material due to the mentioned properties, its absorption value must be increased for optical and optoelectronic applications 19 , 20 .…”

Section: Introductionmentioning

confidence: 99%

Data analysis on the three defect wavelengths of a MoS2-based defective photonic crystal using machine learning

Ansari,

Sohrabi,

Mirbaghestan

et al. 2023

Sci Rep

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To reduce the dimension of optoelectronic devices, recently, Molybdenum disulfide (MoS2) monolayers with direct bandgap in the visible range are widely used in designing a variety of photonic devices. In these applications, adjustability of the working wavelength and bandwidth with optimum absorption value plays an important role. This work proposes a symmetric defective photonic crystal with three defects containing MoS2 monolayer to achieve triple narrowband defect modes with wavelength adjustability throughout the Photonic Band Gap (PBG) region, 560 to 680 nm. Within one of our designs remarkable FWHM approximately equal to 5 nm with absorption values higher than 90% for the first and third defect modes are achieved. The impacts of varying structural parameters on absorption value and wavelength of defect modes are investigated. Due to the multiplicity of structural parameters which results in data plurality, the optical properties of the structure are also predicted by machine learning techniques to assort the achieved data. Multiple Linear Regression (MLR) modeling is used to predict the absorption and wavelength of defect modes for four datasets based on various permutations of structural variables. The machine learning modeling results are highly accurate due to the obtained R2-score and cross-validation score values higher than 90%.

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“…Plasmon-exciton hybrids, as platforms for investigating light-matter interactions with various mechanisms such as plasmon-induced resonance energy transfer (RET) 1,2 , Fano interference [3][4][5] , strong coupling [6][7][8][9][10][11][12] , and plasmon-enhanced absorption and emission [13][14][15][16][17][18][19][20][21][22][23] have attracted much attention. Monolayer transition metal dichalcogenides (TMDCs) have evoked strong interests owing to their fascinating optical properties and flexible features for integration 24 .…”

Section: Introductionmentioning

confidence: 99%

Controlling plasmon-exciton interactions through photothermal reshaping

Hu¹,

Liu²,

Zhao³

et al. 2020

Opto-Electronic Advances

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We investigated the plasmon-exciton interactions in an individual gold nanorod (GNR) with monolayer MoS 2 at room temperature with the single-particle spectroscopy technique. To control the plasmon-exciton interaction, we tuned the local surface plasmon resonance of an individual GNR in-situ by employing the photothermal reshaping effect. The scattering spectra of the GNR-MoS 2 hybrids exhibited two dips at the frequencies of the A and B excitons of monolayer MoS 2 , which were caused by the plasmon-induced resonance energy transfer effect. The resonance energy transfer rate increased when the surface plasmon resonance of the nanorod matched well with the exciton transition energy. Also, we demonstrated that the plasmon-enhanced fluorescence process dominated the photoluminescence of the GNR-MoS 2 hybrid. These results provide a flexible way to control the plasmon-exciton interaction in an all-solid-state operating system at room temperature.

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Greatly enhanced light emission of MoS2 using photonic crystal heterojunction

Cited by 18 publications

References 48 publications

Recent Progress in the Synthesis of MoS2 Thin Films for Sensing, Photovoltaic and Plasmonic Applications: A Review

Recent Progress in the Synthesis of MoS2 Thin Films for Sensing, Photovoltaic and Plasmonic Applications: A Review

Data analysis on the three defect wavelengths of a MoS2-based defective photonic crystal using machine learning

Controlling plasmon-exciton interactions through photothermal reshaping

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