Electrically tunable two-dimensional heterojunctions for miniaturized near-infrared spectrometers

Deng, Wenjie; Zheng, Zilong; Li, Jingzhen; Zhou, Rongkun; Chen, Xiaoqing; Zou, Dehui; Lu, Yue; Wang, Chongwu; You, Congya; Li, Songyu; Sun, Ling; Wu, Yi; Li, Xuhong; An, Boxing; Liu, Zheng; Wang, Qi Jie; Duan, Xiangfeng; Zhang, Yongzhe

doi:10.1038/s41467-022-32306-z

Cited by 53 publications

(74 citation statements)

References 59 publications

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“…Note added in proof: During the proofreading stage, we became aware of a recent work ( 31 ) using a ReS 2 /Au/WSe 2 heterostructure, but with limited resolution and operation.…”

mentioning

confidence: 99%

Miniaturized spectrometers with a tunable van der Waals junction

Yoon

Fernández

Nigmatulin

et al. 2022

Science

115

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Miniaturized computational spectrometers, which can obtain incident spectra using a combination of device spectral responses and reconstruction algorithms, are essential for on-chip and implantable applications. Highly sensitive spectral measurement using a single detector allows the footprints of such spectrometers to be scaled down while achieving spectral resolution approaching that of benchtop systems. We report a high-performance computational spectrometer based on a single van der Waals junction with an electrically tunable transport-mediated spectral response. We achieve high peak wavelength accuracy (∼0.36 nanometers), high spectral resolution (∼3 nanometers), broad operation bandwidth (from ∼405 to 845 nanometers), and proof-of-concept spectral imaging. Our approach provides a route toward ultraminiaturization and offers unprecedented performance in accuracy, resolution, and operation bandwidth for single-detector computational spectrometers.

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“…Note added in proof: During the proofreading stage, we became aware of a recent work ( 31 ) using a ReS 2 /Au/WSe 2 heterostructure, but with limited resolution and operation.…”

mentioning

confidence: 99%

Miniaturized spectrometers with a tunable van der Waals junction

Yoon

Fernández

Nigmatulin

et al. 2022

Science

115

View full text Add to dashboard Cite

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“…Miniaturized NIR spectrometers with a footprint <10 μm were demonstrated using interlayer excitons in ReS 2 /Au/ WSe 2 . 160 Figure 11e illustrates the schematic of the device, in which the intercalation of Au atoms at the interface of ReS 2 / WSe 2 enhanced the photoresponsivity. The delocalized orbitals of the Au atoms bridge the heterobilayer and enhance the interlayer transition dipole moment.…”

Section: Infrared Photodetectionmentioning

confidence: 99%

2D Material Infrared Photonics and Plasmonics

Elbanna

Jiang

et al. 2023

ACS Nano

Self Cite

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Two-dimensional (2D) materials including graphene, transition metal dichalcogenides, black phosphorus, MXenes, and semimetals have attracted extensive and widespread interest over the past years for their many intriguing properties and phenomena, underlying physics, and great potential for applications. The vast library of 2D materials and their heterostructures provides a diverse range of electrical, photonic, mechanical, and chemical properties with boundless opportunities for photonics and plasmonic devices. The infrared (IR) regime, with wavelengths across 0.78 μm to 1000 μm, has particular technological significance in industrial, military, commercial, and medical settings while facing challenges especially in the limit of materials. Here, we present a comprehensive review of the varied approaches taken to leverage the properties of the 2D materials for IR applications in photodetection and sensing, light emission and modulation, surface plasmon and phonon polaritons, non-linear optics, and Smith− Purcell radiation, among others. The strategies examined include the growth and processing of 2D materials, the use of various 2D materials like semiconductors, semimetals, Weyl-semimetals and 2D heterostructures or mixed-dimensional hybrid structures, and the engineering of light−matter interactions through nanophotonics, metasurfaces, and 2D polaritons. Finally, we give an outlook on the challenges in realizing high-performance and ambient-stable devices and the prospects for future research and large-scale commercial applications.

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“…The mixture concentration prediction based on the precise decomposed spectrum of each component, namely, decomposed pure forms, also brings about accurate prediction results, with 62% of the prediction values within 0.5 vol % root-mean-squared error (RMSE) and more than 81% of prediction values within 1 vol % RMSE. Overall, the proposed AIMWSP provides a feasible and efficient solution for mixture recognition as well as quantification in the waveguide sensing technique and indicates the potential of incorporating the miniaturized optical sensors and machine learning for the realization of MIR spectrometer-on-a-chip (MIRSOC) in the IoT sensing system.…”

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confidence: 94%

Midinfrared Spectroscopic Analysis of Aqueous Mixtures Using Artificial-Intelligence-Enhanced Metamaterial Waveguide Sensing Platform

et al. 2022

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As miniaturized solutions, mid-infrared (MIR) waveguide sensors are promising for label-free compositional detection of mixtures leveraging plentiful absorption fingerprints. However, the quantitative analysis of liquid mixtures is still challenging using MIR waveguide sensors, as the absorption spectrum overlaps for multiple organic components accompanied by strong water absorption background. Here, we present an artificial-intelligence-enhanced metamaterial waveguide sensing platform (AIMWSP) for aqueous mixture analysis in the MIR. With the sensitivity-improved metamaterial waveguide and assistance of machine learning, the MIR absorption spectra of a ternary mixture in water can be successfully distinguished and decomposed to single-component spectra for predicting concentration. A classification accuracy of 98.88% for 64 mixing ratios and 92.86% for four concentrations below the limit of detection (972 ppm, based on 3σ) with steps of 300 ppm are realized. Besides, the mixture concentration prediction with root-mean-squared error varying from 0.107 vol % to 1.436 vol % is also achieved. Our work indicates the potential of further extending this sensing platform to MIR spectrometer-on-chip aiming for the data analytics of multiple organic components in aqueous environments.

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Electrically tunable two-dimensional heterojunctions for miniaturized near-infrared spectrometers

Cited by 53 publications

References 59 publications

Miniaturized spectrometers with a tunable van der Waals junction

Miniaturized spectrometers with a tunable van der Waals junction

2D Material Infrared Photonics and Plasmonics

Midinfrared Spectroscopic Analysis of Aqueous Mixtures Using Artificial-Intelligence-Enhanced Metamaterial Waveguide Sensing Platform

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