Atomically Thin Ga2S3 from Skin of Liquid Metals for Electrical, Optical, and Sensing Applications

Manal M. Y. A. Alsaif; Naresh Pillai; Sruthi Kuriakose; Sumeet Walia; Azmira Jannat; Kai Xu; Turki Alkathiri; Md Mohiuddin; Torben Daeneke; Kourosh Kalantar-Zadeh; Jian Zhen Ou; Ali Zavabeti

doi:10.1021/acsanm.9b01133

Atomically Thin Ga2S3 from Skin of Liquid Metals for Electrical, Optical, and Sensing Applications

ACS Applied Nano Materials ◽

10.1021/acsanm.9b01133 ◽

2019 ◽

Vol 2 (7) ◽

pp. 4665-4672 ◽

Cited By ~ 13

Author(s):

Manal M. Y. A. Alsaif ◽

Naresh Pillai ◽

Sruthi Kuriakose ◽

Sumeet Walia ◽

Azmira Jannat ◽

...

Keyword(s):

Liquid Metals ◽

Sensing Applications

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Ultra-stretchable hydrogels with reactive liquid metals as asymmetric force-sensors

Materials Horizons ◽

10.1039/c8mh01561a ◽

2019 ◽

Vol 6 (3) ◽

pp. 618-625 ◽

Cited By ~ 45

Author(s):

Hao Peng ◽

Yumeng Xin ◽

Jun Xu ◽

Huaizhi Liu ◽

Jiuyang Zhang

Keyword(s):

Liquid Metals ◽

Polymer Networks ◽

Synthetic Methods ◽

Force Sensors ◽

Hydrophilic Polymer ◽

Sensing Applications ◽

Reactive Liquid ◽

Asymmetric Force

Liquid metals (LMs) are used as liquid fillers in hydrophilic polymer networks to realize ultra-stretchable hydrogels as asymmetric force-sensors. The existence of liquid metals endows the hydrogel with unique features in synthetic methods and sensing applications.

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Computer simulation study about the dependence of amorphous silicon photonic waveguides efficiency on the material quality

The European Physical Journal Applied Physics ◽

10.1051/epjap/2020190250 ◽

2020 ◽

Vol 90 (3) ◽

pp. 30502

Author(s):

Alessandro Fantoni ◽

João Costa ◽

Paulo Lourenço ◽

Manuela Vieira

Keyword(s):

Amorphous Silicon ◽

High Throughput Screening ◽

Simulation Analysis ◽

Low Cost ◽

Deposition Process ◽

Large Area ◽

Sidewall Roughness ◽

Sensing Applications ◽

Fabrication Defects ◽

The Impact

Amorphous silicon PECVD photonic integrated devices are promising candidates for low cost sensing applications. This manuscript reports a simulation analysis about the impact on the overall efficiency caused by the lithography imperfections in the deposition process. The tolerance to the fabrication defects of a photonic sensor based on surface plasmonic resonance is analysed. The simulations are performed with FDTD and BPM algorithms. The device is a plasmonic interferometer composed by an a-Si:H waveguide covered by a thin gold layer. The sensing analysis is performed by equally splitting the input light into two arms, allowing the sensor to be calibrated by its reference arm. Two different 1 × 2 power splitter configurations are presented: a directional coupler and a multimode interference splitter. The waveguide sidewall roughness is considered as the major negative effect caused by deposition imperfections. The simulation results show that plasmonic effects can be excited in the interferometric waveguide structure, allowing a sensing device with enough sensitivity to support the functioning of a bio sensor for high throughput screening. In addition, the good tolerance to the waveguide wall roughness, points out the PECVD deposition technique as reliable method for the overall sensor system to be produced in a low-cost system. The large area deposition of photonics structures, allowed by the PECVD method, can be explored to design a multiplexed system for analysis of multiple biomarkers to further increase the tolerance to fabrication defects.

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