Amplification By Optical Composites

Barber, Duane B.; Pollock, Clifford R.; Beecroft, Laura L.; Ober, Christopher K.; Bender, Christopher M.; Burlitch, James M.

doi:10.1364/assl.1997.na5

Cited by 3 publications

(4 citation statements)

References 3 publications

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“…To have a better understanding of the mechanism underlying the trends exhibited by R λ and D*, we measured,the absorption spectrum of an amorphous MoS 2 sample with thickness of T h = 114.5 nm with results as shown in Figure 3a. Using Tauc's equation, 38 which is expressed as…”

Section: Resultsmentioning

confidence: 99%

Amorphous MoS₂ Photodetector with Ultra-Broadband Response

Huang

Zhang

Liu

et al. 2019

ACS Appl. Electron. Mater.

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Photodetectors with the ability to detect light over a broad spectral range at room temperature (RT) are attracting considerable attention because of their wide range of potential applications in electronic and optoelectronic devices. In this work, an ultrabroadband photodetector design based on amorphous MoS2 (a-MoS2) prepared by magnetron sputtering is reported for the first time. In association with a narrow bandgap of 0.196 eV that originated from defects, these devices have realized an ultrabroadband photodetection range from 473 to 2712 nm with photoresponsivity as high as 47.5 mA W–1, which is comparable with most existing broadband photodetectors. Unlike many other photodetectors, which require complex manufacturing processes and rare photoactive materials that are difficult to obtain or fabricate, the amorphous MoS2 photodetector based on the magnetron sputtering technique offers easy and rapid fabrication, ultralow cost, a large-scale manufacturing capability, no detrimental effects on the environment or humans, and compatibility with semiconductor processing. These advantages indicate that the proposed photodetector has significant potential for electronic and optoelectronic applications and offers a new path for development of ultrabroadband photodetectors.

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Section: Resultsmentioning

confidence: 99%

Amorphous MoS₂ Photodetector with Ultra-Broadband Response

Huang

Zhang

Liu

et al. 2019

ACS Appl. Electron. Mater.

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“…This feature makes them an interesting prospect as filler material in composites and coatings. Newly engineered materials have exhibited advanced mechanical properties − (e.g., higher modulus, higher fracture toughness, higher abrasion and wear resistance), a reduced gas and liquid permeability, , improved thermal dimensional stability, increased thermal stability, lower flammability, enhanced optical properties, and increased electrical conductivity because of percolation at low volume fractions. ,, …”

Section: Introductionmentioning

confidence: 99%

Release of Carbon Nanotubes from an Epoxy-Based Nanocomposite during an Abrasion Process

Schlagenhauf

Chu

Buha

et al. 2012

Environ. Sci. Technol.

115

106

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The abrasion behavior of an epoxy/carbon nanotube (CNT) nanocomposite was investigated. An experimental setup has been established to perform abrasion, particle measurement, and collection all in one. The abraded particles were characterized by particle size distribution and by electron microscopy. The abrasion process was carried out with a Taber Abraser, and the released particles were collected by a tube for further investigation. The particle size distributions were measured with a scanning mobility particle sizer (SMPS) and an aerodynamic particle sizer (APS) and revealed four size modes for all measured samples. The mode corresponding to the smallest particle sizes of 300-400 nm was measured with the SMPS and showed a trend of increasing size with increasing nanofiller content. The three measured modes with particle sizes from 0.6 to 2.5 μm, measured with the APS, were similar for all samples. The measured particle concentrations were between 8000 and 20,000 particles/cm(3) for measurements with the SMPS and between 1000 and 3000 particles/cm(3) for measurements with the APS. Imaging by transmission electron microscopy (TEM) revealed that free-standing individual CNTs and agglomerates were emitted during abrasion.

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“…This trend was expected due to the increased number of filler-matrix interfaces with higher loadings, creating greater light scattering and significantly reducing light transmission. 33,35 The results show that materials with the same reported RI values may be selected for high transmission in a specific application; however, if the RI of the materials shows different response with respect to wavelength within the visible spectrum, then the transmission may not be adequate. In this work, it was seen initially that the RI difference should not vary more than 0.005 in order to have 85% transmission for a 1.6 vol.% loading.…”

Section: Resultsmentioning

confidence: 99%

“…This trend was expected due to the increased number of filler–matrix interfaces with higher loadings, creating greater light scattering and significantly reducing light transmission. 33,35…”

Section: Resultsmentioning

confidence: 99%

Refractive index matching for high light transmission composite systems

Keaney¹,

Shearer²,

Panwar³

et al. 2018

Journal of Composite Materials

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Transparent optical polymer/filler systems can be produced into complex shapes for a range of applications, such as lenses, shields, and containers. This work used refractive index liquids as a model for polymer matrices to investigate the degree of refractive index match required to maintain high transmission in an inorganic-filled polymer system (cubic calcium fluoride with particle size of 1 to 5 µm) over the visible spectrum. It was determined that in order to achieve a transparent composite (>85% transmission with 10 mm pathlength) with this filler (using literature reported dispersion data), the materials must have a refractive index match within ±0.007 for 1.6 vol.% loading. With a loading of 3.1 vol.%, the matching range required was reduced to approximately ±0.002.

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Amplification By Optical Composites

Cited by 3 publications

References 3 publications

Amorphous MoS₂ Photodetector with Ultra-Broadband Response

Amorphous MoS₂ Photodetector with Ultra-Broadband Response

Release of Carbon Nanotubes from an Epoxy-Based Nanocomposite during an Abrasion Process

Refractive index matching for high light transmission composite systems

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Amplification By Optical Composites

Cited by 3 publications

References 3 publications

Amorphous MoS2 Photodetector with Ultra-Broadband Response

Amorphous MoS2 Photodetector with Ultra-Broadband Response

Release of Carbon Nanotubes from an Epoxy-Based Nanocomposite during an Abrasion Process

Refractive index matching for high light transmission composite systems

Contact Info

Product

Resources

About

Amorphous MoS₂ Photodetector with Ultra-Broadband Response

Amorphous MoS₂ Photodetector with Ultra-Broadband Response