Zn(Mg)BeSe-based p-i-n photodiodes operating in the blue-violet and near-ultraviolet spectral range

2000 ◽  
Vol 76 (2) ◽  
pp. 242-244 ◽  
Author(s):  
F. Vigué ◽  
E. Tournié ◽  
J.-P. Faurie
Keyword(s):  
Spectral Range ◽  
Near Ultraviolet

scholarly journals MoS2 Based Photodetectors: A Review

Sensors ◽  
2021 ◽  
Vol 21 (8) ◽  
pp. 2758
Author(s):  
Alberto Taffelli ◽  
Sandra Dirè ◽  
Alberto Quaranta ◽  
Lucio Pancheri
Keyword(s):  
Electric Fields ◽  
Spectral Range ◽  
Performance Metrics ◽  
Transition Metal Dichalcogenides ◽  
Visible Spectral Range ◽  
Detector Performance ◽  
Strong Light ◽  
Near Ultraviolet ◽  
Passivation Layers ◽  
Low Dimensional

Photodetectors based on transition metal dichalcogenides (TMDs) have been widely reported in the literature and molybdenum disulfide (MoS2) has been the most extensively explored for photodetection applications. The properties of MoS2, such as direct band gap transition in low dimensional structures, strong light–matter interaction and good carrier mobility, combined with the possibility of fabricating thin MoS2 films, have attracted interest for this material in the field of optoelectronics. In this work, MoS2-based photodetectors are reviewed in terms of their main performance metrics, namely responsivity, detectivity, response time and dark current. Although neat MoS2-based detectors already show remarkable characteristics in the visible spectral range, MoS2 can be advantageously coupled with other materials to further improve the detector performance Nanoparticles (NPs) and quantum dots (QDs) have been exploited in combination with MoS2 to boost the response of the devices in the near ultraviolet (NUV) and infrared (IR) spectral range. Moreover, heterostructures with different materials (e.g., other TMDs, Graphene) can speed up the response of the photodetectors through the creation of built-in electric fields and the faster transport of charge carriers. Finally, in order to enhance the stability of the devices, perovskites have been exploited both as passivation layers and as electron reservoirs.

1.1.8 Photometry of the Zodiacal Light with the Balloon – Borne Telescope Thisbe

1976 ◽  
Vol 31 ◽  
pp. 52-52
Author(s):  
A. Frey ◽  
W. Hofmann ◽  
D. Lemke ◽  
C. Thum
Keyword(s):  
Spectral Range ◽  
No Reduction ◽  
Intensity Increase ◽  
The Sun ◽  
Atmospheric Ozone ◽  
Zodiacal Light ◽  
Reduction Procedure ◽  
Strong Intensity ◽  
Near Ultraviolet ◽  
Upper Limit

We report on new measurements extending the spectral range of our earlier photometry (Frey et al. 1974) to the near ultraviolet. The residual extinction caused by atmospheric ozone was found to be 0.m25 ± 0.m13 (2950 Å) and 0m36 ± 0m13 (2150 Å) at 41.5 km float altitude. Within the errors of 10-30% arising from calibration and the reduction procedure our measurements at 5000, 3450, and 2950 Å are compatible to a colour of the zodiacal light not different from that of the sun. Our result obtained at 2150 Å is an upper limit, since no reduction of airglow and integrated starlight has been done yet at that wavelength. This upper limit is 30% above a solar-like spectrum. This result is not in contradiction to the 0A0-2 measurements (Lillie 1972). The strong intensity increase he found occurs at wavelengths below 2150 Å.

High detectivity ZnSe-based Schottky barrier photodetectors for blue and near-ultraviolet spectral range

2000 ◽  
Vol 36 (9) ◽  
pp. 826 ◽  
Author(s):  
F. Vigué ◽  
P. de Mierry ◽  
J.-P. Faurie ◽  
E. Monroy ◽  
F. Calle ◽  
...  
Keyword(s):  
Schottky Barrier ◽  
Spectral Range ◽  
Near Ultraviolet

Dispersionskurven für Anthracen, Tetracen, para-Terphenyl, trans-Stilben und Plastikszintillator NE 102 A

1968 ◽  
Vol 23 (2) ◽  
pp. 311-314 ◽  
Author(s):  
R. W. Amberger ◽  
A. Flammersfeld
Keyword(s):  
Spectral Range ◽  
Plastic Scintillator ◽  
New Method ◽  
Refractive Indices ◽  
Interferometric Method ◽  
Near Ultraviolet ◽  
Trans Stilbene

A new method of determining the thickness of transparent platelets (5 —100 μ) was combined with OBREIMOW’S interferometric method of measuring refractive indices. The dispersion of the refractive indices of anthracene, tetracene, p-terphenyl, trans-stilbene, and plastic scintillator was determined in the visible and near ultraviolet spectral range.

scholarly journals Laser Photoluminescence Spectroscopy of the Subsurface Microstructure in a Nafion Polymer Membrane in Deuterated Water

2019 ◽  
pp. 48-65 ◽  
Author(s):  
N.F. Bunkin ◽  
Ig.S. Golyak ◽  
Il.S. Golyak ◽  
V.A. Kozlov ◽  
A.E. Primenko ◽  
...  
Keyword(s):  
Ultraviolet Radiation ◽  
Spectral Range ◽  
Grazing Incidence ◽  
Polymer Membrane ◽  
Photoluminescence Spectroscopy ◽  
Nafion Membrane ◽  
Deuterated Water ◽  
Polymer Swelling ◽  
Near Ultraviolet ◽  
Subsurface Microstructure

The paper describes experiments in exposing the surface of a water-swollen Nafion polymer membrane to near ultraviolet radiation at grazing incidence. Ultraviolet radiation caused the surface of the Nafion polymer membrane to photoluminesce in a specific spectral range. This luminescence appears due to the presence of sulphonic acid groups at the ends of perfluorovinyl ether groups that form the polytetrafluoroethylen base of the Nafion membrane. We show that the photoluminescence signal is an important parameter for describing the process of polymer swelling in water

Submicron imaging in the EUV spectral range using high-harmonic radiation

2003 ◽  
Vol 104 ◽  
pp. 149-152 ◽  
Author(s):  
M. Wieland ◽  
R. Früke ◽  
T. Wilhein ◽  
U. Kleineberg ◽  
M. Pohl ◽  
...  
Keyword(s):  
Spectral Range ◽  
High Harmonic ◽  
Harmonic Radiation

Results of Spatial Structure of Atmosphere Radiation in a Spectral Range (1.5–2) µm Research

2018 ◽  
pp. 7-13
Author(s):  
Anton M. Mishchenko ◽  
Sergei S. Rachkovsky ◽  
Vladimir A. Smolin ◽  
Igor V . Yakimenko
Keyword(s):  
Spatial Structure ◽  
Unmanned Aerial Vehicle ◽  
Wavelength Range ◽  
Spectral Range ◽  
Near Ir ◽  
Optoelectronic Systems ◽  
Aerial Vehicle

Results of experimental studying radiation spatial structure of atmosphere background nonuniformities and of an unmanned aerial vehicle being the detection object are presented. The question on a possibility of its detection using optoelectronic systems against the background of a cloudy field in the near IR wavelength range is also considered.

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