Results 41 to 50 of about 44,940 (168)

Photodiode based on GaP sensitized to short-wave region of UV spectrum

open access: yesТехнологія та конструювання в електронній апаратурі, 2012
An algorithm for the simulation and analysis of the parameters that determine the sensitivity of the photodiode surface-barrier structures based on n+–n-GaP–SnO2(F) has been developed.
Yu. G. Dobrovol’skii
doaj  

Feasibility of Photosynthetically Active Radiation (PAR) Measurement Using LED and Photodiode

open access: yesJournal of Agricultural Sciences, 2012
Photosynthetically Active Radiation (PAR) is measured by high costs commercial PAR sensors.The feasibility of economical PAR measurements became crucial since sensing numerous data instantaneously has great importance of making right decisions for ...
Barış Uzun, Vedat Demir
doaj   +1 more source

Proposal for superconducting photodiode

open access: yes2D Materials
Abstract We propose a concept of a superconducting (SC) photodiode—a device that transforms the energy and ‘spin’ of an external electromagnetic (EM) field into the rectified steady-state supercurrent and develop a microscopic theory describing its properties.
A V Parafilo   +4 more
openaire   +2 more sources

Superlattice avalanche photodiodes

open access: yesConference Proceedings. LEOS '97. 10th Annual Meeting IEEE Lasers and Electro-Optics Society 1997 Annual Meeting, 1997
Summary form only given. InGaAsP-InAlAs superlattice avalanche photodiode (SL-APD) is applied to the receiver of the analog video transmission as well as to the high-bit-rate digital transmission. The low noise, wide bandwidth, low distortion, and wide dynamic range characteristics of the SL-APD are fully exploited in the video transmission system. All
openaire   +1 more source

4H-SiC 64 pixels CMOS image sensors with 3T/4T-APS arrays

open access: yesApplied Physics Express
For radiation-hardened CMOS image sensors (CIS), 4H-SiC 64 pixel array CIS were developed, and real time imaging with an operation frequency of 30 Hz was demonstrated.
Tatsuya Meguro   +5 more
doaj   +1 more source

Exciton-polariton photodiodes

open access: yesNature Communications
Photodiodes are central to high-speed communication, sensing and light-harvesting devices. While silicon and other inorganic semiconductor-based photodiodes have been widely integrated into commercial technologies, photodiodes from excitonic semiconductors continue to maintain high interest in research. Excitonic semiconductors are superior in terms of
Qixiao Zhao   +10 more
openaire   +2 more sources

Scaling and Modeling of High Temperature 4H-SiC p-i-n Photodiodes

open access: yesIEEE Journal of the Electron Devices Society, 2018
4H-SiC p-i-n photodiodes with various mesa areas (40 000 μm2, 2500 μm2, 1600 μm2, and 400 μm2) have been fabricated. Both C-V and I-V characteristics of the photodiodes have been measured at room temperature, 200 °C ...
Shuoben Hou   +3 more
doaj   +1 more source

Development and characterization of a ZnO/Ge photodiode for optical radiation measurements in the near infrared

open access: yesInternational Journal of Metrology and Quality Engineering, 2017
The metrology group of radiometric and pyrometric measurements of INSAT include among others the development of detectors that will be used as a standard in the MMA Laboratory for optical radiation measurements in the visible and infrared spectral range.
Ben Achour Zahra   +2 more
doaj   +1 more source

An Alternative Approach to Detecting Cancer Cells by Multi-Directional Fluorescence Detection System Using Cost-Effective LED and Photodiode

open access: yesSensors, 2019
The enumeration of cellular proliferation by covering from hemocytometer to flow cytometer is an important procedure in the study of cancer development. For example, hemocytometer has been popularly employed to perform manual cell counting.
Kyoungrae Cho   +3 more
doaj   +1 more source

Comparative Analysis of the Selected Photoreceiver Input Stages in Terms of Noise

open access: yesSensors
Semiconductor radiation detectors usually use a specific signal conditioning circuit, ensuring the required detection system parameters. This paper details the noise properties of specific input stages in photoreceivers that detect various types of ...
Krzysztof Achtenberg, Zbigniew Bielecki
doaj   +1 more source

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