Bootstrapping techniques to improve the bandwidth of transimpedance amplifiers. [PDF]
Transimpedance amplifiers using voltage feedback operational amplifiers are widely used for current to voltage conversion in applications when a moderate/high bandwidth and a high sensitivity are required, such as photodiodes, photomultipliers, electron ...
Hoyle, C., Peyton, A. J.
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Development of CMOS active pixel sensors [PDF]
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This thesis describes an investigation into the suitability of complementary metal oxide semiconductor (CMOS) active pixel sensor (APS) devices for ...
Greig, Thomas Alexander
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Silicon four element p-i-n photodiode with improved characteristics
This article presents the results of the development of silicon coordinate p-i-n photodiodes (PD) with improved parameters. The technological possibilities of reducing the gaps between the responsive areas of multi-element PDs were studied.
Mykola Kukurudziak
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Developing a Portable Spectrometer to Detect Chemical Contaminants in Irrigation Water
Water pollution is a critical issue since it can severely affect health and the environment. The purpose of the study is to develop a portable spectrometer (ESP32-based spectrometer) to detect chemical contaminants in irrigation water by observing the ...
Siti Nadhirah Zainurin +4 more
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The sensitivity of the photodiode will depend on the amount of radiation power that it must register. The characteristics of a photodiode, as is known, are determined by its design.
Yuri Dobrovolsky, Yurii Sorokatyi
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A Silicon Carbide 256 Pixel UV Image Sensor Array Operating at 400 °C
An image sensor based on wide band gap silicon carbide (SiC) has the merits of high temperature operation and ultraviolet (UV) detection. To realize a SiC-based image sensor the challenge of opto-electronic on-chip integration of SiC photodetectors and ...
Shuoben Hou +5 more
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Scalable MoS<sub>2</sub>/Si Photodiode Arrays From Roll-to-Roll Mechanical Exfoliation. [PDF]
A dry roll‐to‐roll route transforms mechanically exfoliated MoS2 flake networks into silicon‐integrated photodiode arrays. The MoS2/Si junctions generate photovoltaic output without applied bias, allowing illuminated pixels to locate light spots and reconstruct simple images.
Sozen Y, Pucher T, Castellanos-Gomez A.
europepmc +2 more sources
Single-Point Detection Architecture via Liquid Crystal Modulation for Hyperspectral Imaging Systems
Hyperspectral imaging (HSI) architectures can acquire one-dimension of spatial information and one-dimension of spectral information on a two-dimensional image sensor for an image, such as in the traditional line-scan HSI architecture.
C. Harrison Brodie +1 more
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The Effect of Bias and Frequency on Amplitude to Phase Conversion of Photodiodes
Fluctuation of the optical power incident on a photodiode will cause phase variation of the electrical signal. This phenomenon is known as amplitude-to-phase (AM-to-PM) conversion. The effects of bias voltage and test frequency on AM-to-PM conversion are
Jiazheng Sun +4 more
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Radiation Effects in Pinned Photodiode CMOS Image Sensors: Pixel Performance Degradation Due to Total Ionizing Dose [PDF]
Several Pinned Photodiode (PPD) CMOS Image Sensors (CIS) are designed, manufactured, characterized and exposed biased to ionizing radiation up to 10 kGy(SiO2 ).
Goiffon, Vincent +20 more
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