Results 21 to 30 of about 3,090 (200)

Design and Optimization of GeSn Waveguide Photodetectors for 2-µm Band Silicon Photonics

open access: yesSensors, 2022
Silicon photonics is emerging as a competitive platform for electronic–photonic integrated circuits (EPICs) in the 2 µm wavelength band where GeSn photodetectors (PDs) have proven to be efficient PDs. In this paper, we present a comprehensive theoretical
Soumava Ghosh   +5 more
doaj   +1 more source

Investigation of Ga2O3-Based Deep Ultraviolet Photodetectors Using Plasma-Enhanced Atomic Layer Deposition System

open access: yesSensors, 2020
In this work, Ga2O3 films were deposited on sapphire substrates using a plasma-enhanced atomic layer deposition system with trimethylgallium precursor and oxygen (O2) plasma.
Shao-Yu Chu   +5 more
doaj   +1 more source

Self‐powered broadband kesterite photodetector with ultrahigh specific detectivity for weak light applications

open access: yesSusMat, 2023
Kesterite Cu2ZnSn(S,Se)4 (CZTSSe) is a promising candidate for photodetector (PD) applications thanks to its excellent optoelectronic properties. In this work, a green solution‐ processed spin coating and selenization‐processed thermodynamic or kinetic ...
Guang‐Xing Liang   +11 more
doaj   +1 more source

Photoconductive Detector Based on CdTe Nanorods [PDF]

open access: yesEngineering and Technology Journal, 2015
CdTenanorods have been prepared with the different reaction time period from 1hour to 3 hours. CdTenanorods visible photoconductive detector films have been prepared on porous silicon layer with etching time 10 min.
Fatima Amer   +3 more
doaj   +1 more source

Balancing detectivity and sensitivity of plasmonic sensors with surface lattice resonance

open access: yesNanophotonics, 2023
Resonators are at the core of optical sensors enhancing light–analyte interaction and leading to higher sensitivities. Maximizing the sensitivity is an obvious objective function for the resonator design.
Li Zhichao   +5 more
doaj   +1 more source

Ultimate figures of merit broadband self-powered obliquely deposited antimony thin film laser detectors

open access: yesScientific Reports, 2022
Fabrication of a fast and high detectivity infrared detector operating at room temperature represents a big challenge. Due to the small energy gap of the semiconducting materials used for infrared detectors, the noise becomes considerable factor and the ...
Walid K. Hamoudi   +2 more
doaj   +1 more source

Advances in perovskite photodetectors

open access: yesInfoMat, 2020
Perovskite photodetectors have gradually shown preeminent photoelectric performance due to the unique material properties. In recent years, lots of works have been reported in improving the sensitivity, changing detection spectrum range and enhancing ...
Chenglong Li   +4 more
doaj   +1 more source

Serial MTJ-Based TMR Sensors in Bridge Configuration for Detection of Fractured Steel Bar in Magnetic Flux Leakage Testing

open access: yesSensors, 2021
Thanks to high sensitivity, excellent scalability, and low power consumption, magnetic tunnel junction (MTJ)-based tunnel magnetoresistance (TMR) sensors have been widely implemented in various industrial fields.
Zhenhu Jin   +3 more
doaj   +1 more source

Impact of Various Thermistors on the Properties of Resistive Microbolometers Fabricated by CMOS Process

open access: yesMicromachines, 2022
Microbolometers based on the CMOS process has the important advantage of being automatically merged with circuits in the fabrication of larger arrays, but they typically suffer from low detectivity due to the difficulty in realizing high-sensitivity ...
Yaozu Guo   +4 more
doaj   +1 more source

A Silicon Sub-Bandgap Near-Infrared Photodetector with High Detectivity Based on Textured Si/Au Nanoparticle Schottky Junctions Covered with Graphene Film

open access: yesSensors, 2023
We present a straightforward approach to develop a high-detectivity silicon (Si) sub-bandgap near-infrared (NIR) photodetector (PD) based on textured Si/Au nanoparticle (NP) Schottky junctions coated with graphene film.
Xiyuan Dai   +7 more
doaj   +1 more source

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