Results 11 to 20 of about 17,235 (255)

Metasurface Photodetectors [PDF]

open access: yesMicromachines, 2021
Photodetectors are the essential building blocks of a wide range of optical systems. Typical photodetectors only convert the intensity of light electrical output signals, leaving other electromagnetic parameters, such as the frequencies, phases, and polarization states unresolved.
Jinzhao Li   +3 more
openaire   +3 more sources

A Silicon Electromechanical Photodetector [PDF]

open access: yesNano Letters, 2013
Opto-mechanical systems have enabled wide-band optical frequency conversion and multi-channel all-optical radio frequency amplification. Realization of an on-chip silicon communication platform is limited by photodetectors needed to convert optical information to electrical signals for further signal processing.
Tallur, Siddharth, Bhave, Sunil A.
openaire   +3 more sources

Electromechanically reconfigurable plasmonic photodetector with a distinct shift in resonant wavelength

open access: yesMicrosystems & Nanoengineering, 2023
Plasmonic photodetectors have received increasing attention because their detection properties can be designed by tailoring their metal structures on surfaces without using any additional components.
Masaaki Oshita, Shiro Saito, Tetsuo Kan
doaj   +1 more source

Ultraviolet Photodetector Based on Poly(3,4-Ethylenedioxyselenophene)/ZnO Core–Shell Nanorods p-n Heterojunction

open access: yesNanoscale Research Letters, 2022
In this work, we successfully assembled an organic–inorganic core–shell hybrid p-n heterojunction ultraviolet photodetector by the electropolymerization deposition of poly(3,4-ethylenedioxyselenophene) (PEDOS) on the surface of zinc oxide nanoarrays (ZnO
Aygul Kadir   +7 more
doaj   +1 more source

High-Speed Response Si PIN Photodetector Fabricated and Studied for Visible and Near Infrared Spectral Detection [PDF]

open access: yesEngineering and Technology Journal, 2008
In the present work , PIN photodetector has been fabricated by vacuum evaporationtechnique, Al was evaporated on top side of an intrinsic – type silicon and In was evaporatedon down side and doped for each sides of an intrinsic silicon with thermal ...
Khalid Z. Yahiya
doaj   +1 more source

Recent advances in two-dimensional graphitic carbon nitride based photodetectors

open access: yesMaterials & Design, 2023
Graphitic carbon nitride (g-C3N4) is a kind of low cost and environment-friendly 2D polymer semiconductor that exhibits a tunable band gap, high thermal stability, intriguing optoelectronic properties and broad device applications.
Xiwei Zhang   +7 more
doaj   +1 more source

Self-driven WSe2 photodetectors enabled with asymmetrical van der Waals contact interfaces

open access: yesnpj 2D Materials and Applications, 2020
Self-driven photodetectors that can detect light without any external voltage bias are important for low-power applications, including future internet of things, wearable electronics, and flexible electronics. While two-dimensional (2D) materials exhibit
Changjian Zhou   +6 more
doaj   +1 more source

Carbon Nanodots as a Potential Transport Layer for Boosting Performance of All-Inorganic Perovskite Nanocrystals-Based Photodetector

open access: yesCrystals, 2021
A low-cost and simple drop-casting method was used to fabricate a carbon nanodot (C-dot)/all-inorganic perovskite (CsPbBr3) nanosheet bilayer heterojunction photodetector on a SiO2/Si substrate.
Hassan Algadi   +4 more
doaj   +1 more source

Investigation of the Characteristics of a Photodetector with a High Photocurrent when Transmitting Microwave Radio Signals Through an Optical Fiber

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника, 2020
Introduction. At present, an optical transmission of a microwave signal is of great scientific and practical interest. Moreover, this transmission line can also be used to create microwave photonic devices.
I. Yu. Tatsenko   +3 more
doaj   +1 more source

Self-Driven Photo-Polarized Water Molecule-Triggered Graphene-Based Photodetector

open access: yesResearch, 2023
Flowing water can be used as an energy source for generators, providing a major part of the energy for daily life. However, water is rarely used for information or electronic devices.
Shisheng Lin   +7 more
doaj   +1 more source

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