Results 131 to 140 of about 39,529 (311)

Ionic-electronic photodetector for vision assistance with in-sensor image processing

open access: yesNature Communications
The human eye is highly advanced but limited by color blindness and poor adaptation to changing light. Artificial photodetectors attempt to mimic vision but often require complex processing to overcome these limitations.
Zhipeng Zhong   +13 more
doaj   +1 more source

High-speed waveguide integrated silicon photodetector on a SiN-SOI platform for short reach datacom

open access: yes, 2019
We present waveguide integrated high-speed Si photodetector integrated with silicon nitride (SiN) waveguide on SOI platform for short reach data communication in 850 nm wavelength band.
Saumitra (17509488)   +3 more
core   +1 more source

Photonic‐Enabled Energy‐Efficient Transparent Neuromorphic Computing Devices: A Review

open access: yesAdvanced Science, EarlyView.
Transparent photonic neuromorphic computing devices merge optics and brain‐inspired computing to overcome von Neumann bottlenecks with ultrafast, low‐energy processing. By exploiting transparent oxides, 2D materials, phase‐change materials, and hybrid heterostructures, these platforms enable photonic synapses, memory, and logic for see‐through edge ...
Shuvaraj Ghosh   +8 more
wiley   +1 more source

Scalable MoS2/Si Photodiode Arrays From Roll‐to‐Roll Mechanical Exfoliation

open access: yesAdvanced Science, EarlyView.
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.
Yigit Sozen   +2 more
wiley   +1 more source

A simple Al/SRO/Si structure with silicon nanoparticles as a UV and Vis photodetector [PDF]

open access: yes, 2009
A photodetector that shows high photocurrent in the ultraviolet and visible wavelengths has been fabricated. The device consists of a metal-oxide-semiconductor (MOS)-like grid structure where the dielectric layer is a silicon-rich oxide (SRO) film.
ALFREDO MORALES SANCHEZ   +1 more
core  

Review of Gastrointestinal Capsule Robots: Materials, Actuation, Diagnostics, and Therapeutics

open access: yesAdvanced Science, EarlyView.
This review examines gastrointestinal capsule robots through a systems engineering lens, covering shell materials, actuation and localization strategies, diagnostic modalities, therapeutic interventions, and commercialization status. By mapping the complete technological chain from fabrication to clinical deployment, this work identifies critical gaps ...
Zengsheng Li   +8 more
wiley   +1 more source

A Flexible Dual-Mode Photodetector for Human–Machine Collaborative IR Imaging

open access: yesNano-Micro Letters
Highlights An optical/electric dual-mode photodetector array for human–machine collaborative infrared imaging was demonstrated. The responsivity of the photothermoelectric photodetector was improved by the geometrically asymmetric electrodes.
Huajing Fang   +7 more
doaj   +1 more source

A GaN photodetector integrated structure for wavelength characterization of ultraviolet light

open access: yes, 2008
An interesting GaN photodetector structure, which can be used for characterizing the wavelength of incident ultraviolet light, is proposed. It is composed of two back-to-back integrated diodes, i.e.
Zhang, SM   +6 more
core  

Traveling-wave photodetector has sub-nanosecond response [PDF]

open access: yes, 1970
Mercury-doped germanium photodetector uses waveguide which increases the absorption of microwave energy within the photodetectors. Waveguide and photodetector are placed in liquid helium Dewar and cooled.
Sun, C., Walsh, T. E.
core  

Multispectral UV Imaging on Capacitive CMOS Arrays Enabled by Solution‐Processed Metal‐Oxide Nanoparticles

open access: yesAdvanced Science, EarlyView.
Ultraviolet (UV) imagers are important for a variety of applications but often require dedicated semiconductor process flows. Here, a versatile capacitive CMOS platform is transformed into a visible‐blind, multispectral UV imager through post‐CMOS functionalization with solution‐processed metal‐oxide nanoparticles. The UV‐induced photodielectric effect
Suman Kundu   +5 more
wiley   +1 more source

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