Results 41 to 50 of about 12,931 (263)

Lateral Structured Phototransistor Based on Mesoscopic Graphene/Perovskite Heterojunctions

open access: yesNanomaterials, 2021
Due to their outstanding optical properties and superior charge carrier mobilities, organometal halide perovskites have been widely investigated in photodetection and solar cell areas.
Dahua Zhou   +5 more
doaj   +1 more source

GaAs-based optoelectronic neurons [PDF]

open access: yes, 1993
An integrated, optoelectronic, variable thresholding neuron implemented monolithically in GaAs integrated circuit and exhibiting high differential optical gain and low power consumption is presented.
Kim, Jae H.   +2 more
core   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

open access: yesAdvanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha   +18 more
wiley   +1 more source

Silicon Nanowire Phototransistor Arrays for CMOS Image Sensor Applications

open access: yesSensors, 2023
This paper introduces a new design of silicon nanowire (Si NW) phototransistor (PT) arrays conceived explicitly for improved CMOS image sensor performance, and comprehensive numerical investigations clarify the characteristics of the proposed devices ...
Hyunsung Jun   +2 more
doaj   +1 more source

Large-signal charge control modeling of photoreceivers for applications up to 40 Gb/s [PDF]

open access: yes, 2009
A charge control model was used to simulate the sensitivity and responsivity in a range of photodetector configurations including heterojunction bipolar phototransistors (HPTs), PIN-HBT, and APDs.
Helme, J.P, Houston, P.A, Tan, C.H
core   +1 more source

Broadband, Flexible, Skin‐Compatible Carbon Dots/Graphene Photodetectors for Wearable Applications

open access: yesAdvanced Functional Materials, EarlyView.
Broadband, flexible photodetectors integrating nitrogen‐rich carbon dots with single‐layer graphene on plastic substrates are demonstrated. A biocompatible chitosan–glycerol electrolyte enables efficient low‐voltage gating and on‐skin operation. The devices exhibit ultraviolet‐to‐near‐infrared response, mechanical robustness under bending, and verified
Nouha Loudhaief   +20 more
wiley   +1 more source

Effects of Group IVA Elements on the Electrical Response of a Ge2Se3-Based Optically Gated Transistor

open access: yesMicromachines
The optically gated transistor (OGT) has been previously demonstrated as a viable selector device for memristor devices, and may enable optical addressing within cross-point arrays.
Md Faisal Kabir, Kristy A. Campbell
doaj   +1 more source

Bidirectional Photoadaptive Organic Heterojunction Synaptic Transistors for Accurate Image Recognition in Machine Vision Systems. [PDF]

open access: yesAdv Sci (Weinh)
Bidirectional photoadaptive organic synaptic phototransistors are developed using complementary n–n and n‐p heterojunctions. These devices enable intelligent in‐sensor processing, markedly enhancing image contrast and edge features under adverse lighting, and achieve a recognition accuracy of 97.4% within ten training cycles for machine vision ...
Xue D   +9 more
europepmc   +2 more sources

Solid state television camera system Patent [PDF]

open access: yes, 1969
Solid state television camera system consisting of monolithic semiconductor mosaic sensor and molecular digital readout ...
Broderick, J. C.   +5 more
core   +1 more source

Monolithic integration of a GaAlAs buried-heterostructure laser and a bipolar phototransistor [PDF]

open access: yes, 1982
A GaAlAs buried-heterostructure laser has been monolithically integrated with a bipolar phototransistor. The heterojunction transistor was formed by the regrowth of the burying layers of the laser.
Bar-Chaim, N.   +5 more
core   +1 more source

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