Results 1 to 10 of about 801,069 (309)

Dark Current Noise Correction Method Based on Dark Pixels for LWIR QWIP Detection Systems

open access: yesApplied Sciences, 2022
The long-wave infrared (LWIR) quantum-well photodetector (QWIP) operates at low temperatures, but is prone to focal plane temperature changes when imaging in complex thermal environments.
Haoting Du   +4 more
doaj   +2 more sources

On the Origin of Dark Current in Organic Photodiodes [PDF]

open access: yesAdvanced Optical Materials, 2019
AbstractMinimizing the reverse bias dark current while retaining external quantum efficiency is crucial if the light detection sensitivity of organic photodiodes (OPDs) is to compete with inorganic photodetectors. However, a quantitative relationship between the magnitude of the dark current density under reverse bias (  Jd) and the properties of the ...
Giulio Simone   +6 more
openaire   +2 more sources

Cramér–Rao Bounds for Beam Tracking With Photon Counting Detector Arrays in Free-Space Optical Communications

open access: yesIEEE Open Journal of the Communications Society, 2021
Optical beam center position on an array of detectors is an important parameter that is essential for estimating the angle-of-arrival of the incoming signal beam.
Muhammad Salman Bashir   +2 more
doaj   +1 more source

A High-Performance UVA Photodetector Based on Polycrystalline Perovskite MAPbCl3/TiO2 Nanorods Heterojunctions

open access: yesSensors, 2023
The application of TiO2 nanorods in the field of ultraviolet (UV) photodetectors is hindered by a high dark current, which is attributed to crystal surface defects and intrinsic excitation by carrier thermal diffusion.
Yupeng Zhang   +7 more
doaj   +1 more source

Fully Depleted, Trench-Pinned Photo Gate for CMOS Image Sensor Applications

open access: yesSensors, 2020
Tackling issues of implantation-caused defects and contamination, this paper presents a new complementary metal−oxide−semiconductor (CMOS) image sensor (CIS) pixel design concept based on a native epitaxial layer for photon detection, charge ...
Francois Roy   +10 more
doaj   +1 more source

Temperature Dependence Study of Electrical and Electro-Optical Performances of Midwave Infrared Ga-Free T2SL Barrier Photodetector

open access: yesApplied Sciences, 2022
In this paper, we report on temperature dependence performances of a midwave infrared (MWIR) Ga-free InAs/InAsSb type-II superlattice (T2SL) barrier (XBn) photodetector grown by molecular beam epitaxy on n-type GaSb substrate.
Maxime Bouschet   +6 more
doaj   +1 more source

“GeSn Rule-23”—The Performance Limit of GeSn Infrared Photodiodes

open access: yesSensors, 2023
Group-IV GeSn photodetectors (PDs) compatible with standard complementary metal–oxide-semiconductor (CMOS) processing have emerged as a new and non-toxic infrared detection technology to enable a wide range of infrared applications.
Guo-En Chang, Shui-Qing Yu, Greg Sun
doaj   +1 more source

Temperature Sensors Integrated into a CMOS Image Sensor

open access: yesProceedings, 2017
In this work, a novel approach is presented for measuring relative temperature variations inside the pixel array of a CMOS image sensor itself. This approach can give important information when compensation for dark (current) fixed pattern noise (FPN) is
Accel Abarca   +3 more
doaj   +1 more source

Dark Current Measurement and Noise Correction Method for LWIR QWIP Detection System Based on Focal-Plane Temperature

open access: yesApplied Sciences, 2023
The performance of long-wave infrared (LWIR) quantum well (QWIP) detection systems is seriously affected by the dark current of the detectors. Tiny variations in the focal-plane temperature of the devices cause fluctuations in the dark current, which in ...
Haoting Du   +6 more
doaj   +1 more source

Defects formation on the surface of Si-substrates during thermal sputtering of gold

open access: yesТехнологія та конструювання в електронній апаратурі, 2023
Silicon photodetectors, in particular p–i–n photodiodes, are widely used as sensors of optical radiation. With technological advances, the requirements for the parameters and reliability of these elements of solid-state electronics are increasing sharply,
Mykola Kukurudziak   +1 more
doaj   +1 more source

Home - About - Disclaimer - Privacy