Results 51 to 60 of about 66,270 (345)

Operating principles of pin diodes

open access: yesElectrical Engineering in Japan, 2007
AbstractAnalytical models of the pin diode in a small‐current operation are not known yet. This article presents a simple analytical model of the pin diode operation with its confirmation by a numerical simulation. At the onset, carrier recombinations are not included for the sake of simplicity. The exact JF−VF characteristic $[J_{F} \propto \hbox{exp}(
openaire   +2 more sources

Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)

open access: yesAdvanced Functional Materials, EarlyView.
Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao   +5 more
wiley   +1 more source

Performance analysis of a tunable absorber based on active frequency selective surface

open access: yesZhongguo Jianchuan Yanjiu, 2020
Objectives A periodic absorber can absorb incident electromagnetic waves and effectively reduce the reflectivity of a target. To this end, a novel microwave absorber based on an active frequency selective surface (AFSS) is proposed in this paper.
ZENG Xianliang, ZHANG Linxi, WAN Guobin
doaj   +1 more source

RETRACTED: Research on dispersion compensation using avalanche photodiode and pin photodiode

open access: yesIET Collaborative Intelligent Manufacturing, 2021
With the growing demand for usage among Internet users, inventions related to increase in the capacity and bandwidth of transmission channels are more significant nowadays.
Yanxia Ma   +4 more
doaj   +1 more source

Electronically Controlled Frequency Agile Beam Scanning Reflectarray Antenna with Integrated Control Unit

open access: yesJournal of High-Frequency Communication Technologies, 2023
This paper reports the design, development, fabrication, and testing of a 225-element reconfigurable reflectarray (RRA) antenna with frequency agility and beam steering capabilities.
Kavitha Narayanasamy   +2 more
doaj   +1 more source

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

open access: yesAdvanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong   +12 more
wiley   +1 more source

Computer Simulation of a Surface Charge Nanobiosensor with Internal Signal Integration

open access: yesBiosensors, 2021
The ionized states of molecular analytes located on solid surfaces require profound investigation and better understanding for applications in the basic sciences in general, and in the design of nanobiosensors, in particular.
Dmitry Dyubo, Oleg Yu. Tsybin
doaj   +1 more source

Design of Pin Diode Detector [PDF]

open access: yes, 2001
A good light detector is when it could convert all the photon to the electrical signal in high speed. The junction photodetector is the most common photodetection device.
Md Yunus, Nurul Amziah
core  

High Light Utilization and Color Rendering in Vacuum‐Deposited Semitransparent Perovskite Solar Cells

open access: yesAdvanced Materials, EarlyView.
In this work, low bandgap (≈1.55 eV) semitransparent perovskite solar cells (ST‐PSCs) having thin (thickness < ≈100 nm) perovskite layers and transparent conductive oxide‐based rear electrodes are fabricated using vacuum‐deposition methods. Two different ST‐PSCs demonstrated a high light utilization efficiency value of 4.2 (PCE: 9.26% and AVT: 45.3 ...
Abhyuday Paliwal   +9 more
wiley   +1 more source

Mechanical Stress Effects on 4H-Silicon Carbide Power Diodes

open access: yesIEEE Open Journal of Power Electronics
This study discusses the effect of stress on 4H-silicon carbide (4H-SiC) power diodes using numerical simulations. Two power diodes were evaluated; namely, a 600 V PiN diode and 1.8 kV junction barrier Schottky (JBS) diode.
Takaya Sugiura   +2 more
doaj   +1 more source

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