Results 11 to 20 of about 39,529 (311)
Solution‐Processed Multi‐Junction Optoelectronic Synapses for Mode‐Switchable SWIR Neuromorphic Vision Sensing [PDF]
Advanced Science, EarlyView.A novel bias‐programmable shortwave infrared (SWIR) vision sensor is developed using multi‐junction colloidal quantum dots (QDs). Under varying applied voltage, the back‐to‐back rectifying junctions effectively tune trapping centers to switch the device between high‐speed photodetector and persistent synapse modes.
Zhuoyang He +6 more
wiley +2 more sources
Vertical Ge photodetector base on InP taper waveguide
Results in Physics, 2018 In this work, simulation is conducted to investigate Ge photodetectors monolithically integrated on Si chip. The performance of vertical Germanium photodetector with FDTD Solutions (optical simulation) and electrical simulation has been studied ...
Iraj Sadegh Amiri +5 more
doaj +2 more sources
Metasurface Photodetectors [PDF]
Micromachines, 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
Microsystems & 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
Nanoscale 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]
Engineering 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
Materials & 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
Thermo-phototronic Effect for Self-Powered Photodetector using n-3C-SiC/p-Si Heterostructure
, 2022 This paper reports the thermo-phototronic effect in a 3C-SiC/Si heterostructure, showing a significant enhancement in the sensitivity of a photodetector.
Nguyen, NT +7 more
core +1 more source
Self-driven WSe2 photodetectors enabled with asymmetrical van der Waals contact interfaces
npj 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