Results 21 to 30 of about 211,204 (270)

Effect of Nitrogen Doping on the Optical Bandgap and Electrical Conductivity of Nitrogen-Doped Reduced Graphene Oxide

Molecules, 2021
Graphene as a material for optoelectronic design applications has been significantly restricted owing to zero bandgap and non-compatible handling procedures compared with regular microelectronic ones.
Gunawan Witjaksono, Muhammad Junaid, Mohd Haris Khir, Zaka Ullah, Nelson Tansu, Mohamed Shuaib Bin Mohamed Saheed, Muhammad Aadil Siddiqui, Saeed S. Ba-Hashwan, Abdullah Saleh Algamili, Saeed Ahmed Magsi, Muhammad Zubair Aslam, Rab Nawaz   +11 more
doaj   +1 more source

An integrated microring circuit design for optoelectronic transformer applications [PDF]

, 2018
The on-chip scale circuit of the optoelectronic transformer is designed and manipulated using the microring resonator system. By using the monochromatic input light source, the electro-optic signals can be generated and functioned as the step up and down
Ali, J., Amiri, I. S., Chaiwong, K., Chiangga, S., Grattan, K. T. V., Pornsuwancharoen, N., Punthawanunt, S., Singh, G., Youplao, P., Yupapin, P.   +9 more
core   +2 more sources

Ag2ZnSnS4 Nanocrystals Expand the Availability of RoHS Compliant Colloidal Quantum Dots [PDF]

, 2020
The demonstration of the quantum confinement effect in colloidal quantum dots (QDs) has been extensively studied and exploited mainly in Pb and Cd chalcogenide systems.
Figueroba, Alberto, Konstantatos, Gerasimos, Saha, Avijit   +2 more
core   +3 more sources

A Theoretical Analysis of the Frequency Response in p-i-n Photodiodes that Use InGaAs/InP Materials

Micromachines
This investigation is centered on the analysis of frequency response characteristics of a p-i-n photodiode using InxGa1−xAs/InP. The InGaAs/InP can be developed under three conditions: compression, tensile strain, and lattice matching.
Nesrine Bakalem, Abdelkader Aissat, Samuel Dupont, Faouzi Saidi, Mohamed Houcine Dhaou, Jean Pierre Vilcot   +5 more
doaj   +1 more source

A versatile scanning photocurrent mapping system to characterize optoelectronic devices based on 2D materials

, 2017
The investigation of optoelectronic devices based on two-dimensional materials and their heterostructures is a very active area of investigation with both fundamental and applied aspects involved.
Castellanos-Gomez, Andres, de Lara, David Perez, Frisenda, Riccardo, Ko, Tsung-Shine, Lin, Der-Yuh, Reuter, Christoph   +5 more
core   +1 more source

A CMOS Optoelectronic Transceiver with Concurrent Automatic Power Control for Short-Range LiDAR Sensors

Sensors
This paper presents an optoelectronic transceiver (OTRx) realized in a 180 nm CMOS technology for applications of short-range LiDAR sensors, in which a modified current-mode single-ended VCSEL driver (m-CMVD) is exploited as a transmitter (Tx) and a ...
Yejin Choi, Juntong Li, Dukyoo Jung, Seonhan Choi, Sung-Min Park   +4 more
doaj   +1 more source

Cu2ZnSnS4 films with Cu-poor composition prepared by spin coating from a nontoxic methanol-based solution: the effect of annealing temperature

Journal of Asian Ceramic Societies, 2020
In comparison with the stoichiometry and Zn-rich/Cu-poor compositions of Cu2ZnSnS4 (CZTS) photovoltaic material, the properties of Cu-poor films have not been explored adequately.
Ali E. Rakhshani, S. Thomas
doaj   +1 more source

Extended diagnostics of semiconductor UV detectors [PDF]

Biuletyn Wojskowej Akademii Technicznej, 2016
The article presents selected issues of UV detectors’ diagnostics. When choosing the UV detector to a specific application, one should take into account that their optical and electrical parameters can vary significantly during operation. The most common
Joanna Ćwirko, Robert Ćwirko
doaj   +1 more source

Moore–Gibson–Thompson model with the influence of moisture diffusivity of semiconductor materials during photothermal excitation

Frontiers in Physics, 2023
In the present work, the semiconductor material is used to study the moisture diffusivity when a modified Moore–Gibson–Thompson (MGT) model is taken into account.
Shreen El-Sapa, Nidhal Becheikh, Houda Chtioui, Kh. Lotfy, M. A. Seddeek, Alaa A. El-Bary, A. El-Dali, A. El-Dali   +7 more
doaj   +1 more source

Metal-organic chemical vapor deposition of 2D van der Waals materials-The challenges and the extensive future opportunities [PDF]

, 2020
The last decade has witnessed significant progress in two-dimensional van der Waals (2D vdW) materials research; however, a number of challenges remain for their practical applications.
Kwon, Soon-Yong, Lee, Do Hee, Sim, Yeoseon, Wang, Jaewon   +3 more
core   +1 more source