Results 41 to 50 of about 33,408 (118)

Interface-Engineered Highly Responsive ReS₂ Photodetector

Applied Sciences
Trap states in 2D transition metal dichalcogenides significantly affect the responsivity and response time of photodetectors, and previous ReS2/Si-based heterojunction photodetectors have struggled to simultaneously achieve high responsivity and fast ...
Yunfei Wang, Zijian Wang, Yuan Gao, Chenglin Wang, Haiyan Nan   +4 more
doaj   +1 more source

Dwelling with ambiguity: The role of phenomenological vignettes in transformative processes of Global Citizenship Education (GCE) in non-formal contexts

Encyclopaideia
This article offers a methodological reflection on the use of the phenomenological vignette to analyse ambiguous and dilemmatic experiences in non-formal contexts.
Cinzia Zadra, Stefania Moser
doaj   +1 more source

Stress optimization in DC magnetron sputtered AlN layers for fully clamped bistable piezoelectric plate devices

Micro and Nano Engineering
In this paper, we demonstrate the fabrication and characterization of bistable piezoelectric plates with a precisely tuned residual stress to achieve buckling-induced bistability.
Shareena Muringakodan, Sina Zare Pakzad, Ulrich Schmid, Michael Schneider   +3 more
doaj   +1 more source

Metal–Insulator–Insulator–Metal (MIIM) Ag/SnO2/Al2O3/Ag Diodes Fabricated by Ultraprecise Dispensing and Atomic Layer Deposition

Advanced Electronic Materials
Currently, high‐frequency, ultra‐fast, and tunneling diodes are mainly fabricated using traditional lithography and evaporation techniques, typically limited to wafer sizes.
Aboubacar Savadogo, Klaus Huska, Rohit D. Chavan, Thomas Nyachoti Nyangonda, Jan Feßler, Bernard Odhiambo Aduda, Ulrich Wilhelm Paetzold, Uli Lemmer, Mohamed Hussein   +8 more
doaj   +1 more source

Performance Optimization of Hg_1-xCd_xTe Photovoltaic Detectors Under Strong Illumination Considering Temperature and Wavelength Dependencies

IEEE Photonics Journal
Currently, HgCdTe detectors are advancing towards very long wavelengths and room temperature operation. However, as operating temperatures and illumination intensity increase, the performance of these detectors deteriorates, evidenced by increased dark ...
Jiahui Chen, Wangyong Chen, Linlin Cai, Pengling Yang, Dahui Wang, Manling Shen, Xiangyang Li, Hui Qiao   +7 more
doaj   +1 more source

High Performance Self-Powered Photodetectors Based on Graphene Nanoribbons/Al₂O₃/InGaZnO Heterojunctions

IEEE Photonics Journal
Self-powered photodetectors which operate without external power sources hold immense promise in future photodetection systems. To achieve high-performance self-powered optoelectronic devices, efficient electron-hole pair separation is critical to ...
Xiaoling Ye, Xiaoxiao Zheng, Lei Han, Yu Sun, Liang Wang, Ziheng Li, Wencheng Liu, Benqing Liu, Nan Han, Safia Khan, Syed Hassan Mujtaba Jafri, Mingyang Wang, Yafei Ning, Hu Li   +13 more
doaj   +1 more source

Enhancing responsivity of silicon PIN photodiodes at 1064 nm via light trapping and geometry optimization: a simulation study

Frontiers in Physics
Nd:YAG laser light detection at 1064 nm is widely used in applications requiring high-performance photodiodes to measure low light intensities. This study investigates the impact of light trapping and geometric variations on the responsivity of silicon ...
Fahad Alghannam, Nada S. Alharthi, Mrwan Alayed   +2 more
doaj   +1 more source

Cortical markers of excitation/inhibition balance are associated with sensory responsivity from infancy in longitudinal cohorts enriched for autism and ADHD

Translational Psychiatry
Autism and ADHD are characterised by atypical sensory responsivity, and this may be driven by alterations in the balance of cortical excitation to inhibition (E/I).
Virginia Carter Leno, Jannath Begum-Ali, Amy Goodwin, Luke Mason, Greg Pasco, Nisha Narvekar, Andrew Pickles, Tony Charman, Mark H. Johnson, Emily J. H. Jones, the STAARS Team   +10 more
doaj   +1 more source

SiC free-standing membrane for X-ray intensity monitoring in synchrotron radiation beamlines

Journal of Synchrotron Radiation
For many synchrotron radiation experiments, it is critical to perform continuous, real-time monitoring of the X-ray flux for normalization and stabilization purposes.
Gabriele Trovato, Marzio De Napoli, Christian Gollwitzer, Simone Finizio, Michael Krumrey, Francesco La Via, Luca Lanzanò, Giuliana Milluzzo, Samuele Moscato, Matthias Müller, Francesco Romano, Dario Ferreira Sanchez, Massimo Camarda   +12 more
doaj   +1 more source

Spherical and Aspherical Lenses for Boosting the Performance of Terahertz Imaging Systems

Advanced Photonics Research
A comprehensive study on the enhancement of terahertz (THz) detection through the terajet effect is performed using mesoscale dielectric lenses of different shapes and sizes.
El Hadj Abidi, Jaime Calvo‐Gallego, Alejandro Schulman, Miguel Ferrando‐Bataller, Oleg V. Minin, Igor V. Minin, Jesus E. Velázquez‐Pérez, Yahya Moubarak Meziani   +7 more
doaj   +1 more source