Results 71 to 80 of about 12,748 (262)

Scalable MoS2/Si Photodiode Arrays From Roll‐to‐Roll Mechanical Exfoliation

Advanced Science, EarlyView.
A dry roll‐to‐roll route transforms mechanically exfoliated MoS2 flake networks into silicon‐integrated photodiode arrays. The MoS2/Si junctions generate photovoltaic output without applied bias, allowing illuminated pixels to locate light spots and reconstruct simple images.
Yigit Sozen, Thomas Pucher, Andres Castellanos‐Gomez   +2 more
wiley   +1 more source

Avalanche LEDs Based on Nanostructured Silicon for Microwave Frequency Range

Доклады Белорусского государственного университета информатики и радиоэлектроники
Development of an efficient light signal source is a basic necessity for the development of silicon photonics. Avalanche silicon light emitting diodes (LEDs) can serve as such a source. The article discusses avalanche LEDs based on nanostructured silicon.
S. K. Lazarouk, A. A. Leshok, A. V. Dolbik, L. P. Tamashevich, A. Y. Klutsky, V. V. Dudich, V. A. Labunov, S. A. Efimenko, N. S. Kovalchuk, E. P. Kitsyuk, R. M. Ryazanov, A. S. Basaev, V. V. Svetukhin   +12 more
doaj   +1 more source

Photoelectric Imaging of the Optically Inactive Charge State of Silicon‐Vacancy Defects in Diamond

Advanced Science, EarlyView.
Although the doubly negative charge state of the SiV center in diamond is predicted to ionize only in the ultraviolet and is therefore considered optically inaccessible, we demonstrate visible‐range photoelectric imaging enabled by a previously unrecognized regime of laser‐assisted tunneling. ABSTRACT The investigation of optically active point defects
Ilia Chuprina, Gergő Thiering, Emilie Bourgeois, Anna Ermakova, Dmitry Budker, Adam Gali, Milos Nesladek, Petr Siyushev, Fedor Jelezko   +8 more
wiley   +1 more source

A novel full-chip afterpulsing evaluation technique for 116 × 160 Ge-on-Si SPAD array [PDF]

APL Photonics
This Letter presents a novel on-chip afterpulsing characterization method demonstrated using gated-mode short-wave infrared single photon avalanche diode arrays, effectively overcoming the measurement limitations of conventional methods.
Chi-En Chen, Hon-Yih Tu, Shih-Min Huang, Pi-Ju Cheng, Ming-Chieh Hsu, Tzu-Jui Wang, Shang-Fu Yeh, Calvin Yi-Ping Chao, Jau-Yang Wu, Chao-Hsin Wu   +9 more
doaj   +1 more source

Nanoscale Confinement Enhances Ultrafast Demagnetization

Advanced Science, EarlyView.
Next generation spintronics may depend on successfully combining femtosecond spin dynamics with nanoscale device miniaturization. We address this by systematically studying the effect of nanoscale confinement on the femtosecond demagnetization of Iron. By combining ultrafast experiments sensitive to spins, charge carriers, and phonons, we uncover a nm ...
Yoav William Windsor, Tobias Lojewski, Moumita Kundu, Klaus Sokolowski‐Tinten, Nico Rothenbach, Andrea Eschenlohr, Markus Ernst Gruner, Katharina Ollefs, Carolin Schmitz‐Antoniak, Soma Salamon, Daniela Zahn, Laurenz Rettig, Christian Schüßler‐Langeheine, Niko Pontius, Renkai Li, Mianzhen Mo, Suji Park, Xiaoshe Shen, Stephen Weathersby, Xijie Wang, Rossitza Pentcheva, Heiko Wende, Ulrich Nowak, Uwe Bovensiepen   +23 more
wiley   +1 more source

An Avalanche Effect Nanomodulator Triggers Cascade Ferroptosis/Cuproptosis for Immunosuppressive Microenvironment Remodeling

Advanced Science, EarlyView.
A nanomodulator called L‐Arginine/lificiguat@Copper‐hollow Prussian blue@Calcium phosphate nanoparticles is constructed to launch a self‐amplifying “avalanche effect” in tumor cells. The ensuing cascade, triggered by the acidic tumor microenvironment and near‐infrared light, induces calcium overload, generates a reactive oxygen species and reactive ...
Hongmei Zhou, Caixi Yu, Guilan Xu, Lijuan Liu, Yujia Liang, Yulin Liang, He Ding, Litu Zhang, Piaoping Yang, Chen Wang   +9 more
wiley   +1 more source

A Substrate-Dissipating (SD) Mechanism for a Ruggedness-Improved SOI LDMOS Device

IEEE Journal of the Electron Devices Society, 2018
An SOI LDMOS device with improved ruggedness under unclamped inductive switching (UIS) is described based on the substrate-dissipating (SD) mechanism.
Bing Wang, Zhigang Wang, James B. Kuo
doaj   +1 more source

Multiphoton Quantum Reservoirs For Robust Multidimensional Computing

Advanced Science, EarlyView.
Projective measurements reveal hidden multidimensional quantum networks within classical multiphoton fields, enabling robust quantum reservoirs for room‐temperature quantum simulation, prediction, and information processing. These networks transform noisy classical photonic platforms into scalable quantum computational architectures.
Mingyuan Hong, Mario A. Quiroz‐Juarez, Riley B. Dawkins, Fatemeh Mostafavi, Jannatul Ferdous, Addison Wilberg, Blas M. Rodriguez‐Lara, Justin Woodring, Chenglong You, Roberto de J. León‐Montiel, Omar S. Magaña‐Loaiza   +10 more
wiley   +1 more source

Observations and numerical simulations of the braking effect of forests on large-scale avalanches

Annals of Glaciology, 2018
Although the disaster reduction effects of forest braking have long been known empirically, they have not been known in detail down to recent. In this study, we ascertained forest braking effect by numerical simulations using the avalanche dynamics ...
Yukari Takeuchi, Koichi Nishimura, Abani Patra   +2 more
doaj   +1 more source

Photoresponse Properties of Ambipolar Transport in WSe2 Field‐Effect Transistors

Advanced Electronic Materials, EarlyView.
This study explores the photoresponse of WSe2 ambipolar field‐effect transistors, which exhibit unipolar, saturation, and ambipolar transport regions. Light illumination induces a shift of critical voltage with enhanced photocurrent generation driven by the photogating effect without the material degradation seen in avalanche photodetectors. This study
Jongeun Yoo, Seongmin Ko, Sunggyu Ryoo, Jaehyoung Park, Jaeyoung Kim, Juntae Jang, Jinwoo Sim, Donguk Kim, SeungNam Cha, Chongwu Zhou, Kyungjune Cho, Takhee Lee   +11 more
wiley   +1 more source