Results 121 to 130 of about 130,740 (286)

Highly Responsive Gate-Controlled p-GaN/AlGaN/GaN Ultraviolet Photodetectors with a High-Transmittance Indium Tin Oxide Gate

Micromachines
This work presents highly responsive gate-controlled p-GaN/AlGaN/GaN ultraviolet photodetectors (UVPDs) on Si substrates with a high-transmittance ITO gate.
Zhanfei Han, Xiangdong Li, Hongyue Wang, Yuebo Liu, Weitao Yang, Zesheng Lv, Meng Wang, Shuzhen You, Jincheng Zhang, Yue Hao   +9 more
doaj   +1 more source

Photochemical Properties of Precipitated Titania Aerosol Produced by Powdering of Crystal Rutile under Ambient Air

Journal of Chemistry, 2013
It is shown that the quantum yields of oxygen photoadsorption and carbon dioxide photodesorption on TiO2 are significantly higher under illumination by quanta with energy from the surface absorption region of TiO2 when it is not produced by the ...
Valery Zakharenko, Alexey Filimonov
doaj   +1 more source

Quasi‐Static to Supersonic Energy Absorption of Nanoarchitected Tubulanes and Schwarzites

Advanced Functional Materials, EarlyView.
Nanoarchitected energy‐absorptive Tubulanes exhibit record energy absorption under quasi‐static conditions and exceptional inelastic energy dissipation under 750 m s−1 ballistics impact, with high performance spanning strain rates of 12 orders of magnitude.
Peter Serles, Alianna Maguire, Thomas Butruille, Jet Lem, Shuo Yang, Pedro Guerra Demingos, Sahar Choukir, Michel Haché, Boran Kumral, Katherine Jia, Charles Jia, Yu Zou, Chandra Veer Singh, Carlos M. Portela, Jun Lou, Pulickel M. Ajayan, Tobin Filleter   +16 more
wiley   +1 more source

Indirect Band Edge and Chain‐Locked Linear Dichroism in the Quasi‐1D Van der Waals Antiferromagnet AgCrP2S6

Advanced Functional Materials, EarlyView.
AgCrP2S6 reveals a momentum‐indirect band edge (≈1.35 eV) and chain‐locked linear dichroism: the first direct transitions emerge at 1.6–1.8 eV for E||a. Resonant Raman and photoemission corroborate this assignment. In ACPS/graphene heterostructures, photocurrent turns on above ≈1.5 eV and follows the same polarization selection rules (anisotropy ≈0.53),
Oleksandr Volochanskyi, Sabrina Juergensen, Václav Valeš, Kumari Surbhi, Martin Mergl, Kseniia Mosina, Zdeněk Sofer, Jan Honolka, Patryk Kusch, Martin Kalbáč   +9 more
wiley   +1 more source

Nanothermometry in Living Cells: Physical Limits, Conceptual and Material Challenges

Advanced Functional Materials, EarlyView.
Heat and temperature are fundamental to life. When nanothermometers began probing regions as small as a living cell, they triggered controversial claims of large intracellular temperature gradients. We review physical constraints energy‐conservation, entropy production, thermodynamic fluctuations, and molecular dynamics.
Taras Plakhotnik
wiley   +1 more source

Microwave quantum illumination using a digital receiver. [PDF]

Sci Adv, 2020
Barzanjeh S, Pirandola S, Vitali D, Fink JM.   +3 more
europepmc   +1 more source

Carbon Contacts to Proteins Enable Robust, Biocompatible Electronic Junctions with Near‐Activation‐less Conduction Down to 10 K

Advanced Functional Materials, EarlyView.
A robust solid‐state protein junction with a semi‐transparent eC/Au electrode allows photoexcitation of the bacterio‐rhodopsin, bR layer, to isomerize the bR retinal. The resulting photo‐response shows the protein is functional in the solid‐state junction.
Shailendra K. Saxena, Sudipta Bera, Tatyana Bendikov, Israel Pecht, Mordechai Sheves, David Cahen   +5 more
wiley   +1 more source

Quantum illumination advantage in quantum Doppler radar

A Doppler radar is a device that employs the Doppler effect to estimate the radial velocity of a moving target at a distance. Traditional radars are based on a classical description of the electromagnetic radiation, but in principle their performance can be improved employing entangled quantum probe states. For target detection, i.e. hypothesis testing,
Wei, Rongyu, Albarelli, Francesco, Li, Jun, Giovannetti, Vittorio   +3 more
openaire   +2 more sources

Efficient Charge Transport in Zero‐Dimensional Perovskite for Ultrahigh‐Sensitivity X‐Ray Detection

Advanced Functional Materials, EarlyView.
A novel mono‐octahedral 0D Bi‐based Dpy3Bi2I12 perovskite strengthens the internal hydrogen bonds and forms a quasi‐2D lattice, exhibits exceptional charge transport and mobility, achieving high X‐ray sensitivity and ultralow‐dose imaging, and setting a new benchmark for 0D detector performance.
Xin Song, Lijie Wang, Jiayi Wang, Yafeng Xu, Renqian Zhou, Shulin Chen, Partha Maity, Peng Yuan, Yongcao Zhang, Bingyao Shao, Jian‐Xin Wang, Jun Yin, Ren‐Wu Huang, Youyou Yuan, Taimoor Ahmad, Osman M. Bakr, Omar F. Mohammed   +16 more
wiley   +1 more source

Green Preparation of Stachys Eudenia-Derived Carbon Quantum Dots and Their Photocatalytic Applications

Düzce Üniversitesi Bilim ve Teknoloji Dergisi
In this present work, the composites were obtained from carbon quantum dots and TiOf via green synthesis and the photoactivities of these composite structures were investigated under ultraviolet light.
Gülşah Öztürk, Teoman Öztürk, Murat Yıldırım, Merve Turğut, Canan Başlak   +4 more
doaj   +1 more source