Results 71 to 80 of about 1,161 (162)

Exploration of Copper Halide Linear‐Array Detector Prototype for Security Checks

Small, EarlyView.
Mn‐doped Cs3Cu2I5 is demonstrated as a highly promising scintillator for X‐ray imaging, featuring high light yield, a low detection limit, and negligible afterglow. A linear‐array detector prototype based on the Mn‐doped Cs3Cu2I5 delivers a spatial resolution of 1.1 lp/mm in food‐safety and security inspections, marking a significant advance in the ...
Yang Zhou, Tengyue He, Wenyi Shao, Wentao Wu, Peng Yuan, Haijiao Xie, Osman M. Bakr, Omar F. Mohammed   +7 more
wiley   +1 more source

Synthesis, Structure, and Eu3+‐Activated Photoluminescence of the Mixed‐Anion Carbodiimide NaLa2F3(CN2)2

Zeitschrift für anorganische und allgemeine Chemie, Volume 652, Issue 4, 17 March 2026.
NaLa2F3(CN2)2 forms via solid‐state metathesis of LaF3 and Na2(CN2) at 550°C and remains stable under ambient air and humidity. The structure is based on [La(NCN)5F4] polyhedra with interstitial Na+; revealing an unconventional red emission when doped with Eu3+.
Albert T. Schwarz, Markus Ströbele, David Enseling, Thomas Jüstel, H.‐Jürgen Meyer   +4 more
wiley   +1 more source

Silicon Photomultipliers: Technology Optimizations for Ultraviolet, Visible and Near-Infrared Range

Instruments, 2019
Silicon photomultipliers (SiPMs) are single-photon sensitive solid-state detectors that are becoming popular for several applications, thanks to massive performance improvements over the last years. Starting as a replacement for the photomultiplier tube (
Fabio Acerbi, Giovanni Paternoster, Massimo Capasso, Marco Marcante, Alberto Mazzi, Veronica Regazzoni, Nicola Zorzi, Alberto Gola   +7 more
doaj   +1 more source

Defect Analysis of the β– to γ–Ga2O3 Phase Transition

Advanced Functional Materials, Volume 36, Issue 20, 9 March 2026.
The role of defects at all the relevant stages of the β$\beta$‐ to γ$\gamma$‐Ga2O3 polymorph transition is investigated using a multi method approach. The positron annihilation spectroscopy based results show that the defect density decreases after the transition, and that changes in defect configuration within the γ phase occur with increasing ...
Umutcan Bektas, Maciej O. Liedke, Huan Liu, Fabian Ganss, Maik Butterling, Nico Klingner, René Hübner, Ilja Makkonen, Andreas Wagner, Gregor Hlawacek   +9 more
wiley   +1 more source

Spectrally Resolved Single-Photon Timing of Silicon Photomultipliers for Time-Domain Diffuse Spectroscopy

IEEE Photonics Journal, 2015
We characterized the single-photon timing response function of various silicon photomultipliers (SiPMs) over a broad (500-1100 nm) spectral range. We selected two SiPM manufacturers, and we investigated two active areas, i.e., a small (1-1.69 mm2) and a ...
E. Martinenghi, A. Dalla Mora, D. Contini, A. Farina, F. Villa, A. Torricelli, A. Pifferi   +6 more
doaj   +1 more source

Fluorescent Polymeric Nanofibers as Ratiometric Multiplexed Skin Sensors of pH and Oxygen

Advanced Healthcare Materials, Volume 15, Issue 10, 13 March 2026.
Fluorescent polymeric nanofibers and nanorods are produced as ratiometric sensors of two important physiological parameters: pH and oxygen. They operate by dual Forster resonance energy transfer from large number of energy donor dyes to limited number of two distinct energy acceptors, enabling simultaneous sensing of pH and oxygen.
Rémi Pelletier, Anila Hoskere Ashoka, Andrey S. Klymchenko   +2 more
wiley   +1 more source

Light Concentrators for Silicon Photomultipliers

Physics Procedia, 2012
AbstractPhotosensitive devices represent a key solution for several current and future categories of experiments in which photon detection is the crucial point for the observation of physical phenomena. Astro particle experiments for instance, one of the most promising observation channels for High Energy Physics, typically study energetic phenomena in
Barbarino G., De Asmundis R., De Rosa G., Russo S., Vivolo D., Mollo C. M.   +5 more
openaire   +3 more sources

Highly Fluorescent and Stable Lead Halide Perovskite Nanocrystals Protected by an In Situ Formed Lead Halide–Amino Acid Matrix

Advanced Photonics Research, Volume 7, Issue 3, March 2026.
This work presents highly fluorescent and stable MAPbBr3 and FAPbBr3 perovskite nanocrystals prepared via a facile single‐step precipitation method. An in situ formed PbBr2­amino acid matrix encapsulates the nanocrystals, enabling near‐unity photoluminescence quantum yields and exceptional long‐term stability under ambient conditions.
Felix Mayr, Elisabeth Leeb, Katharina Matura, Munise Cobet, Thomas Rath, Marco Sigl, Yolanda Salinas, Dorian Ziss, Tena Markulin, Jakob Hofinger, Katarina Gugujonović, Bekele Hailegnaw, Oliver Brüggemann, Thomas A. Klar, Niyazi S. Sariciftci, Markus C. Scharber   +15 more
wiley   +1 more source

Wafer‐Scale Room‐Temperature Processing of Lead‐Free Perovskites for Optoelectronic Applications

Advanced Science, Volume 13, Issue 16, 18 March 2026.
We present the first wafer‐scale, room‐temperature synthesis of lead‐free Cs3Sb2X9 (X = Br, I) perovskite films via solvent‐free magnetron sputtering. The resulting high‐performance photodetectors achieve benchmark responsivity, bandwidth, and detectivity, enabling scalable manufacturing for next‐generation optoelectronics.
Rosanna Mastria, Hoi Tung Lam, Ioannis Leontis, Sara Bonomi, Mohammed Ali Saleh Alshehri, Aurora Rizzo, Pietro Galinetto, Maddalena Patrini, Ned Taylor, Steven P. Hepplestone, Monica F. Craciun, Lorenzo Malavasi, Saverio Russo   +12 more
wiley   +1 more source

Circularly Polarized Long‐Persistent and Photostimulated Luminescence Enabled through Förster Resonance Energy Transfer and Upconversion Strategies

Advanced Science, Volume 13, Issue 14, 9 March 2026.
Using chiral emitters with circularly polarized luminescence (CPL) characteristics integrated into organic long‐persistent luminescence (OLPL) system demonstrates circularly polarized long‐persistent luminescence (CP‐LPL). Importantly, the Förster resonance energy transfer (FRET)‐based design reveals circularly polarized photostimulated luminescence ...
Ruttapol Malatong, Rengo Yoshioka, Dmitry Kovalevskiy, Kentaro Takaji, Hajime Shigemitsu, Kaede Kawaguchi, Yemineni S. L. V. Narayana, Toshiyuki Kida, Ryota Kabe   +8 more
wiley   +1 more source