Results 41 to 50 of about 1,161 (162)

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

Time and charge characterization of Hamamatsu Photonics silicon photomultipliers

EPJ Web of Conferences, 2014
Two Hamamatsu Photonics silicon photomultipliers (SiPM) with same cell size 50×50 µm2 and different sensitive area (1×1 mm2 vs. 3×3 mm2) have been characterized in charge and time by means of a 409 nm pico-laser.
Galetta G., Ciciriello F., Corsi F., De Leo R., Garibaldi F., Lagamba L., Licciulli F., Loddo F., Marzocca C., Nappi E., Perrino R., Ranieri A.   +11 more
doaj   +1 more source

Single Photon Counting with Silicon Photomultipliers, shortening systems and incoherent illumination [PDF]

Journal of the European Optical Society-Rapid Publications, 2012
In this work it is shown the benefit of using pulse shortening systems for conforming photodetection pulses provided by Silicon Photomultipliers (SiPMs).
Yebras J. M., Antoranz P., Miranda J. M.
doaj   +1 more source

Silicon Photomultipliers: Characterization and Applications

, 2012
Silicon Photo-Multipliers (SiPMs henceover) are photo-detectors based on a technology originally invented in Russia (Akindinov et al., 1997). They essentially consist of an array of p-n junctions operated beyond the breakdown voltage (McKay, 1954), in a Geiger-Muller (G-M) regime (Oldham et al., 1972), with typical gain of the order of 106 and on-cell ...
Ramilli, M, Allevi, A, NARDO, LUCA, Bondani, M, Caccia, M.   +4 more
openaire   +4 more sources

Furan‐Substituted Phosphine‐Oxide as an Efficient Interfacial Modifier for Wide‐Bandgap Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
We report phosphine‐oxide interlayers for wide‐bandgap perovskite solar cells, in which tuned P = O Lewis basicity enables selective passivation of buried NiOx/perovskite interfaces and introduces interfacial dipoles that strengthen the built‐in field.
JeeHee Hong, Juan Anthony Prayogo, Soobin Heo, Jae Sung Yun, Dong Ryeol Whang, Dong Wook Chang, Hui Joon Park   +6 more
wiley   +1 more source

Sb-Doped Substrates for Low-Noise Silicon Photomultipliers

IEEE Journal of the Electron Devices Society
Suppressing dark noise in silicon photomultipliers (SiPMs) remains highly challenging because Geiger-mode operation inherently leads to high dark count rates (DCR).
Shifeng Zhang, Jiangteng Xia, Yanling Ren, Fudexuan Huang, Jiacheng Lai, Ming Zhang, Anqi Hu, Xia Guo   +7 more
doaj   +1 more source

A Mechanistic Blueprint for Fast, High‐Yield Green Scintillators Using Conjugated Polymer–Nanocrystal Composites

Advanced Functional Materials, EarlyView.
Conjugated polymer–nanocrystal composites are investigated to develop fast, high‐yield green scintillators. The polymer F8BT enables efficient, ultrafast emission, while blends with non‐emitting HfO2 nanocrystals and luminescent CdZnS/ZnS quantum dots reveal distinct sensitization mechanisms.
Chenger Wang, Emanuele Mazzola, Andrea Fratelli, Matteo L. Zaffalon, Francesco Bruni, Francesco Carulli, Xiaohe Zhou, Saptarshi Chakraborty, Leonardo Poletti, Luca Cappelletti, Francesco Meinardi, Francesca Rossi, Luca Gironi, Sergio Brovelli   +13 more
wiley   +1 more source

Improving the Accuracy of TOF LiDAR Based on Balanced Detection Method

Sensors, 2023
The ranging accuracy of pulsed time-of-flight (TOF) lidar is affected by walk error and jitter error. To solve the issue, the balanced detection method (BDM) based on fiber delay optic lines (FDOL) is proposed.
Jingjing Li, Ying Bi, Kun Li, Lingyi Wu, Jie Cao, Qun Hao   +5 more
doaj   +1 more source

Critical Role of Polymer Gate Dielectrics on the Charge Carrier Transport in Perovskite Field‐Effect Transistors

Advanced Functional Materials, EarlyView.
Charge transport in 2D tin perovskite FETs is shown to be governed by dielectric interface behavior. Polar polymer dielectrics induce dipolar disorder that localizes carriers, whereas nonpolar polymers suppress trapping and enable superior charge transport, ensuring stable and reliable transistor operation. ABSTRACT Understanding the role of interfaces
Chongyao Li, Zhitian Ling, Pawel Czulkin, Paul W. M. Blom, Wojciech Pisula, Tomasz Marszalek   +5 more
wiley   +1 more source

Use of Silicon Photomultipliers in the Detectors of the JEM-EUSO Program

Instruments, 2023
The JEM-EUSO program aims to study ultra-high energy cosmic rays from space. To achieve this goal, it has realized a series of experiments installed on the ground (EUSO-TA), various on stratospheric balloons (with the most recent one EUSO-SPB2), and ...
Francesca Bisconti
doaj   +1 more source