Results 71 to 80 of about 5,255,782 (210)

Photon-Detection-Probability Simulation Method for CMOS Single-Photon Avalanche Diodes

Sensors, 2020
Single-photon avalanche diodes (SPADs) in complementary metal-oxide-semiconductor (CMOS) technology have excellent timing resolution and are capable to detect single photons. The most important indicator for its sensitivity, photon-detection probability (
Chin-An Hsieh, Chia-Ming Tsai, Bing-Yue Tsui, Bo-Jen Hsiao, Sheng-Di Lin   +4 more
doaj   +1 more source

Integration of Refractive Microlenses on BP/MoS2 Photodiodes for Enhanced Infrared Photodetection

Small, EarlyView.
This study demonstrates the successful integration of black phosphorus/molybdenum disulfide infrared photodetectors with refractive microlenses to significantly enhance detection. The design achieves a 20‐fold photocurrent enhancement, enabling a room‐temperature detectivity of 1.83 × 109 cmHz1/2W−1, and demonstrates high‐resolution (1023 × 768) single‐
Varsha Ashwin Vedaraj, Daniel Fan, Jinyuan Chen, Seyed Saleh Mousavi Khaleghi, Luke Philpott, Yuchen Sun, Shifan Wang, Shi Tang, Robert Delaney, Alexander Corletto, Kenneth B. Crozier, James Bullock   +11 more
wiley   +1 more source

Fuzzy logic based temperature control of thermoelectric cooler (TEC) for single photon avalanche diode (SPAD) application [PDF]

, 2011
Single photon avalanche diode (SPAD) is a temperature sensitive device. Even a slight variation of temperature can cause unstable performance in quantum efficiency, responsitivity and dark counts.
Hasbullah, Nurul Fadzlin, Samsuddin, Nurul Izzati, Ahmad, Salmiah   +2 more
core  

Geiger Mode Ge-on-Si Single-Photon Avalanche Diode Detectors [PDF]

, 2019
Ge-on-Si single-photon avalanche diode (SPAD) detectors have demonstrated a high single-photon detection efficiency of 38% at a wavelength of 1310 nm when operated at a temperature of 125 K.
Kuzmenko, Kateryna, Greener, Zoe M., Ross W. Millar, Dumas, Derek C. S., Zoe Greener, Peter Vines, Derek C. S. Dumas, Douglas J. Paul, Kirdoda, Jaroslaw, Paul, Douglas J., Kateryna Kuzmenko, Mirza, Muhammad M., Jaroslaw Kirdoda, Vines, Peter, Greener, Zoe, Buller, Gerald S., Dumas, Derek C.S., Zoe M. Greener, Muhammad M. Mirza, Millar, Ross W., Gerald S. Buller   +20 more
core   +1 more source

Anomalous Sub‐Band Gap Emission at Room Temperature in Mixed‐Dimensional WS2/Cu2O Heterostructures

Small, EarlyView.
Monolayer WS2 on Cu2O produces a room‐temperature sub‐bandgap emission from the hybrid interface. Spectroscopy and electrical bias measurements indicate that this emission arises primarily from WS2‐modified Cu2O defect states rather than interlayer excitons.
Osamah Kharsah, Jonah von Kuczkowski, Ahmed Shahin, Rouaa Albalkhi, Aya Al‐Amwi, Ibrahim Titi, Yossarian Liebsch, Oliver Altenhoff, Ulrich Hagemann, Anke Hierzenberger, Kevin Musselman, Marika Schleberger   +11 more
wiley   +1 more source

Ag‐Induced Phase and Defect Engineering of Co‐Evaporated Sb2Se3 Thin Films for Enhanced Photovoltaic Performance

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 6, November 2026.
The sequential formation of Ag2Se and AgSbSe2 phases at the Sb2Se3/Mo interface upon Ag incorporation in co‐evaporated Sb2Se3 solar cells promotes grain growth and defect passivation. These newly formed intermediate phases enhance crystallinity and suppress recombination, leading to significant improvements in open‐circuit voltage, fill factor, and ...
Van‐Quy Hoang, Jaebaek Lee, Bashiru Kadiri‐English, Eunkyung Cho, Amanat Ali, Naveen Kumar, Evgeniia Gilshtein, Stela Canulescu, Dae‐Ho Son, Hyesun Yoo, Vo Pham Hoang Huy, Quynh Le‐Van, Dae‐Kue Hwang, Jin‐Kyu Kang, Kee‐Jeong Yang, Shi‐Joon Sung, Dae‐Hwan Kim   +16 more
wiley   +1 more source

Quenching Statistics of Silicon Single Photon Avalanche Diodes

, 2021
The statistical behavior of silicon-based single-photon-avalanche-diodes (SPADs) is investigated by using self-consistent 3-D Monte Carlo simulations.
Rideau, Denis, Dollfus, P, Saint-Martin, Jerome, Dollfus, Philippe, Pala, M, Grebot, Jeremy, Helleboid, R, Grebot, J, Saint-Martin, J, Helleboid, Remi, Cazimajou, T, Pala, Marco G., Rideau, D, Cazimajou, Thibauld   +13 more
core   +1 more source

Single-Photon Computational Imaging System Based on Multi-Pixel Photon Counter

Photonics
Existing single-photon computational imaging systems always combine single-photon avalanche diode (SPAD)/photomultiplier tube (PMT) and time-correlated single-photon counting (TCSPC) together to collect the signals for imaging.
Rui Sun, Jiaye Kuang, Yi Ding, Jingjing Cheng, Jibin Zhang, Yadong Wang, Ryszard Buczynski, Wenzhong Liu   +7 more
doaj   +1 more source

Integration of hBN Single‐Photon Emitters Into a Hybrid Optomechanical Membrane‐In‐The‐Middle Fiber‐Cavity

Nanophotonics, Volume 15, Issue 19, 13 October 2026.
Deterministic manipulation of hexagonal boron nitride (hBN) flakes enables single‐photon emitters (SPEs) to be integrated into a fiber‐based Fabry–Pérot membrane‐in‐the‐middle cavity. Cavity coupling enhances and spectrally funnels the broadband emitter fluorescence, while allowing access to mechanical membrane modes for future hybrid optomechanical ...
P. Maier, A. Kubanek
wiley   +1 more source

Twenty Years of Rad-Hard K14 SPAD in Space Projects

Sensors, 2015
During last two decades, several photon counting detectors have been developed in our laboratory. One of the most promising detector coming from our group silicon K14 Single Photon Avalanche Diode (SPAD) is presented with its valuable features and space ...
Vojtěch Michálek, Ivan Procházka, Josef Blažej   +2 more
doaj   +1 more source