Results 201 to 210 of about 39,529 (311)

Mechanically‐Gated Stochastic Resonance for All‐Optical Acoustic Sensing in Noisy Environments

Advanced Science, EarlyView.
A mechanically‐gated stochastic resonance (MGSR) sensing system is demonstrated, wherein stochastic resonance is enabled by an all‐optical bistable fiber Bragg grating feedback loop and gated by mechanical resonance. Under ambient noise, the system generates bistable outputs satisfying the Kramers escape‐rate condition, yielding signal‐to‐noise ratio ...
Xuyu Zhang, Minzheng Sun, Cunzheng Fan, Shuolong Zhu, Qilin Hong, Pan Xu, Min Zhu, Zhengliang Hu, Yongchao Zou, Qizhen Sun   +9 more
wiley   +1 more source

Unipolar Barrier Near-Infrared 2D Photodetectors for 3D Image Sensors. [PDF]

Adv Sci (Weinh)
Hong JP, Kim SJ, Jang J, Lee JJ, Han SJ, Yeon E, Kim JW, Ahn J, Kim SY, Ko HW, Han S, Lee SA, Seo PH, Suh YW, Lee K, Wang G, Zheng DG, Hong S, Hahn S, Yoon SK, Park MC, Hwang DK.   +21 more
europepmc   +1 more source

Enhanced Synthesis of Cs2AgBiBr6 Single Crystals via Controlled Cooling for Enhanced Dual‐Band Light Detection

Advanced Electronic Materials, EarlyView.
This work presents a dual‐band photodetector based on the large‐scale, precise synthesis of Cs2AgBiBr6 single crystals. A rapid and efficient synthesis method is demonstrated, yielding high‐quality Cs2AgBiBr6 crystals with an average size of 2 × 2 × 1.5 mm3 and a production yield of 12.66%.
Yezhan Li, You Meng, Bowen Li, Jianbo Wu, Weijun Wang, Pengshan Xie, Yuxuan Zhang, Quan Quan, Qingfeng Zhou, Johnny C. Ho   +9 more
wiley   +1 more source

Modeling and Enhancing Responsivity for the InGaAsN/GaAs Configuration in p-i-n Photodiodes. [PDF]

Micromachines (Basel)
Hafi N, Aissat A, Hadjadj K, Dupont S, Saidi F, Dhaou MH, Vilcot JP.   +6 more
europepmc   +1 more source

Anion‐Cation Synergistic Passivation for High‐Performance FA‐Cs Halide Perovskite Photodetectors

Advanced Electronic Materials, EarlyView.
An anion‐cation synergistic passivation strategy is developed to improve perovskite photodetectors. Surface‐localized DMePDA2+ cations and bulk‐diffused Cl− anions simultaneously reduce defects, enhancing charge transport and suppressing recombination.
Hyeon‐Jong Shin, Kwang‐Ro Yun, Tae Joon Park, Tae‐Yeon Seong   +3 more
wiley   +1 more source

Ligand-Mediated Shape Engineering of SWIR InAs Colloidal Quantum Dots for Photodetector Applications. [PDF]

Adv Mater
Kim T, Oh JT, Wu H, Valverde MM, Mandal D, Konstantatos G.   +5 more
europepmc   +1 more source

Eco‐Friendly Laser‐Induced Graphene/Perovskite Hybrids for Eco‐Friendly Photodetectors

Advanced Electronic Materials, EarlyView.
A sustainable paper‐based photodetector was developed by combining laser‐induced graphene (LIG) with MAPbI3 perovskite. Compared with pure LIG devices, the hybrid photodetector exhibited nearly 10‐fold higher responsivity and 7‐fold greater detectivity while maintaining stable performance after 1000 bending cycles, demonstrating its potential for ...
Ya‐Yun Huang, Wei‐Hua Hsu, Bo‐Hua Chiou, Wei‐Chen Tu   +3 more
wiley   +1 more source

Graphene Photodetectors Toward Practical Technologies for Biosensing: Mechanisms, Architectures, Applications, and Integration Challenges. [PDF]

Biosensors (Basel)
Sun X, Su H, Zhu Z, Sang D, Zhang Z, Li H, Kumar S, Wang Q.   +7 more
europepmc   +1 more source

Atomic‐Scale Mechanisms of Anisotropic Thermal Decomposition in GeSn Alloys With Stepwise Pinning

Advanced Electronic Materials, EarlyView.
Combining in situ TEM with DFT calculations, this work elucidates atomic‐scale anisotropic thermal decomposition in GeSn films, identifying laminar receding in defect‐free regions and stepwise pinning at stacking faults. Driven by crystallographic anisotropy and defect‐mediated energetic penalties, these findings establish a physical framework for ...
YiXin Wang, Qi Liu, XiYan Chang, Chi Xu, Tao Wang, XinZheng Li, ChunLai Xue   +6 more
wiley   +1 more source