Results 1 to 10 of about 12,890 (250)

PbS colloidal quantum dots imagers: From single devices to arrays, flexible platforms, and CMOS‐integrated systems

FlexMat, EarlyView.
Abstract Imagers operating in the visible to near‐infrared (NIR) range play an important role in applications such as industrial sorting, security surveillance, and autonomous driving. However, conventional imaging technologies based on silicon and III–V semiconductors suffer from several limits, including restricted spectral range, high fabrication ...
Xin Hong, Songdi Zhang, Runtian Han, Peng Wang, Wenjie Deng   +4 more
wiley   +1 more source

TEM studies of structural defects in HgTe/HgCdTe quantum wells [PDF]

, 2020
Bright-field and high-resolution transmission electron microscopy and microdiffraction have been used for the study of defects in two HgTe/HgCdTe single quantum well (QW) structures grown by molecular beam epitaxy on GaAs substrates with ZnTe and CdTe ...
Morgiel, Y., Voytsekhovskiy, Alexander V., Varavin, Vasilii S., Izhnin, Igor I., Fitsych, Olena I., Yakushev, Maxim V., Mikhailov, Nikolay N., Korotaev, A. G., Mynbaev, Karim D., Bonchyk, A. Yu., Świątek, Zbigniew, Savytskyy, Hrygory V., Dvoretsky, Sergei A.   +12 more
core   +1 more source

Overcoming spectral limits of perovskite photodetectors for the infrared region

InfoScience, EarlyView.
Infrared (IR) photodetectors are vital for modern optoelectronics, but traditional inorganic semiconductors face limitations in cost, processing, and bandgap tunability. This review provides a summary of advanced strategies to extend metal halide perovskites into the IR region, categorizing approaches into intrinsic material engineering, physical ...
Jiean Li, Bobo Li, Mingxia Qiu, Wang Zhang, Xuan Fang   +4 more
wiley   +1 more source

Kinetic Study on the Reaction of Phenylperoxy Radicals With Nitric Oxide

International Journal of Chemical Kinetics, EarlyView.
ABSTRACT Cavity ring‐down spectroscopy (CRDS) and quantum cascade laser absorption spectroscopy (QCLAS), in conjunction with pulsed laser photolysis, were employed to investigate the reaction between phenylperoxy radicals (C6H5O2) and nitric oxide (NO) at a temperature of 296 ± 4 K. The experiment was carried out under N2 as bath gas.
Maya Matsushita, Michiya Fujita, Kenichi Tonokura   +2 more
wiley   +1 more source

Status of LWIR HgCdTe infrared detector technology [PDF]

, 1990
The performance requirements that today's advanced Long Wavelength Infrared (LWIR) focal plane arrays place on the HgCdTe photovoltaic detector array are summarized.
Reine, M. B.
core  

Tunable, High Pulse Energy and Narrow Linewidth Gas‐Filled Fiber Laser Across Near‐ and Mid‐Infrared

Laser &Photonics Reviews, EarlyView.
A cascaded gas‐filled anti‐resonant hollow‐core fiber architecture enables broadly tunable infrared Raman lasers spanning ∼1.4–4.6 µm while maintaining microjoule‐level pulse energies and gigahertz‐level linewidths. The approach combines a wavelength‐tunable pump laser with optimized Raman frequency conversion, providing a compact route to high ...
Yazhou Wang, Marcello Meneghetti, Manoj K. Dasa, Timothy Bate, J. E. Antonio‐Lopez, Ian A. Davidson, Qiang Fu, Jaroslaw Rzegocki, Gregory T. Jasion, Francesco Poletti, Rodrigo Amezcua‐Correa, Christos Markos   +11 more
wiley   +1 more source

HgCdTe Surface Cleanup and Etch Using a Remote Hydrogen Plasma

, 1994
Dry passivation of HgCdTe with ZnS or CdTe using physical or chemical vapor deposition can be improved by incorporating an in situ plasma cleanup of the HgCdTe surface prior to the deposition.
Patricia B. Smith
core   +1 more source

Molecularly Mediated Assembly of Metal Nanoparticles With Multifunctional Interfaces for Selective Detection of Small Gas Molecules

Small, EarlyView.
This work demonstrates a conceptual framework of three types of cooperative interaction pathways in molecularly assembled nanoparticle chemiresistors. Their relative contributions depend on nanoparticle composition, linker chemistry, film architecture, and analyte identity, modulating the effective tunneling barrier (Φ), interparticle spacing (d), and ...
Han‐Wen Cheng, Jin Luo, Xiajing Shi, Guojun Shang, Dong Dinh, Lidia Gebre, Zeqi Li, Seyed Danial Mousavi, Zakiya Skeete, Ke Pei, Wenbin You, Susan Lu, Tony T. Yuan, Chuan‐Jian Zhong   +13 more
wiley   +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

Room‐Temperature, Flexible MnBi2Te4/As2Te3 Thin‐Film Heterojunction Array Photodetectors

Advanced Photonics Research, Volume 7, Issue 9, September 2026.
This study presents a room‐temperature, flexible MnBi2Te4/As2Te3 thin‐film heterojunction array photodetector fabricated via cost‐effective thermal evaporation. The device exhibits a broadband photoresponse from 450 to 1550 nm, with an ultrafast response time of less than 80 μs, a maximum responsivity (Ri) of 47.5 mA W−1, and a specific detectivity (D*)
Ming Yang, Wenze Deng, Qiqin Li, Haoliang Chang, Fei Li, Hongxi Zhou, Xijun Liu, Xinyu Zhu   +7 more
wiley   +1 more source