Results 81 to 90 of about 3,090 (200)

High‐Performance UV Photodetectors Based on ZnO Hierarchical Nanostructures Grown on Aerosol‐Printed 3D Ag Mesh

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
First integration of ZnO nanorods with aerosol‐printed 3D Ag meshes for UV photodetector. 3D Ag/ZnO enhances light absorption and charge separation by providing a large active surface area for efficient charge generation and a strong UV response.
Elius Hossain   +3 more
wiley   +1 more source

Dual Operating Mode Imaging Photodetector Based on Electrical Modulation of p‐Si/MgO/ZnO

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This research innovatively introduces the MgO barrier layer and utilizes the device structure advantages of MSM to achieve breakthrough dual‐band response output of p‐Si/MgO/ZnO photodetectors under bias modulation. It has been successfully applied in dual‐mode imaging, laying the foundation for the development of third‐generation imaging technology ...
Hepeng Zhao   +4 more
wiley   +1 more source

Author Correction: Solution-processed hybrid perovskite photodetectors with high detectivity

open access: yesNature Communications, 2019
This Article contains an error in Equation 2 in that the denominator is inverted. This has not been fixed in the PDF or HTML versions of the Article but can be seen in the associated Correction.
Letian Dou   +6 more
doaj   +1 more source

Transient Charging Dynamics in Stacked Ga2O3/ZnO Photovoltaic Units Governing Wavelength‐Selective Polarity Switching

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This work reveals a “Photovoltaic‐Capacitance” coupling mechanism in stacked Ga2O3/ZnO devices, defining the ZnO/graphene interface as a novel Photovoltaic Dynamic‐Capacitor (PDC). The wavelength‐selective bipolar response enables a physical layer secure communication protocol based on ternary optical logic (“1,” “0,” “−1”).
Songqi Zhao   +6 more
wiley   +1 more source

Gas–Solid Interface‐Assisted Growth of Organic Semiconductor Single Crystals: Dimensions, Structures, Mechanisms, and Applications

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Gas–solid interface‐assisted growth strategies have unlocked precise control over crystal structure, morphology, dimension, and molecular packing. The obtained organic semiconductor single crystals represent the ideal candidates for high‐performance organic optoelectronic devices.
Tingyi Yan   +8 more
wiley   +1 more source

Influence of doping concentration on the main parameters of CdSe:Cu photoconductor detector

open access: yesIraqi Journal of Physics, 2011
The photonconductor detectors CdSe:Cu was fabricated as a thin film of (1 μm) in thickness using vacuum evaporation technique. doping with copper was made using vacuum annealing at 350oC under argon atmosphere .
S. K.J. Al-Ani
doaj  

Ferroelectric‐Enhanced Self‐Driven Solar‐Blind Photodetector in the GaN‐In2Se3 p‐n Junction

open access: yesInformation & Functional Materials
Solar‐blind ultraviolet (SBUV) photodetectors have significant applications in fields such as missile warning and fire detection, due to their extremely low background noise. However, the SBUV photodetectors still face problems such as slow speed and low
Jiaxing Jiang   +9 more
doaj   +1 more source

ZnO Nanowires by Chemical Bath Deposition: A Review on Doping and Functional Devices

open access: yesElectron, EarlyView.
This review reports the most recent and well‐established state‐of‐the‐art and scientific challenges related to the doping of ZnO nanowires by chemical bath deposition, encompassing native point and hydrogen‐related defects, as well as extrinsic dopants.
Clément Lausecker   +3 more
wiley   +1 more source

Organic Photodetectors and Sensors for Low‐Light and Infrared Applications

open access: yesElectron, EarlyView.
This mini review highlights recent advances in organic photodetectors and sensors for low‐light and infrared applications, emphasizing molecular design, device architectures, and interface engineering that improve charge transport, detectivity, speed, and spectral selectivity.
Swarup Biswas, Hyeok Kim
wiley   +1 more source

Ultra-weak infrared light detection based on steep-slope phototransistors

open access: yesNature Communications
A photodetector’s sensitivity is conventionally quantified by specific detectivity, which balances responsivity and noise. However, we reveal that the turn-on threshold power is fundamentally governed by photo-carrier injection rather than detectivity ...
Jiadong Mei   +3 more
doaj   +1 more source

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