Results 51 to 60 of about 5,944,358 (312)

Optimization of an Operation Mode of the Solid-State Image Sensor in a Short-Wave Infrared Region

Известия высших учебных заведений России: Радиоэлектроника, 2017
Increase in quantum efficiency of silicon image sensor in the short-wave infrared range 900…1100 nm is shown theoretically and confirmed experimentally in case of temperature increase of a crystal.
D. A. Belous
doaj  

Features of model thin-film solar cells photoelectric characteristics based on a non-toxic multi-component connection CuZn2AlS4

Eurasian Journal of Physics and Functional Materials, 2021
In this paper, the features of the characteristics of model thin-film solar cells based on the non-toxic multicomponent compound CuZn2AlS4 (CZAS) are considered.
D. Sergeyev, K. Shunkeyev, B. Kuatov, N. Zhanturina   +3 more
doaj   +1 more source

Intramolecular Down‐ and Up‐Conversion in Dimeric Tetracene Complexes Centered via Platinum(II) and Palladium(II)

Advanced Functional Materials, EarlyView.
Metal‐tetracene dimeric complexes are synthesized through the pyridyl coordination to either Pt(II) or Pd(II). Photophysical properties are systematically compared as a function of the metal using steady‐state and time‐resolved spectroscopy. The Pt(II) dimer exhibits efficient intramolecular singlet fission and subsequent intramolecular up‐conversion ...
Yifan Bo, Yuxuan Hou, Melchor Matabuena, Rik R. Tykwinski, Dirk M. Guldi   +4 more
wiley   +1 more source

Quantum efficiency improvement of optical radiation trap-detectors

Semiconductor Physics, Quantum Electronics & Optoelectronics, 2019
The ways to increase the quantum efficiency of trap detectors of optical radiation have been discussed. Presented here has been a brief review of trap detectors, in which high quantum efficiency is ensured by their design.
D.N. Tatyanko
doaj   +1 more source

Perovskite Solar Cell with Added Gold/Silver Nanoparticles: Enhanced Optical and Electrical Characteristics

Energies, 2020
Different perovskite materials, such as methylammonium lead triiodide MAPbI3, exhibit many outstanding and desirable properties in solar energy harvesting.
Ali Hajjiah, Hussein Badran, Ishac Kandas, Nader Shehata   +3 more
doaj   +1 more source

Photoluminescence of the Eu³⁺-Activated Y_xLu_1−xNbO₄ (x = 0, 0.25, 0.5, 0.75, 1) Solid-Solution Phosphors

Crystals, 2022
Eu3+-doped YxLu1−xNbO4 (x = 0, 0.25, 0.5, 0.75, 1) were prepared by the solid-state reaction method. YNbO4:Eu3+ and LuNbO4:Eu3+ crystallize as beta-Fergusonite (SG no. 15) in 1–10 μm diameter particles.
Milica Sekulić, Tatjana Dramićanin, Aleksandar Ćirić, Ljubica Đačanin Far, Miroslav D. Dramićanin, Vesna Đorđević   +5 more
doaj   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

Nondestructive Evaluation of Multijunction Solar Cells for Matching Currents

IEEE Journal of the Electron Devices Society, 2019
Nondestructive methods determining current mismatched ratios (CMMRs) between key subcells in a multijunction solar cell were proposed in view of a compensated concept of subcell's current. Various compensated lights were employed to determine key CMMR of
Chia-Hua Huang, Hao Lo, Chieh Lo, Chia-Chieh Hsu, Wen-Shiung Lour   +4 more
doaj   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Radiometric and noise characteristics of InAs-rich T2SL MWIR pin photodiodes [PDF]

Journal of the European Optical Society-Rapid Publications, 2014
We present a full characterization of the radiometric performances of a type-II InAs/GaSb superlattice pin photodiode operating in the mid-wavelength infrared domain. We first focused our attention on quantum efficiency, responsivity and angular response
Giard E., Taalat R., Delmas M., Rodriguez J.-B., Christol P., Ribet-Mohamed I.   +5 more
doaj   +1 more source