Results 111 to 120 of about 272,034 (235)

Synthesis of Core–Shell Te@Se Quantum Dots and Their Broadband Photodetector Performance in Low Concentration Electrolytes

Laser &Photonics Reviews, EarlyView.
Te@Se core–shell heterojunction quantum dots (QDs) are synthesized by a two‐step strategy via combining liquid‐phase exfoliation and epitaxial growth. As active materials in photoelectrochemical photodetectors, Te@Se QDs exhibit excellent photo‐response performance in low‐concentration electrolytes and deionized water.
Yiming Zhao, Artem V. Kuklin, Jiahui Hou, Mingqi He, Lyudmila V. Begunovich, Han Zhang, Ying Li, Hans Ågren, Lingfeng Gao   +8 more
wiley   +1 more source

Enhanced Broadband Photodetection with Geometry and Interface Engineered Nanocrystalline Graphite

Advanced Sensor Research
Photodetection across the near‐infrared (NIR) to short‐wavelength infrared (SWIR) spectrum is important for many applications. This study explores photodetection using nanocrystalline graphite (NCG) in a suspended, narrow constriction configuration for ...
Devang Parmar, Simone Dehm, Naga Anirudh Peyyety, Sandeep Kumar, Ralph Krupke   +4 more
doaj   +1 more source

Topological Photonic Devices and Circuits at Terahertz Frequencies

Laser &Photonics Reviews, EarlyView.
This review examines how 3D topological insulators and emerging topological photonic phases enable robust, low‐loss and defect‐immune terahertz devices. Fundamental properties, device implementations and topological transport mechanisms are surveyed, revealing new opportunities for reconfigurable, high‐performance THz components and scalable ...
Samane Kalhor, Srabani Kar, Ranjan Singh, Kaveh Delfanazari   +3 more
wiley   +1 more source

Multilayer WS2 for low-power visible and near-infrared phototransistors

Discover Nano
Mechanically exfoliated multilayer WS2 flakes are used as the channel of field effect transistors for low-power photodetection in the visible and near-infrared (NIR) spectral range. The electrical characterization as a function of the temperature reveals
Aniello Pelella, Kimberly Intonti, Ofelia Durante, Arun Kumar, Loredana Viscardi, Sebastiano De Stefano, Paola Romano, Filippo Giubileo, Hazel Neill, Vilas Patil, Lida Ansari, Brendan Roycroft, Paul K. Hurley, Farzan Gity, Antonio Di Bartolomeo   +14 more
doaj   +1 more source

Chemically‐Linked Heterostructures of Palladium Nanosheets and 2H‐MoS2

Small, EarlyView.
The photoresponse of MoS2 devices is extended to the near‐infrared region (up to 1700 nm) through chemical connection to Pd nanosheets (PdNS). A maleimide is used for covalent connection to MoS2, and a phenyl bromide moiety for linkage to the PdNS. In the absence of the chemical linker, van der Waals heterostructures show poorer enhancement of the ...
Ramiro Quirós‐Ovies, Pablo Bastante, Simon Hettler, Víctor Vega‐Mayoral, Sergio Aina, Vasileios Balos, Thomas Pucher, Andrés Castellanos‐Gomez, Raul Arenal, Juan Cabanillas‐Gonzalez, Emilio M. Pérez, Jesús Santamaría, Víctor Sebastian   +12 more
wiley   +1 more source

Mie-mediated edge-enhanced Raman scattering of vertically-stacking ge quantum-dots/Si-SiN array for enhancing photoluminescence and photodetection

Scientific Reports
We reported vertically-stacking architecture of Si-Si3N4 embedded Ge quantum dots (QDs) array for quantum nanophotonics. Salient features of ordered, stacking Ge QDs lie in good control over the QD size, spherical-shape, and spatial location without ...
Shih-Hsiang Yang, Maria Isabel Alonso, Horng-Chih Lin, Pei-Wen Li   +3 more
doaj   +1 more source

Laser‐Direct Printed 2D Material‐Based Heterostructure for the Fabrication of Electronic Devices

Small, EarlyView.
The Digital Laser‐Induced Forward Transfer (LIFT) approach is employed to pattern and stack 2D materials with micrometer‐scale precision. PdSe2 and MoSe2 are assembled into vertical p–n junctions, with graphene serving as a transparent electrode. The resulting laser‐transferred heterostructures exhibit high material quality and stable rectifying ...
Ilias Cheliotis, Filimon Zacharatos, Avraham Twitto, Michal Poplinger, Adi Levi, Amaia Pesquera, Amaia Zurutuza, Iakovos Kritikos, Stefania Skorda, Alexandros El Sachat, Yuri Mikhlin, Doron Naveh, Ioanna Zergioti   +12 more
wiley   +1 more source

Colloidal Quasi‐2D Cs2AgBiBr6 Double Perovskite Nanosheets: Synthesis and Application as High‐Performance Photodetectors

Small, EarlyView.
Layered quasi‐2D Cs2AgBiBr6 nanosheets, with large lateral dimensions of up to 1.4 µm, which are only a few nanometers thick, were synthesized as a result of systematic investigation of the roles of ligands and reaction temperature. The nanosheets were used to develop high‐performance photodetectors, yielding detectivity in the order of 1012 Jones with
Pannan I. Kyesmen, Eugen Klein, Brindhu Malani S, Rostyslav Lesyuk, Christian Klinke   +4 more
wiley   +1 more source

Advances in Micro‐Transfer Printing of Lithium Niobate Thin‐Films for Silicon Photonic Devices

Nanophotonics, Volume 15, Issue 6, 27 March 2026.
ABSTRACT Silicon and silicon nitride waveguide platforms have established themselves as ideal candidates for high‐volume photonic integration, owing to their compatibility with mature semiconductor manufacturing processes. In parallel, lithium niobate has garnered significant attention for its superior electro‐optic and nonlinear properties ...
Margot Niels, Tom Vandekerckhove, Lisa De Jaeger, Maximilien Billet, Bart Kuyken   +4 more
wiley   +1 more source

Removing Homocoupling Defects in Alkoxy/Alkyl‐PBTTT Enhances Polymer:Fullerene Co‐Crystal Formation and Stability

Advanced Functional Materials, Volume 36, Issue 20, 9 March 2026.
PBTTT‐OR‐R, a C14‐alkoxy/alkyl‐PBTTT polymer derivative, is of substantial interest for optoelectronics due to its specific fullerene intercalation behavior and enhanced charge‐transfer absorption. Comparing this polymer with (S) and without (O) homocoupling defects reveals that PBTTT‐OR‐R(O) forms stable co‐crystals with PC61BM, while PBTTT‐OR‐R(S ...
Zhen Liu, Jochen Vanderspikken, Paola Mantegazza, Stefania Moro, Mouna Hamid, Sigurd Mertens, Niko Van den Brande, Laurence Lutsen, Vincent Lemaur, David Beljonne, Giovanni Costantini, Koen Vandewal, Bruno Van Mele, Wouter Maes, Bart Goderis   +14 more
wiley   +1 more source