Results 61 to 70 of about 40,965 (256)

Opaiţe plastice descoperite la Durostorum–Ostrov (Ferma 4) [PDF]

open access: yesPeuce, 2017
The Lower Danube Museum of Călărași houses over 1400 Roman lamps, most of them discovered by the author of this paper during field research and preventive or systematic excavations made within the territory of the civil settlement of Durostorum (Ostrov ...
Dan ELEFTERESCU
doaj  

A Group of Bronze Lamps from Demre Museum [PDF]

open access: yesPhaselis: Disiplinlerarası Akdeniz Araştırmaları Dergisi
: This study examines 12 copper alloy oil lamps in Demre Museum, which were identified as bronze due to the lack of chemical analysis. Three of the oil lamps (Cat. No. 1, Cat. No. 4 and Cat. No.
Ünal Demirer
doaj   +1 more source

The Role of Ultra‐Thin Buffer Layers for Achieving Ultra‐Low Dark Currents in Single‐Component Organic Photodetectors

open access: yesAdvanced Functional Materials, EarlyView.
Here, SubNc single‐component organic photodiodes (SC‐OPDs) are investigated, which achieve highly competitive performance metrics, including high EQE, ultra‐low JD, and high specific detectivity (D*). This study emphasizes the critical role of an organic buffer layer in studying the interface energetics and effects to achieve state‐of‐the‐art ...
Anncharlott Kusber   +12 more
wiley   +1 more source

Metachromatic Butterfly Bile Pigments for Multi‐Level Optical Security Films

open access: yesAdvanced Functional Materials, EarlyView.
Bio‐derived optical security materials are manufactured by embedding butterfly‐based pigments in polymer films. Tunable color and fluorescence responses arise from concentration‐controlled metachromasy, enabling spatially encoded patterns with distinct visible, UV‐active, and spectral signatures.
Limin Wang, Bodo D. Wilts
wiley   +1 more source

Furan‐Substituted Phosphine‐Oxide as an Efficient Interfacial Modifier for Wide‐Bandgap Perovskite Solar Cells

open access: yesAdvanced Functional Materials, EarlyView.
We report phosphine‐oxide interlayers for wide‐bandgap perovskite solar cells, in which tuned P = O Lewis basicity enables selective passivation of buried NiOx/perovskite interfaces and introduces interfacial dipoles that strengthen the built‐in field.
JeeHee Hong   +6 more
wiley   +1 more source

Built‐In Interfacial Electric Field in Hydroxyl‐Terminated MXene/COF Heterostructures for Enhanced Solid‐State Supercapacitors

open access: yesAdvanced Functional Materials, EarlyView.
Hydroxyl‐terminated MXene is integrated with a redox‐active covalent organic framework through electrostatic self‐assembly followed by hydrothermal treatment to construct MXene/COF heterostructures with a built‐in interfacial electric field. Termination‐controlled interfacial electronic modulation induces charge redistribution and favorable band ...
Cheru Fekadu Molla   +4 more
wiley   +1 more source

Harmonics Monitoring Survey on LED Lamps

open access: yesRenewable Energy and Sustainable Development, 2017
Light Emitting Diode (LED) lamps are being increasingly used in many applications. These LED lamps operate using a driver, which is a switching device. Hence, LED lamps will be a source of harmonics in the power system.
Abdelrahman Ahmed Akila   +2 more
doaj   +1 more source

A Universal Interfacial Dipole Strategy for Defect Suppression in Inverted Perovskite Solar Cells With Tunable Bandgaps

open access: yesAdvanced Functional Materials, EarlyView.
A 2D heterointerface with a two‐site anchor bridge suppresses nonradiative recombination at the perovskite/C₆₀ interface by reducing surface defects, elevating the Fermi level, and strengthening the electric field. This strategy enables efficient electron extraction, delivering 26.32% efficiency, 1.217 V Voc, excellent operational stability, and broad ...
Chaohui Li   +27 more
wiley   +1 more source

AN[D]esign

open access: yesAnd, 2012
The novelty of the Digga and Annika pendant lamps - both designed by designer Khairul Hussin of the Creativeans group, based in Singapore and Milan - lies in the fact that they are inspired by traditional aviaries, using their structure as the main body
Federica Capoduri
doaj  

Tipologia ştampilelor de lămpi (Firmalampen) descoperite la Durostorum–Ostrov (Ferma 4) [PDF]

open access: yesPeuce, 2016
The Lower Danube Museum of Calarași stores over 1,400 Roman lucerna oil lamps, most of them found by the author of this paper during surveys at the civilian settlement of Durostorum (Ostrov-Farm 4).
Dan ELEFTERESCU
doaj  

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