Results 81 to 90 of about 78,935 (310)

The role of photonics in energy [PDF]

open access: yes, 2015
A.F.N. acknowledges support from the Fundação de Amparo a Pesquisa no Estado de São Paulo (FAPESP) and the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) of Brazil. D.O’C. acknowledges support from the U.S.
O'Carroll, D.M.   +10 more
core   +1 more source

Solar Simulator on the Basis of Powerful Light-Emitting Diodes

open access: yesMATEC Web of Conferences, 2018
The Article describes the construction design and experimental results of the Solar Simulator, based on powerful LEDs with different radiation spectrum.
Aldoshina Oxana   +4 more
doaj   +1 more source

Crystal Growth Engineering for Dendrite‐Free Zinc Metal Plating

open access: yesAdvanced Materials, EarlyView.
This research employed the rare‐earth ion dysprosium (Dy) to modulate aqueous zinc (Zn) metal plating. Integrated multiscale experiments and computational modeling unveiled the preferential adsorption of Dy on specific crystal facets, which activated screw dislocation‐driven Zn growth.
Guifang Zeng   +10 more
wiley   +1 more source

Targeted elimination of tetravalent-Sn-induced defects for enhanced efficiency and stability in lead-free NIR-II perovskite LEDs

open access: yesNature Communications
Eco-friendly Sn-based perovskites show significant potential for high-performance second near-infrared window light-emitting diodes (900 nm – 1700 nm).
Xiang Guan   +15 more
doaj   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

Light-emission from conjugated dendrimers and polymers [PDF]

open access: yes, 1999
This thesis reports the photophysical and electroluminescence studies undertaken on two types of material: polymeric and dendritic. The dendritic architecture is a recent concept adopted to develop new materials for light-emitting diodes.
Halim, Mounir, Halim, M.
core  

Directional Flow of Confined Polaritons in CrSBr

open access: yesAdvanced Materials, EarlyView.
CrSBr, a layered magnetic semiconductor, naturally channels self‐hybridized excitonpolaritons into highly directional flow. Its intrinsic optical anisotropy, high refractive index, and strong lightmatter coupling enable long‐range guided modes along the a‐axis, with propagation lengths set by their excitonphoton admixture.
Pratap Chandra Adak   +10 more
wiley   +1 more source

Manufacturing flexible light-emitting polymer displays with conductive lithographic film technology

open access: yes, 2001
We report on a new low-cost manufacturing process for flexible displays that has the potential to rapidly expand the market into areas that have traditionally been outside the scope of such technology.
Kilitziraki, M   +3 more
core   +1 more source

The formation of perovskite multiple quantum well structures for high performance light-emitting diodes

open access: yesnpj Flexible Electronics, 2018
Perovskite LEDs: annealing nails it Simple thermal annealing up to 100 degree Celsius leads to optimal device efficiency for mixed-cation halide perovskite light-emitting diodes.
Yan Sun   +11 more
doaj   +1 more source

High Light Utilization and Color Rendering in Vacuum‐Deposited Semitransparent Perovskite Solar Cells

open access: yesAdvanced Materials, EarlyView.
In this work, low bandgap (≈1.55 eV) semitransparent perovskite solar cells (ST‐PSCs) having thin (thickness < ≈100 nm) perovskite layers and transparent conductive oxide‐based rear electrodes are fabricated using vacuum‐deposition methods. Two different ST‐PSCs demonstrated a high light utilization efficiency value of 4.2 (PCE: 9.26% and AVT: 45.3 ...
Abhyuday Paliwal   +9 more
wiley   +1 more source

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