Results 91 to 100 of about 19,012,694 (264)
Advanced Science, EarlyView.An innovative hybrid passive cooler integrates a porous radiative coating and an atmospheric moisture‐harvesting hydrogel within a melamine sponge skeleton, synergizing radiative cooling, sensible‐heat absorption, and latent‐heat evaporation. It maintains an average 8.3°C sub‐ambient cooling under sunlight and a maximum ∼42.4°C drop under 2000 W·m−2 ...
Qingyuan Du +6 more
wiley +1 more source
Numerical modelling of photonic crystal based switching devices [PDF]
, 2012 In the last few years research has identified Photonic Crystals (PhCs) as promising material that exhibits strong capability of controlling light propagation in a manner not previously possible with conventional optical devices.
Selim, Ramsey
core
Calculation of losses in 2-D photonic crystal membrane waveguides using the 3-D FDTD method [PDF]
, 2004 The three-dimensional finite-difference time-domain method is used to obtain loss per unit length in a two-dimensional photonic crystal membrane waveguide by simulating three different length guides. Results are shown for propagation both above and below
Cryan, MJ +5 more
core +1 more source
Unveiling a Near‐Total Rear Passivation for High Performance of Ultra‐Thin ACIGS
Advanced Science, EarlyView.Ultra‐thin solar cells of (Ag,Cu)(In,Ga)Se2 (ACIGS) suffer from rear interface recombination, limiting their performance. To tackle it, a full coverage plasma enhanced chemically vapor‐deposited 8 nm porous SiOx passivation layer was implemented and evaluated. It is shown that a combination of the near‐complete passivation from silica and the formation
Xavier L. Pinheiro +7 more
wiley +1 more source
A spectrally-accurate FVTD technique for complicated amplification and reconfigurable filtering EMC devices [PDF]
, 2012 The consistent and computationally economical analysis of demanding amplification and filtering structures is introduced in this paper via a new spectrally-precise finite-volume time-domain algorithm.
Scott, Jonathan B. +4 more
core +1 more source
AIP Advances, 2016 In this paper, we proposed a method to numerically determinate 3-dimensional thermal response due to electromagnetic exposure quickly and accurately. Due to the stability criterion the explicit finite-difference time-domain (FDTD) method works fast only ...
Wei Cen, Ralph Hoppe, Ning Gu
doaj +1 more source
Cavity‐Enhanced Eye‐Readable Detection of 0.1% H2 via Active Modulation of Charge‐Transfer Plasmons
Advanced Science, EarlyView.A cavity‐structured nanoparticle sensor is developed for highly sensitive, eye‐readable hydrogen detection. Its excellent colorimetric response arises from a hydrogen‐induced charge‐transfer mechanism: reduction of the dielectric oxide shell in H2 triggers a transition from the plasmonic gap mode to the charge‐transfer plasmon mode.
Xuemin Zhang +9 more
wiley +1 more source
The analysis of medium-sized arrays of complex elements using a combination of FDTD and reaction matching [PDF]
, 1999 The analysis of medium-sized arrays of complex antenna elements by means of a full-wave technique often requires impractical amounts of computer power. Nevertheless, it is essential that all the mutual couplings between elements are taken into account. A
Railton, CJ +3 more
core +1 more source
Advanced Science, EarlyView.Niobium nitride (NbN) broadband plasmonic metasurface absorbers provide an efficient platform for solar‐energy conversion through hot‐carrier injection. Quasi‐epitaxial NbN features a low work function of 4.0 eV, reducing the interfacial injection barrier and facilitating charge transfer into adjacent photocatalysts.
Tzu‐Yu Peng +11 more
wiley +1 more source