Results 111 to 120 of about 1,396,787 (284)
Advanced Energy Materials, EarlyView.Multiscale perspectives on how excess charges in soft lead halide perovskites induce operational instability in photovoltaic devices are presented. Localized carriers formed under thermodynamic non‐equilibrium states modify atomistic interactions and drive lattice distortions, accelerating device degradation.
Joo‐Hong Lee +6 more
wiley +1 more source
Angewandte Chemie, EarlyView.A hybrid “confocal” electrochemiluminescence (ECL) microscopy combines depth‐resolved and time‐resolved imaging to visualize ECL processes across three spatial dimensions and time. By exploiting sluggish coreactant kinetics at ITO electrodes, homogeneous redox propagation enables depth‐resolved, single‐cell resolution mapping of living multicellular ...
Elisa D'Arrigo +4 more
wiley +2 more sources
Advanced Energy Materials, EarlyView.This review looks at the different experimental techniques that measure spatiotemporal charge carrier dynamics. This information is viewed in the context of particulate photocatalysts, outlining the insights these techniques provide and how they advance our understanding.
Sutripto Khasnabis, Robert Godin
wiley +1 more source
Nitro Reduction‐Based RNA Control and Ultrafast Release
Angewandte Chemie, EarlyView.A chemical RNA caging–uncaging strategy based on nitro reduction is described. Nitroaryl groups introduced via acylation temporarily block the functions of diverse RNAs in vitro and in living cells. Treatment with a diboronic acid–bipyridine mixture rapidly reduces the nitro groups, releasing RNAs and restoring their activity.
Yiran Zhao +6 more
wiley +2 more sources
Advanced Energy Materials, EarlyView.A novel top‐to‐bottom film restructuring strategy is applied to perovskite films, taking advantage of high penetration of vapor‐phase ligand. A gradient‐distributed 2D perovskite structure is built up from top surface to film bulk, meanwhile, inhomogeneity at the buried interface is mitigated, which leads to high quality perovskite films with improved ...
Zhengyan Jiang +8 more
wiley +1 more source
Active Region Overheating in Pulsed Quantum Cascade Lasers: Effects of Nonequilibrium Heat Dissipation on Laser Performance. [PDF]
Nanomaterials (Basel), 2023 Vrubel II +6 more
europepmc +1 more source
, 2010 The complex interplay by tunneling and scattering in quantum cascade lasers is analyzed with nonequilibrium Green's functions. Data for a recently proposed simple structure based on only two wells per period is presented.
Lund University., Wacker, Andreas,
core
High-performance superlattice quantum cascade lasers
, 1999 Superlattice quantum cascade (QC) lasers based on optical transitions between conduction minibands are unipolar semiconductor lasers with high-current-carrying capability and attendant high optical power due to miniband transport in the active and in the
Capasso F +7 more
core +1 more source
Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.This review aims to provide a broad understanding for interdisciplinary researchers in engineering and clinical applications. It addresses the development and control of magnetic actuation systems (MASs) in clinical surgeries and their revolutionary effects in multiple clinical applications.
Yingxin Huo +3 more
wiley +1 more source
Free-running ring quantum cascade laser with 50 kHz linewidth
JPhys PhotonicsWe report on the noise characterization of a free-running ring quantum cascade laser resonator emitting a single frequency mode around 7.7 $\mu$ m. Using a gas cell filled with N $ _2$ O as a frequency-to-voltage discriminator, we measured the frequency ...
Alexandre Parriaux +5 more
doaj +1 more source