Miniaturized handheld Raman imager based on 2D MEMS scanning for non-destructive analysis of thermally sensitive samples. [PDF]
Zheng Y, Mu T.
europepmc +1 more source
Optical Signature of Moiré Superlattices Formed by Twisted SrTiO3 Membranes
We discover optical signatures from bonded interfaces in twisted SrTiO3 moiré superlattices, including low‐frequency Raman vibrational modes and strong second‐harmonic generation, consistent with strong interlayer coupling inferred from cross‐sectional electron microscopy and ab initio calculations. ABSTRACT Moiré superlattices formed at the interfaces
T. A. M. Ragib Shahriar +13 more
wiley +1 more source
Correlative Ultrafast Imaging of a Photodriven Phase Transition Using 4D Scanning Transmission Electron Microscopy. [PDF]
Niedermayr A +4 more
europepmc +1 more source
Inspired by lung alveolar architecture, a dual‐templating strategy combining CO2 bubble and ice templating creates mechanically robust super‐macroporous hydrogels with highly interconnected transport pathways. The resulting material achieves 3.37× faster moisture sorption and 1.72× higher solar‐driven water release than single‐templated counterparts ...
Pan Huang +7 more
wiley +1 more source
Chalcogen bonding-directed photoresponsive helix from azo-fused H-bonded arylamide foldamers. [PDF]
Liu CZ +9 more
europepmc +1 more source
Ferroelectric nanoclusters create local internal fields in a normally non‐switchable polar film because of polarization mismatch at their interfaces. That field opposes polarization in the regions with larger polarization and reinforces polarization in the regions with smaller polarization.
Anna N. Morozovska +5 more
wiley +1 more source
Boosting the Performance of Visible/Near-Infrared Organic Photodetectors via Hole Interface Engineering. [PDF]
Fan Y +10 more
europepmc +1 more source
Effect of Optical Illumination on Bubble Nanodomains
Stable surface‐confined nanoscale bubble domains are created and manipulated in PMN‐PT single crystals. Under above‐bandgap illumination, these bubble nanodomains remain unchanged. However, upon illumination cessation, they rapidly expand to switch the entire crystal surface, due to the accumulation of a large reservoir of electrons at the crystal ...
Haoze Zhang +8 more
wiley +1 more source
Ab Initio Polariton Spectra of ZnTPP Molecules Collectively Coupled Inside an Optical Cavity. [PDF]
Weight BM, Rury AS, Shao Y, Huo P.
europepmc +1 more source
Stacking Fault Complexions in AgSbTe2 Thermoelectrics With Enhanced Electrical Conductivity
Atomic‐scale characterization resolves stacking fault complexion in AgSbTe2, showing Te and Sb segregation along with lattice dilation. Their enhanced effects on phonon scattering are modeled analytically. Although most defects also impede electron transport, local four‐point‐probe measurements reveal higher electrical conductivity at stacking fault ...
Lamya Abdellaoui +13 more
wiley +1 more source

