Buscar
Selective Growth of Layered Perovskites for Stable and Efficient Photovoltaics
(Royal Society of Chemistry, 2018-11)
Perovskite solar cells (PSCs) are promising alternatives toward clean energy because of their high-power
conversion efficiency (PCE) and low materials and processing cost. However, their poor stability under
operation ...
Valley Hall phases in kagome lattices
(American Physical Society, 2019)
We report the finding of the analogous valley Hall effect in phononic systems arising from mirror symmetry
breaking, in addition to spatial inversion symmetry breaking. We study topological phases of plates and
spring-mass ...
Interplay of host volume variations and internal distortions in the course of intercalation into disordered matrices
(2007)
Based on a combination of the distortive lattice gas model and the maximum information entropy approach, the thermodynamics of insertion into disordered hosts is analyzed. It is found that the isotherm specificities can ...
Li2SnO3 branched nano- and microstructures with intense and broadband white-light emission
(Springer Verlag, 2019)
Exploiting the synergy between microstructure, morphology and dimensions by suitable nanomaterial engineering, can effectively upgrade
the physical properties and material performances. Li2SnO3 elongated nano- and ...
Charged Biological Membranes Repel Large Neutral Molecules by Surface Dielectrophoresis and Counterion Pressure
(American Chemical Society, 2024-01-16)
Macromolecular crowding is the usual condition of cells. The implications of the crowded cellular environment for protein stability and folding, protein-protein interactions, and intracellular transport drive a growing ...
Visualizing time: how linguistic metaphors are incorporated into displaying instruments in the process of interpreting time-varying signals
(2017)
Spatial visualization is a well-established topic of education research that has allowed improving science and engineering students’ skills on spatial relations. Connections have been established between visualization as ...
Energy transduction and signal averaging of fluctuating electric fields by a single protein ion channel
(Royal Society of Chemistry, 2017)
We demonstrate the electrical rectification and signal averaging of fluctuating signals using a biological
nanostructure in aqueous solution: a single protein ion channel inserted in the lipid bilayer characteristic
of ...
Ultrathin Acoustic Parity-Time Symmetric Metasurface Cloak
(American Association for the Advancement of Science, 2019)
Invisibility or unhearability cloaks have beenmade possible by using metamaterials enabling light or sound to flow around obstacle
without the trace of reflections or shadows. Metamaterials are known for being flexible ...
Potassium ions as a kinetic controller in ionic double layers for hysteresis-free perovskite solar cells
(Royal Society of Chemistry, 2019-07-22)
Since ion migration and interaction with external contacts has been regarded as one of the origins for photocurrent density (J)–voltage (V) hysteresis and phase segregation in perovskite solar cells (PSCs) under operational ...
Interfacial Mechanism for Efficient Resistive Switching in Ruddlesden-Popper Perovskites for Non-volatile Memories
(American Chemical Society, 2020-01-16)
Ion migration, one origin of current–voltage hysteresis, is the bane of halide perovskite optoelectronics. Herein, we leverage this unwelcome trait to unlock new opportunities for resistive switching using layered ...