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The ionic conductivity of methylammonium lead iodide is enhanced up to two orders of magnitude when the material is exposed to light. This effect may also have implications for the photostability of perovskites.
Simulations were used to investigate the effects of local structural heterogeneity on piezoelectricity in ceramics. From this, a Sm-doped PMN–PT composition was designed with an extremely high piezoelectric coefficient for polycrystalline systems.
TiO2 and other metal oxides were interfaced with molecular boron clusters to form a hybrid material. This modifies the electrochemical and photocatalytic properties, enabling fast electron transfer and dye degradation under red light.
Gas-filled vesicles derived from photosynthetic microbes are shown to elicit magnetic resonance imaging contrast in vitro and in vivo with the potential for acoustically modulated multiplexing and molecular sensing.
The doping efficiency of n-type molecular dopants in organic semiconductors is shown to depend on the energy difference between the electron affinity of the host and the ionization potential of the doped system.
The accurate structure of the platelet defects in diamond is now resolved by transmission electron microscopy, and, out of all the proposed models, it agrees well with the zigzag atomic model.
It is shown that Ohmic contacts for the injection of hole carriers into organic semiconductors with high ionization energy can be formed by adding ultrathin interlayers with higher ionization energy.
Electron density in TiS2 is determined by synchrotron X-ray diffraction, which reveals significant differences between experimental data and theory for interlayer van der Waals interactions.
Understanding the structural stability of platinum surfaces upon oxidation and reduction conditions has proved challenging. A correlation of surface site formation to nanoisland growth in the electrochemical roughening of Pt(111) is now identified.
Sub-micrometre MOF particles are incorporated into polymers to form mixed matrix membranes. Molecular sieving enables performance far beyond current limits for two applications, butane isomer separation and combined CO2/H2S removal from natural gas.
An ionogram based on a layer-free nanotransistor reveals the ability to selectively measure target ions in serum. Experimental and theoretical assessment of the mechanism of the surface–ion interaction is also revealed.
Molecular simulations reveal the self-assembly of small molecules into nanoparticle drug carriers. Targeting of colon and liver cancer cells by the nanoparticles via kinase inhibitors is employed in anti-tumour therapy in vivo.
This work reports a quantitative investigation of the interaction parameter and miscibility of donor and acceptor organic molecules and their relationship with the fill factor and photovoltaic performance of bulk-heterojunction organic solar cells.
Reconfigurable electronic devices that can be shaped in two or more stable geometries modifying their functionalities have been realized by engineering the sequence in which the elastomeric substrates are mechanically buckled.
CsPbI3–xBrx solar cells, which undergo temperature- and moisture-driven reversible transitions between a non-perovskite transparent phase and a perovskite light-absorbing phase, are used as thermochromic photovoltaic devices integrated in windows.
Controlled widening of threading dislocations in SiGe layers epitaxially grown on Si allows the realization of resistive switching devices with enhanced uniformity, high on/off ratio and long retention times.
A perturbative method is proposed for the systematic design of mechanical metamaterials, where each element of the discrete model is associated with individual geometric features of the metamaterial, through the weak interaction between the unit cells.