Twisted Carbazole Dendrons for Solution-Processable Green Emissive Phosphorescent Dendrimers.

A family of first-generation dendrimers containing 3,5-bis(carbazolyl)phenyl dendrons attached to a green emissive -tris(2-phenylpyridyl)iridium(III) core were prepared. The solubility of the dendrimers was imparted by the attachment of -butyl surface groups to the carbazole moieties. The dendrimers differed in the number of dendrons attached to each ligand (one or two dendrons) as well as the degree of rotational restriction within the dendrons.

Engineering fluorinated-cation containing inverted perovskite solar cells with an efficiency of >21% and improved stability towards humidity.

Efficient and stable perovskite solar cells with a simple active layer are desirable for manufacturing. Three-dimensional perovskite solar cells are most efficient but need to have improved environmental stability. Inclusion of larger ammonium salts has led to a trade-off between improved stability and efficiency, which is attributed to the perovskite films containing a two-dimensional component.

Author Correction: Clear and transparent nanocrystals for infrared-responsive carrier transfer.

The original version of this Article omitted the fourth author Taizo Yoshinaga, who is from the 'Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Japan'. Consequently, the third sentence of the Author Contributions, 'M.S.

Clear and transparent nanocrystals for infrared-responsive carrier transfer.

Infrared-light-induced carrier transfer is a key technology for 'invisible' optical devices for information communication systems and energy devices. However, clear and colourless photo-induced carrier transfer has not yet been demonstrated in the field of photochemistry, to the best of our knowledge. Here, we resolve this problem by employing short-wavelength-infrared (1400-4000 nm) localized surface plasmon resonance-induced electron injection from indium tin oxide nanocrystals to transparent metal oxides.

Structural changes of water molecules during photoelectrochemical water oxidation on TiO thin film electrodes.

Behaviors of photogenerated charge carriers and structural changes of water molecules on TiO photoelectrodes were investigated by using time-resolved visible to mid-IR absorption spectroscopy. From the spectra measured in the visible to NIR region, it was shown that the lifetime of trapped electrons and holes becomes longer upon applying more positive potentials. This result was reasonably explained by the enhancement of the upward band bending at the water/TiO interface.

Interfacial Manipulation by Rutile TiO Nanoparticles to Boost CO Reduction into CO on a Metal-Complex/Semiconductor Hybrid Photocatalyst.

Metal-complex/semiconductor hybrids have attracted attention as photocatalysts for visible-light CO reduction, and electron transfer from the metal complex to the semiconductor is critically important to improve the performance. Here rutile TiO nanoparticles having 5-10 nm in size were employed as modifiers to improve interfacial charge transfer between semiconducting carbon nitride nanosheets (NS-CN) and a supramolecular Ru(II)-Re(I) binuclear complex (RuRe). The RuRe/TiO/NS-CN hybrid was capable of photocatalyzing CO reduction into CO with high selectivity under visible light (λ > 400 nm), outperforming an analogue without TiO by a factor of 4, in terms of both CO formation rate and turnover number (TON).