Nanoscale

doi: 10.1039/C5NR90011Epmid: N/A

doi: 10.1039/c5nr90011epmid: N/A

doi: 10.1039/C5NR90012Cpmid: N/A

doi: 10.1039/c5nr90012cpmid: N/A

doi: 10.1039/C5NR90014Jpmid: N/A

doi: 10.1039/c5nr90014jpmid: N/A

Liu, Siqi; Weng, Bo; Tang, Zi-Rong; Xu, Yi-Jun

doi: 10.1039/c4nr04229hpmid: 25273001

A ternary hybrid structure of one-dimensional (1D) silver nanowire-doped reduced graphene oxide (RGO) integrated with a CdS nanowire (NW) network has been fabricated via a simple electrostatic self-assembly method followed by a hydrothermal reduction process. The electrical conductivity of RGO can be significantly enhanced by opening up new conduction channels by bridging the high resistance grain-boundaries (HGBs) with 1D Ag nanowires, which results in a prolonged lifetime of photo-generated charge carriers excited from the CdS NW network, thus making Ag NW–RGO an efficient co-catalyst with the CdS NW network toward artificial photosynthesis.

Guo, Xin; Xie, Hao-Jun; Zheng, Jia-Wei; Xu, Hao; Wang, Qian-Kun; Li, Yan-Qing; Lee, Shuit-Tong; Tang, Jian-Xin

doi: 10.1039/c4nr04933kpmid: 25341192

The synthesis of multi-scale SnS nanostructures with favorable fluorescence is facilely accomplished via a well-excogitated gentle process, involving simple precursors, stabilized chemical medium and primitive ligand exchange. The fabricated SnS nanocrystals can be adopted as hole transporting materials in photovoltaic devices for enhancing its power conversion efficiency.

Seth, Jhumur; Kona, Chandrababu Naidu; Das, Shyamsundar; Prasad, B. L. V.

doi: 10.1039/c4nr04239epmid: 25489764

A simple and convenient method for the preparation of ultra-small palladium nanoparticles (Pd-NPs) by a modified digestive ripening method is described. These nanoparticles catalyse the hydrogenation of the terminal alkyne groups to alkanes selectively, and show no effect on other labile protecting and internal alkyne or internal/external alkene groups present in the molecule.

Wang, Zenghui; Jia, Hao; Zheng, Xuqian; Yang, Rui; Wang, Zefang; Ye, G. J.; Chen, X. H.; Shan, Jie; Feng, Philip X.-L.

doi: 10.1039/c4nr04829fpmid: 25385657

We report on the experimental demonstration of a new type of nanoelectromechanical resonator based on black phosphorus crystals. Facilitated by a highly efficient dry transfer technique, crystalline black phosphorus flakes are harnessed to enable drumhead resonators vibrating at high and very high frequencies (HF and VHF bands, up to ∼100 MHz). We investigate the resonant vibrational responses from the black phosphorus crystals by devising both electrical and optical excitation schemes, in addition to measuring the undriven thermomechanical motions in these suspended nanostructures. Flakes with thicknesses from ∼200 nm down to ∼20 nm clearly exhibit elastic characteristics transitioning from the plate to the membrane regime. Both frequency- and time-domain measurements of the nanomechanical resonances show that very thin black phosphorus crystals hold interesting potential for moveable and vibratory devices and for semiconductor transducers where high-speed mechanical motions could be coupled to the attractive electronic and optoelectronic properties of black phosphorus.