Simple synthesis of palladium nanoparticles, ß-phase formation, and the control of chain and dipole orientations in palladium-doped poly(vinylidene fluoride) thin films.

Palladium nanoparticles (Pd-NP's) are prepared by a simple one-step procedure when poly(vinylidene fluoride) (PVDF) is used as a polymer stabilizer. High-quality Pd-NP-doped PVDF thin films are fabricated where the heat-controlled spin-coating technique is adopted. The effect of Pd-NP's on the crystal modifications and lamellae orientation in PVDF films is investigated using Fourier transform infrared-grazing incidence reflection absorption spectroscopy. The electroactive ß phase and edge-on crystalline lamellae are found to be formed preferentially in Pd-NP-doped PVDF films. As a result, Pd-NP-doped PVDF ultrathin films gave a very good discernible contrast between the written and erased data bits, which suggests that they can be used as a scanning-probe-microscopy-based ferroelectric memory device or a ferroelectric gate field-effect transistor memory device in the future.

A novel solution-processible heterodinuclear AlIII/IrIII complex for host-dopant assembly OLEDs.

A discrete heterodinuclear Al (III)/Ir (III) complex shows bright-orange light emission when used as an active layer in host-dopant assembly organic light-emitting diodes based on a solution process.

Aluminium-salen luminophores as new hole-blocking materials for phosphorescent OLEDs.

The organic light-emitting diodes (OLEDs) employing complex [salen(tBu)4Al(OC6H4-p-C6H5)] (4) as a hole-blocking layer produced stable green EL emission of Ir(ppy)3 irrespective of changing current density and showed higher brightness and device efficiency than the BAlq-based device.

Strongly fluorescent organogel system comprising fibrillar self-assembly of a trifluoromethyl-based cyanostilbene derivative.

The entangled fibrillar structure and its strong fluorescence emission have been observed in a novel class of organogel systems consisting of a CF3-based pi-conjugated organogelator.