A new n-type semiconducting perylene bisimide dye has been synthesized that gelates a broad variety of organic solvents to afford well-defined nano- and mesoscopic helical fibers and bundles.

Use of phase transfer catalysts such as 18-crown-6 enables ionic, linear conjugated poly[2,6-{1,5-bis(3-propoxysulfonicacidsodiumsalt)}naphthylene]ethynylene (PNES) to efficiently disperse single-walled carbon nanotubes (SWNTs) in multiple organic solvents under standard ultrasonication methods. Steady-state electronic absorption spectroscopy, atomic force microscopy (AFM), and transmission ele...

background: volatile organic compounds (vocs) are human-made chemicals widely spread in the environment and produced by petrochemical industries and petroleum refineries. the aim of this research was to evaluate the distribution of vocs in the ambient air of mahshahr petrochemical complex, iran. methods: this study was a cross-sectional research performed in 2009. we used the method numbered 15...

Three highly fluorescent phosphonates have been prepared in good yields from different arylene bridged 5-iodothiophenes by following an optimized four-step procedure. The compounds have been immobilised on mesoporous zirconia, alumina and titania particles in order to probe their luminescence properties on the surfaces. The organic compounds as well as the obtained hybrid materials have been ch...

The fascinating characteristic of organic light-emitting transistors (OLETs) being electrical switches with an intrinsic capability makes them attractive candidates for a wide variety applications, ranging from sensors to displays. To date, the OLET ambipolar trilayer heterostructure is most developed architecture maximizing device performance. However, major challenge OLETs remains inverse cor...

The benzothiadiazole moiety has been extensively exploited as a building block in the syntheses of efficient organic semiconducting materials during the past decade. In this paper, parallel synthetic routes to benzothiadiazole derivatives, inspired by previous computational findings, are reported. The results presented here show that various C-C cross-couplings of benzothiadiazole, thiophene, a...

Cr3Al shows semiconducting behavior that has not been explained previously. We used density functional theory calculations, performed at the Cornell NanoScale Facility to study the effect of chemical ordering and magnetism on the semiconducting behavior. The calculations show that the proposed chemically ordered Cr3Al structure in the Cr1-xAlx phase diagram is the lowest energy structure of tho...