Adv. Mater. 2010, 22, 1233–1236 2010 WILEY-VCH Verlag G T IO N One of the most fundamental properties of both organic and inorganic semiconductors is charge mobility. It has been unambiguously shown that the mobility in both of these materials systems is strongly linked to the degree of long range order—that is, more extended crystallinity leads to a larger charge mobility, which ultimately det...

The apparent analogy between the self-diffusion of linear oligomers, 2 up to 64 monomers, and their trace diffusion in an entangled polymer host of length 256 was investigated by molecular dynamics at constant pressure. Oligomers and polymers were represented by a same generic coarse-grained (bead-spring) model. The scaling relationships of the self-diffusion coefficient, D, and trace diffusion...

We experimentally confirmed that the spin-orbit lengths of noble metals obtained from weak antilocalization measurements are comparable to the spin diffusion lengths determined from lateral spin valve ones. Even for metals with strong spin-orbit interactions such as Pt, we verified that the two methods gave comparable values which were much larger than those obtained from recent spin torque fer...

0009-2614/$ see front matter 2010 Elsevier B.V. A doi:10.1016/j.cplett.2010.11.069 ⇑ Corresponding author. E-mail address: [email protected] (P. Yang). 1 Present address: University of Michigan, Ann Arbo Radial p–n junction solar cells have been predicted theoretically to have better efficiencies than their planar counterparts due to a decrease in the distance required to collect minority car...

We report a systematic study of xenon gas diffusion NMR in simple model porous media, random packs of mono-sized glass beads, and focus on three specific areas peculiar to gas-phase diffusion. These topics are: (i) diffusion of spins on the order of the pore dimensions during the application of the diffusion encoding gradient pulses in a PGSE experiment (breakdown of the narrow pulse approximat...