Appl Phys Lett 2007, 91:053503.CrossRef 26. Liu B, Aydil ES: Growth of oriented single-crystalline rutile TiO 2 nanorods on transparent conducting substrates for dye-sensitized solar cells. J Am Chem Soc 2009, 131:3985–3990.CrossRef 27. Kraeutler B, Bard AJ: Heterogeneous photocatalytic preparation of supported catalysts. Photodeposition of platinum on TiO2 powder and other substrates. J Am Chem find more Soc 1978, 100:4317–4318.CrossRef 28. Takai A, Kamat PV: Capture,

store, and discharge. Shuttling photogenerated electrons across TiO2–silver interface. ACS Nano 2011, 5:7369–7376.CrossRef 29. Lide DR: Handbook of Chemistry and Physics. 83rd edition. Boca Raton: CRC; 2002. Competing interests The authors declare that they have no competing interests. Authors’ contributions HWH carried out the TSA HDAC experiments and wrote the manuscript. JND and PXD101 NYY conceived the study, participated in its design, and amended the paper. SZ participated in the discussion and interpretation of the data. YL and LB participated in the experiments. All authors read and approved the final manuscript.”
“Background It has been recently shown [1] that silicon and germanium nanowires can give a figure of merit of over 2 at 800 K due to strong reduction of phonon thermal conductivity in nanowires as compared with their equivalent bulk material, i.e., the reduction

is caused not only by the alloy disorder, but also by the decrease of the phonon mean free path by reduced-dimensional effects. The effect of temperature on the thermal conductivity of silicon and germanium may be quite different since the Debye temperature of silicon almost doubles that of germanium. The purpose of the present work is to analyze quantum statistic effects on thermal phonon conductivity in silicon and germanium nanoribbons with the use of the

novel semiquantum molecular dynamics simulation [2]. Molecular dynamics is a method of numerical modeling of molecular systems based on classical Newtonian mechanics. It does not allow selleck compound for the description of pure quantum effects such as the freezing out of high-frequency oscillations at low temperatures and the related decrease to zero of heat capacity for T→0. On the other hand, because of its complexity, a pure quantum-mechanical description does not allow, in general, the detailed modeling of the dynamics of many-body systems. To overcome these obstacles, different semiclassical methods, which allow to take into account quantum effects, have been proposed [3–9]. The most convenient method for numerical modeling is to use the Langevin equations with color-noise random forces [5, 7]. In this approximation, the dynamics of the system is described with the use of classical Newtonian equations of motion while the quantum effects are introduced through random Langevin-like forces with a specific power spectral density (the color noise), which describes the interaction of the molecular system with the thermostat.