Semiconductor shish kabob nanostructures combine properties from different dimensions

first_img The scientists, Chun Li, et al., at North Carolina University in Raleigh, North Carolina; and Oak Ridge National Laboratory in Oak Ridge, Tennessee, have published a paper on the nanosheet-nanowire heterostructures in a recent issue of Nano Letters.So far, most research on growing nanoscale heterostructures has focused on combining materials that have the same dimensions. Studies that involve combining materials with different dimensions have remained limited because it is much more difficult to integrate these materials into a single structure due to their different growth mechanisms. However, as the researchers here explain, integrating materials with different dimensions is attractive because it can combine the advantages of both materials while mitigating the disadvantages. As a result, such heterostructures may enable novel functions that cannot be obtained from each of the components separately. (Phys.org) —By growing 2D nanosheets along the surface of a 1D nanowire, scientists have synthesized a new 3D nanoscale heterostructure that they call—for appropriate reasons—”shish kabobs.” Due to the integration of the two dimensionalities, the new structures could have a wide variety of applications, such as for solar energy conversion, energy storage, and photonics. Copyright 2013 Phys.org All rights reserved. This material may not be published, broadcast, rewritten or redistributed in whole or part without the express written permission of Phys.org. Explore further SEM images of nanosheet-nanowire heterostructures. The researchers found that air exposure facilitates the nucleation of nanosheets by modifying the surface of the nanowire. Credit: Chun Li, et al. ©2013 American Chemical Society Researchers create semiconductor ‘nano-shish-kebabs’ with potential for 3-D technologies 2D nanosheets grown on a 1D nanowire can combine the advantages of both dimensionalities and may enable novel functions that cannot be obtained from each of the components separately. Credit: Chun Li, et al. ©2013 American Chemical Societylast_img read more

Read More »