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Representative structures of diamondoids and their relation with the diamond lattice.

Diamondoids are cage-like hydrocarbon molecules with a C-C frame resembling that of diamond lattice. Essentially molecular-size diamonds, they have exhibited a variety of unique properties such as monochromatic photoemission [1-2] and ultra-strong van der Waals interaction that enables unique chemical bond formation [4]. Monochromatic photoemission has been used to establish highest resolution on X-PEEM by coating surface of magnetic domain sample with Self Assembly Monolayers of diamondoids [3].

We have the capability to separate, uniquely identify and chemically functionalize a large group of this family of molecules. Currently we are interested in several perspectives regarding the physics, chemistry and application of this novel type of diamond materials, including:

  • diamondoid-modulated self-assembly of low-dimensional nanostructures,
  • diamondoid-seeded growth of high-purity diamond, and
  • the development of diamondoid-enabled stable monochromatic photoemitter towards practical electron source for microscopy and lithography applications.

Selected Publications

[1] W. L. Yang et al. Monochromatic electron photoemission from diamondoid monolayers. Science 316, 1460 (2007)

[2] W. A. Clay et al. The origin of monochromatic photoemission peak in diamondod monolayer. Nano Lett. 9, 56 (2009)

[3] H. Ishiwata et al. Diamondoid coating enables disruptive approach for chemical and magnetic imaging with 10 nm spatial resolution. Appl. Phys. Lett. 101, 163101 (2012)


[4] P. R. Schreiner et al. Overcoming lability of extremely long alkane carbon-carbon bonds through dispersion forces. Nature 477, 308 (2011)