English

Number Series of Atoms, Interatomic Bonds and Interface Bonds Defining Zinc-Blende Nanocrystals as Function of Size, Shape and Surface Orientation: Analytic Tools to Interpret Solid State Spectroscopy Data

Materials Science 2016-08-09 v1 Mesoscale and Nanoscale Physics

Abstract

Semiconductor nanocrystals (NCs) experience stress and charge transfer by embedding materials or ligands and impurity atoms. In return, the environment of NCs experiences a NC stress response which may lead to matrix deformation and propagated strain. Up to now, there is no universal gauge to evaluate the stress impact on NCs and their response as a function of NC size dNCd_{\mathrm{NC}}. I deduce geometrical number series as analytical tools to obtain the number of NC atoms NNC(dNC[i])N_{\mathrm{NC}}(d_{\mathrm{NC}}[i]), bonds between NC atoms Nbnd(dNC[i])N\mathrm{_{bnd}}(d_{\mathrm{NC}}[i]) and interface bonds NIF(dNC[i])N\mathrm{_{IF}}(d_{\mathrm{NC}}[i]) for seven high symmetry zinc-blende (zb) NCs with low-index faceting: {001} cubes, {111} octahedra, {110} dodecahedra, {001}-{111} pyramids, {111} tetrahedra, {111}-{001} quatrodecahedra and {001}-{111} quadrodecahedra. The fundamental insights into NC structures revealed here allow for major advancements in data interpretation and understanding of zb- and diamond-lattice based nanomaterials. The analytical number series can serve as a standard procedure for stress evaluation in solid state spectroscopy due to their deterministic nature, easy use and general applicability over a wide range of spectroscopy methods as well as NC sizes, forms and materials.

Keywords

Cite

@article{arxiv.1608.02467,
  title  = {Number Series of Atoms, Interatomic Bonds and Interface Bonds Defining Zinc-Blende Nanocrystals as Function of Size, Shape and Surface Orientation: Analytic Tools to Interpret Solid State Spectroscopy Data},
  author = {Dirk König},
  journal= {arXiv preprint arXiv:1608.02467},
  year   = {2016}
}

Comments

14 pages, 13 figures