Abstract
We report on electronic properties of water-filled fullerenes [H2O(n)@C60, H2O(n)@C180, and H2O(n)@C240] under mechanical deformation using density functional theory. Under a point load, energy gap change of empty and water-filled fullerenes is investigated. For C60 and H2O(n) @C60, the energy gap decreases as the tensile strain increases. For H2O(n)@C60, under compression, the energy gap decreases monotonously while for C60, it first decreases and then increases. Similar behavior is observed for other empty (C180 and C240) and water-filled [H2O(n) @C180 and H2O(n)@C240] fullerenes. The energy gap decrease of water-filled fullerenes is due to the increased interaction between water and carbon wall under deformation.
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Min, K., Farimani, A.B. & Aluru, N.R. Mechanically modulated electronic properties of water-filled fullerenes. MRS Communications 5, 305–310 (2015). https://doi.org/10.1557/mrc.2015.22
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DOI: https://doi.org/10.1557/mrc.2015.22