Effective mass-driven structural transition in a Mn-doped ZnS nanoplatelet

Gerard, Celine ; Das, Ruma ; Mahadevan, Priya ; Sarma, D. D. (2013) Effective mass-driven structural transition in a Mn-doped ZnS nanoplatelet Journal of Physical Chemistry Letters, 4 (6). pp. 1023-1027. ISSN 1948-7185

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Official URL: http://pubs.acs.org/doi/abs/10.1021/jz4002746

Related URL: http://dx.doi.org/10.1021/jz4002746

Abstract

Mn doping in ZnS nanoplatelets has been shown to induce a structural transition from the wurtzite to the zinc blende phase. We trace the origin of this transition to quantum confinement effects, which shift the valence band maximum of the wurtzite and zinc blende polymorphs of ZnS at different rates as a function of the nanocrystal size, arising from different effective hole masses in the two structures. This modifies the covalency associated with Mn incorporation and is reflected in the size-dependent binding energy difference for the two structures.

Item Type:Article
Source:Copyright of this article belongs to American Chemical Society.
Keywords:Binding Energy; Nanoplatelet; Structural Transition
ID Code:102854
Deposited On:02 Feb 2018 03:56
Last Modified:02 Feb 2018 03:56

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