Effective Mass-Driven Structural Transition in a Mn-Doped ZnS Nanoplatelet

Gerard, Celine and Das, Ruma and Mahadevan, Priya and Sarma, DD (2013) Effective Mass-Driven Structural Transition in a Mn-Doped ZnS Nanoplatelet. In: JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 4 (6). pp. 1023-1027.

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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 polyrnorphs 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:	Journal Article
Publication:	JOURNAL OF PHYSICAL CHEMISTRY LETTERS
Publisher:	AMER CHEMICAL SOC
Additional Information:	Copyright for this article belongs to the AMER CHEMICAL SOC, USA.
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	14 May 2013 07:28
Last Modified:	14 May 2013 07:28
URI:	http://eprints.iisc.ac.in/id/eprint/46494

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