Polarization-induced charge distribution at homogeneous zincblende/wurtzite heterostructural junctions in ZnSe nanobelts.

Li, Luying; Jin, Lei; Wang, Jianbo; Smith, David J; Yin, Wan-Jian; Yan, Yanfa; Sang, Hongqian; Choy, Wallace C H et al. · Adv Mater · 2012

basic_science · Level V

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Abstract

Homogeneous heterostructural wurtzite (WZ)/zincblende (ZB) junctions are successfully fabricated in ZnSe nanobelts. Polarity continuity across the ZB/WZ interface is demonstrated. The saw-tooth-like potential profile induced by spontaneous polarization across the WZ/ZB/WZ interfaces is identified directly at the nanoscale. The polarization-induced charge distribution across the homogeneous heterostructural interfaces is proposed as a viable alternative approach towards charge tailoring in semiconductor nanostructures.

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