DOI: 10.1039/d6cp01712f ISSN: 1463-9076

Direct observation of opposite migration of photo-generated electrons and holes along the [001] direction in wurtzite ZnO

Xiao Du, Rujia Xie, Qi Luo, Jiaoyang Qu, Zhaotie Liu, Bin Liu, Heqing Yang

ZnO photocurrent originates from charge separation driven by the polar superstructure's spontaneous field. Direct observation of opposite electron/hole migration along [001] reveals this pathway.

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