Article ID Journal Published Year Pages File Type
1666066 Thin Solid Films 2013 4 Pages PDF
Abstract

•Li-doped ZnO/ZnO p–n bilayers are grown on F-doped SnO2 by pulsed laser deposition.•The bilayers exhibit a typical rectifying characteristic of p–n heterojunctions.•Formation of homojunctions greatly enhanced the ZnO photovoltaic response.

(002)-Preferred orientation ZnO and Li-doped ZnO thin films on glass substrates and Li-doped ZnO/ZnO bilayers on fluorine-doped SnO2 glass substrates are grown by pulsed laser deposition technique. These films are characterized by X-ray diffraction, UV–visible transmission spectroscopy, surface photovoltage spectroscopy, and electric measurements. The optical transmittance of Li-doped ZnO/ZnO bilayers is about 86%. The bilayer grown on FTO glass substrates exhibits a typical rectifying characteristic of p–n heterojunctions. In addition, the photovoltaic response of ZnO is blue-shifted from 380 to 363 nm and greatly enhanced resulting from the formation of p–n homojunctions based on ZnO.

Related Topics
Physical Sciences and Engineering Materials Science Nanotechnology
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