Abstract

Polar ZnO single crystals were microstructured in a controlled fashion by electrochemical etching. Surfaces with pyramids and inversed pyramids on oxygen and zinc faces, respectively, were received. Photoluminescence spectra of bulk and anodized ZnO samples were investigated at room and low temperatures. Cathodoluminescence images were also recorded from areas with different structures. A significant enhancement of light emission of the prepared microstructures was achieved after anodization. This allows to use such microstructures in light emitting devices and solar cells.

中文翻译：

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阳极氧化极性ZnO晶体的增强发射性能

摘要

极性ZnO单晶通过电化学蚀刻以受控方式进行微结构化。分别接收到在氧气和锌面上带有金字塔形和倒金字塔形的表面。在室温和低温下研究了块状和阳极氧化的ZnO样品的光致发光光谱。还从具有不同结构的区域记录了阴极发光图像。在阳极氧化之后，所制备的微结构的发光显着增强。这允许在发光器件和太阳能电池中使用这样的微结构。