Article ID Journal Published Year Pages File Type
5368442 Applied Surface Science 2007 4 Pages PDF
Abstract

We have synthesized cone-like GeO2 structures via thermal heating of Ge powders. We have investigated the effects of substrate temperature on the sample morphology, revealing that cone-shaped structures are preferentially obtained at higher temperature. The cone-shaped structures, which gradually become thinner to form a sharp tip, appear to be a single-crystalline, hexagonal structure of GeO2. Room-temperature photoluminescence measurement revealed two emission peaks, at about 2.78 and 3.04 eV.

Related Topics
Physical Sciences and Engineering Chemistry Physical and Theoretical Chemistry
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