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Cathodoluminescence and photoluminescence of amorphous silicon oxynitride

机译:非晶态氮氧化硅的阴极发光和光致发光

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摘要

The cathodoluminescence and photoluminescence of amorphous silicon oxynitride (a-SiO_xN_y) films with differnt compositions were measured for the first time in the near infrared to visible-ultraviolet range.The red band with energy at 1.8-1.9 eV, ultravilet bands with energies 3.1,3.4-3.6,4.4-4.7, and 5.4 eV were observed in a-SiO_xN_y. The 1.8-1.9 eV band is attributed to th eoxygen adn nitrogen atoms with unpaired electrons and the 2.7 eV band is attributed to twofold coordinated silicon atoms with two electrons. The 5.4 eV shoulder is due to the peroxy radicals and other ultraviolet bands are supoposed to be due to the Si-Si bonds.
机译:首次在近红外到可见紫外范围内测量了组成不同的非晶态氮氧化硅(a-SiO_xN_y)膜的阴极发光和光致发光。红色带的能量为1.8-1.9 eV,紫外带的能量为3.1,在a-SiO_xN_y中观察到3.4-3.6、4.4-4.7和5.4eV。 1.8-1.9 eV谱带归因于具有不成对电子的氧和氮原子,而2.7 eV谱带归因于具有两个电子的双配位硅原子。 5.4 eV的肩峰是由于过氧自由基引起的,而其他紫外线带被认为是由于Si-Si键引起的。

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