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首页> 外文期刊>Physica status solidi, B. Basic research >Resonance enhancement of photoluminescence from silicon nanocrystallites
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Resonance enhancement of photoluminescence from silicon nanocrystallites

机译:硅纳米晶体的光致发光共振增强

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摘要

An interaction of molecular oxygen and p-Si nanocrystallitesin IIF–ethanolic solution with simultaneous illumination hasbeen investigated. It is shown that after such treatment withwhite-light exposure the photoluminescence from nanocrys-tallites enhances substantially caused by photogeneratedsinglet forms of molecular oxygen. In the case of mono-chromatic illumination with photon energy in the range 2.5-0.95 eV dependence of photoluminescence intensity af-ter the treatment on photon energy used shows resonant peakscorresponding to the absorbance peaks of excited molecularoxygen. To our knowledge such photoluminescence peaks inporous silicon spectroscopy have been observed for the firsttime
机译:已经研究了分子氧和IIF-乙醇溶液中的p-Si纳米晶体在同时照射下的相互作用。已经表明,在用白光曝光进行这种处理之后,来自纳米晶体-沸石的光致发光基本上由光生单分子形式的分子氧引起的增强。在光子能量在2.5-0.95 eV范围内的光子能量依赖性的单色照明之后,对所用光子能量的处理显示出与激发的分子氧的吸收峰相对应的共振峰。据我们所知,这种光致发光峰是在硅光谱中首次观察到的。

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