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arXiv 0904.2971physics.opticscond-mat.mtrl-sci
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热解氮化硼的光致发光特性

Photoluminescence properties of pyrolytic boron nitride

Luc Museur, Andrei Kanaev

摘要:

采用时间分辨和能量分辨的光致发光方法对热解六方氮化硼(pBN)进行了光谱研究.高纯度的pBN样品(尽管结晶度低)允许关于发光过程中涉及的激发态的互补信息。我们肯定了我们最近的结论,在微晶hBN的大部分荧光带的杂质相关的性质。此外,一个宽带中心在3.7 eV以前没有考虑,因为它的叠加与强烈的结构化杂质发射是由于深DAP的辐射复合。

英文摘要:

We report on spectroscopic study of pyrolytic hBN (pBN) by means of time- and energy- resolved photoluminescence methods. A high purity of pBN samples (though low crystallinity) allows complementary information about excited states involved into the luminescence process. We affirm our recent conclusions about the impurity-related nature of most of the fluorescence bands in microcrystalline hBN. In addition, a broad band centred at 3.7 eV previously not considered because of its superposition with an intense structured impurity emission is attributed to the radiative recombination of deep DAPs.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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