The detection of laser-induced structural change of MnO2 using in situ Raman spectroscopy combined with self-modeling curve resolution technique.
The detection of laser-induced structural change of MnO2 using in situ Raman spectroscopy combined with self-modeling curve resolution technique.
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DOI：
10.1016/j.aca.2007.01.008
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发表时间：
2007-03
影响因子：
6.2
通讯作者：
E. Widjaja;J. Sampanthar
中科院分区：
文献类型：
--
作者：
E. Widjaja;J. Sampanthar
在本文中，我们提出了使用的自建模曲线分辨率技术，带靶熵最小化（BTEM），这是独立于任何光谱库，阐明拉曼纯组分光谱的两种不同的锰氧化物所产生的激光诱导结构变化。在不将MnO 2改变为另一种结构形式的情况下，通常很难获得MnO 2的纯拉曼光谱。然而，使用BTEM来分析收集的原位拉曼光谱测量作为激光曝光时间的函数，使我们能够获得原始样品和由于激光照射的产物的纯组分光谱。该技术被证明是一种有效的拉曼光谱解释方法的热敏固体样品。
In this paper, we present the use of one of the self-modeling curve resolution techniques, band-target entropy minimization (BTEM), which is independent of any spectral library, to elucidate Raman pure component spectra of two different manganese oxides arising from laser-induced structural changes. It is often extremely difficult to obtain the pure Raman spectrum of MnO2without changing it to another structural form. However, using BTEM to analyze the collected in situ Raman spectra measured as a function of laser exposure time, has enabled us to obtain both the pure component spectra of the original sample and the product due to laser irradiation. This technique proves to be an efficient Raman spectral interpretation method for thermal sensitive solid samples.