Fine structure in photoluminescence spectrum of S2− center in sodalite
Fine structure in photoluminescence spectrum of S2− center in sodalite
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DOI：
10.1007/s00269-007-0161-y
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发表时间：
2007-06
影响因子：
1.4
通讯作者：
Aierken Sidike;Alifu Sawuti;Xiangfei Wang;Hengjiang Zhu;S. Kobayashi;I. Kusachi;N. Yamashita
中科院分区：
文献类型：
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作者：
Aierken Sidike;Alifu Sawuti;Xiangfei Wang;Hengjiang Zhu;S. Kobayashi;I. Kusachi;N. Yamashita
详细观测了来自格陵兰、加拿大和新疆(中国)的方钠石在300K和10K下的光致发光和激发光谱。这些方钠石的橙黄色荧光的发射光谱和激发光谱的特征与所在地区无关。300K和10K的发射光谱由一系列峰的宽带组成，最大峰分别位于648K和645.9 nm。通过监测300℃和10℃下的橙黄色荧光获得的激发光谱由一个主带组成，峰值位于392 nm。新疆纯方钠石经热处理后的发光效率约为未处理天然方钠石的7倍。方钠石中S2−中心在10℃时的发射光谱由一个具有清晰分辨结构的带组成，该带中的一系列极大值间隔约560 cm−1(20-25 nm)。在10℃时，每个窄带都显示出一种精细结构，由32S_(34)S-−的伸缩振动引起的一个小峰、32S_2-−的一个主峰和主峰的声子边带组成。
The photoluminescence and excitation spectra of sodalites from Greenland, Canada and Xinjiang (China) are observed at 300 and 10 K in detail. The features of the emission and excitation spectra of the orange-yellow fluorescence of these sodalites are independent of the locality. The emission spectra at 300 and 10 K consist of a broad band with a series of peaks and a maximum peak at 648 and 645.9 nm, respectively. The excitation spectra obtained by monitoring the orange-yellow fluorescence at 300 and 10 K consist of a main band with a peak at 392 nm. The luminescence efficiency of the heat-treated sodalite from Xinjiang is about seven times as high as that of untreated natural sodalite. The emission spectrum of the S2−center in sodalite at 10 K consists of a band with a clearly resolved structure with a series of maxima spaced about 560 cm−1(20–25 nm) apart. Each narrow band at 10 K shows a fine structure consisting of a small peak due to the stretching vibration of the isotopic species of32S34S−, a main peak due to that of the isotopic species of32S2−and five peaks due to phonon sidebands of the main peak.