FTIR spectral characteristics of natural diamonds with yellow fluorescence viewed under DiamondView~(TM)
DiamondView~(TM)下呈黄色荧光的天然钻石的FTIR光谱特征
作者: LIU PeijunWANG JuanXU LiqiangSHAO HuipingLIU JinhuaLIU XiaoboYAN JunZhejiang Fangyuan Test Group Co.,Lt.dWenzhou Institute of Science and Technology, Zhejiang University of TechnologyCollege of Mechanical Engineering, Beihua University
刊名: Journal of Anqing Normal University(Natural Science Edition), 2017(04), pp.30-35
中文刊名: 安庆师范大学学报(自然科学版), 2017(04), pp.30-35
来源数据库: CJFDTEMP_U
DOI: CNKI:SUN:AQSX.0.2017-04-009
关键词: Natural diamondyellow fluorescencespectral characteristicformation mechanismdouble nitrogenirradiation
中文关键词: 天然钻石黄色荧光光谱特征形成机制双氮辐照
英文摘要: The formation mechanism of yellow fluorescence for natural diamonds viewed under DiamondView~(TM) are systematic investigated by Fourier transform infrared spectra(FTIR) combined with DiamondView~(TM) and UV-Vis-NIR absorption spectra. The results show that most of diamonds with yellow fluorescence or partly yellow fluorescence have an infrared absorption peak at 1 282 cm~(-1) namely A center. It is deduced that the yellow fluorescence derived from the N_2 optical center in the diamond lattice. Furthermore, a few of diamonds with yellow fluorescence have not the 1 282 cm ~(-1) absorption perk, but existed 1 450 cm~(-1) in their corresponding FTIR spectra or 741 nm in their corresponding UV-Vis absorption ones. The yellow fluorescence observed in the DiamondView~(TM) can be produced by...
中文摘要: 利用傅里叶变换红外(FTIR)光谱结合钻石观测仪(DiamondView~(TM))、紫外-可见(UV-Vis)吸收光谱对在DiamondView~(TM)下呈现黄色荧光的天然钻石进行较系统的研究。结果表明:绝大多数在DiamondView~(TM)下呈现单一黄色或部分黄色荧光的天然钻石,其FTIR光谱中一般在1 282 cm~(-1)处有较强的吸收峰,因此,初步认为该类钻石晶格中的双N(N_2)即A中心是钻石呈现黄色荧光的形成机制之一。但同时发现少数荧光呈现黄色的钻石的FTIR谱图中缺失1282 cm~(-1)处的吸收,且对应样品的FTIR光谱中存在1 450 cm~(-1),处或UV-Vis吸收光谱中存在741nm的特征吸收,即该类钻石的黄色荧光可能是辐照所致。
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关键词翻译
关键词翻译
  • TM FTIR光谱