【摘要】 对具有变色效应的两颗变色龙金刚石与一颗鲜黄色合成金刚石进行了扫描电镜能谱、X射线荧光光谱、显微红外光谱、紫外可见吸收光谱、光致发光谱、电子顺磁共振谱等测试研究,以探讨引起金刚石变色的原因。结果表明:变色的主要原因是浅色心的产生与湮灭;样品晶格中存在镍、钴离子;杂质离子的存在有利于形成各种浅色心。更多还原

【Abstract】 Polarized microscopy, SEM-EDS, XRF, UV-VIS, PL, FTIR, EPR have been used in this study to investigate two chameleon diamonds and a synthetic diamond which show color-change effects. The result showed: the main cause of color change is the formation and annihilation of shallow color centers; there exist nickel and cobalt ions in the samples’lattice; and the impurity ions contribute a lot to the formation of shallow color centers.更多还原