Optical properties of nanodiamond suspensions
Optical properties of nanodiamond suspensions
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纳米金刚石悬浮液的光学性质
DOI：
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发表时间：
2011
期刊：
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通讯作者：
K. Reich
中科院分区：
文献类型：
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作者：
K. Reich
计算了纳米金刚石悬浮液的光学性质。主要的假设是，由于表面重构，纳米金刚石表面形成了碳二聚体，在许多方面类似于块状金刚石表面的Pandey链（2 × 1）。所有实验观察到的纳米金刚石悬浮液的吸收特征都在这些思想的基础上得到了解释。金刚石核不吸收可见光光谱范围内的光，而金刚石核表面的二聚体吸收整个光学波长范围内的光。此外，它们的吸收光谱在接近1.5和5 eV的能量处有两个特征。
The optical properties of nanodiamond suspensions have been calculated. The main supposition is that carbon dimers, which in many aspects are analogous to Pandey chains (2 × 1) on the surface of bulk diamond, are formed on the surface of nanodiamonds due to the surface reconstruction. All experimentally observed features of the absorption of nanodiamond suspensions have been explained on the basis of these ideas. Whereas the diamond nucleus does not absorb light in the visible spectral range, dimers on the surface of the diamond core absorb light in the entire range of optical wavelengths. In addition, there are two features at energies close to 1.5 and 5 eV in their absorption spectrum.