Carbon‐doped fused silica glass is fabricated by consolidating zinc stearate‐doped porous silica soot blank. The carbon doping concentration is tunable and a maximum of ~0.3 wt% carbon can be incorporated into densified silica. Carbon dopants assemble into nanorod structures which are uniformly distributed inside glass. Transmission electron microscopy electron energy loss spectroscopy and Raman studies identify that carbon dopants are a mixture of nanosized silicon carbide and multiple layer graphene, which produce strong and flat optical absorption in a wide wavelength range of 400‐2500 nm. The electrical resistivity of silica glass is reduced by about 15 orders of magnitude with 0.28 wt% carbon doping.

中文翻译：

---

碳掺杂石英玻璃

碳掺杂熔融石英玻璃是通过将掺杂硬脂酸锌的多孔二氧化硅烟灰坯料固结而制成的。碳掺杂浓度是可调节的，并且最大〜0.3 wt％的碳可以掺入致密化的二氧化硅中。碳掺杂剂组装成均匀分布在玻璃内部的纳米棒结构。透射电子显微镜的电子能量损失光谱和拉曼研究表明，碳掺杂剂是纳米碳化硅和多层石墨烯的混合物，它们在400-2500 nm的宽波长范围内产生强而平坦的光吸收。掺碳量为0.28 wt％时，石英玻璃的电阻率降低了约15个数量级。