Spectroscopy of carbon nanotube synthesis processes

该项目的目的是实施腔增强拉曼光谱（CERS）的气相分析和检测的主要前体在浮动催化剂化学气相沉积（FCCVD）工艺连续碳纳米管（CNT）的合成。当前的目标是实现用于光信号的反馈锁定放大器，以增强拉曼散射信号的输出。在等待可行性阶段的结果之前，诊断将被扩展以使用非反应流和反应流来实现它。或者，该项目将寻求与FCCVD/CNT合成相关的其他类型的诊断，包括原位粒子散射和激光诱导荧光。

The aims of the project are to implement Cavity-Enhanced Raman Spectroscopy (CERS) for gas phase analysis and detection of main precursors in Floating Catalyst Chemical Vapour Deposition (FCCVD) process for continuous Carbon Nanotube (CNT) synthesis. The immediate goals are to implement a feedback lock-in amplifier for the optical signal to enhance the output of the Raman scattered signal. Pending the outcome of a feasibility phase, the diagnostic will be expanded to implement it with the non-reacting, and then reacting flows. Alternatively, the project will pursue other types of diagnostics relevant to the FCCVD/CNT synthesis, including in-situ particle scattering and laser induced fluorescence.