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中文摘要：
分子振动谱广泛应用于化合物分子结构的测定、未知物的鉴定以及混合物成分的分析,是传感识别物质性质和特征的重要指纹。提出了基于石墨烯带阵列的分子振动谱传感模型,并采用数值仿真方法对模型进行了验证。结果表明,通过调节石墨烯带的化学势、阵列周期以及占空比,可以灵活地调控石墨烯带阵列的透射带宽;通过在检测区填充物质,发现透射谱的形状与被检测物的分子吸收谱一致,表明该传感器能够识别物质分子的振动指纹;透射谱的形状对检测区域填充物质的厚度不敏感,传感器的稳健性好。
英文摘要：
Molecular vibration spectrum is an important fingerprint for the identification of material properties and characteristics, which has been widely used to determine molecular structure, identify unknown com-pounds and analyze hybrid components. A molecular vibration spectroscopy sensor based on the graphene nanoribbon arrays is presented, and validated by numerical simulation. The results show that the transmission bandwidth of the graphene nanoribbon arrays can be flexibly controlled via tuning the chemical potential, period and duty ratio. The transmission coefficient of the sensor is consistent with the corresponding absorption spectrum after deposition of sample substance in the detected zone, which allows for the identification of molecular fingerprint. Moreover, the sensor has good robustness since the envelope of the transmission coefficient is independent on the thickness of the deposited sample substance.
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