分子扶手椅石墨烯纳米带气体探测器的建模与仿真

IF 1.1 Q4 OPTICS Optics continuum Pub Date : 2023-06-23 DOI:10.1364/optcon.486370
Alireza Tashakori, A. Rostami, M. M. Karkhanehchi
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引用次数: 0

摘要

光学探测器是利用光学技术进行气体检测的关键。本研究介绍了一种扶手椅式石墨烯纳米带(AGNR)分子光学气体检测器,该检测器具有两个共轭分子元件和一个非共轭界面,用于光学气体检测。探测器吸收光并在电流-电压曲线中产生与气体浓度和拉曼频谱相对应的峰值。该检测器具有由输入光频率控制的负电阻,适用于高频振荡器。多种气体可以同时识别和监测使用探测器。该检测器采用非平衡格林函数法进行分析,具有高速、准确的选择性、精确的气体检测和多电输出重现性。
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Modeling and simulation of molecular armchair graphene nanoribbons as a gas detector
Optical detectors are essential for gas detection using optical technology. This study introduces an armchair graphene nanoribbon (AGNR) molecular optical gas detector with two conjugated molecular elements and a non-conjugated interface for gas detection using optical technology. The detector absorbs light and generates peaks in the current-voltage curve that correspond to gas concentration and the Raman frequency spectrum. The detector exhibits negative resistances controlled by input light frequency, suitable for high-frequency oscillators. Multiple gases can be simultaneously identified and monitored using the detector. The detector was analyzed using the non-equilibrium Green function method and offers high-speed, accurate selectivity, precise gas detection, and reproducibility with multiple electrical outputs.
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