Deposition, Characterization, and Thin-Film-Based Chemical Sensing of Ultra-long Chemically Synthesized Graphene Nanoribbons
Deposition, Characterization, and Thin-Film-Based Chemical Sensing of Ultra-long Chemically Synthesized Graphene Nanoribbons
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DOI：
10.1021/ja502764d
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发表时间：
2014-05-28
影响因子：
15
通讯作者：
Zhou, Chongwu
中科院分区：
文献类型：
--
作者：
Abbas, Ahmad N.;Liu, Gang;Zhou, Chongwu
由于石墨烯纳米带边缘结构清晰，均匀性高，自下而上合成石墨烯纳米带是将其应用于电子和传感领域的重要一步。近年来，利用各种化学合成技术制备了具有可变长度和边缘结构的结构完善的gnr。然而，GNR沉积、表征、电子特性和应用等问题尚未得到充分探讨。在这里，我们报告了超长化学合成gnr薄膜的沉积，表征和器件制造的优化条件。此外，我们已经证明了卓越的NO2气体灵敏度的GNR薄膜器件低至十亿分之一（ppb）的水平。研究结果为化学合成GNRs在未来电子和传感领域的应用奠定了基础。
Bottom-up synthesis of graphene nanoribbons (GNRs) is an essential step toward utilizing them in electronic and sensing applications due to their defined edge structure and high uniformity. Recently, structurally perfect GNRs with variable lengths and edge structures were created using various chemical synthesis techniques. Nonetheless, issues like GNR deposition, characterization, electronic properties, and applications are not fully explored. Here we report optimized conditions for deposition, characterization, and device fabrication of individual and thin films of ultra-long chemically synthesized GNRs. Moreover, we have demonstrated exceptional NO2 gas sensitivity of the GNR film devices down to parts per billion (ppb) levels. The results lay the foundation for using chemically synthesized GNRs for future electronic and sensing applications.