大学生创新创业训练计划项目结题报告
10微升和5微升丙酮溶液时的比较，滴加量多时电信号持续的时间明显加长。测试了暴露面积以及遮盖不同位置下，大面积二维结构超薄纳米材料的化学分子驱动自供电传感器件的电流以及电压随时间变化规律，获得了最优化的聚合物遮盖层材料种类以及遮盖位置和暴露面积等器件关键设计。在此基础之上，获得基于二维超薄结构纳米材料的化学分子驱动自供电传感器件的最优化制作工艺。
此外，通过正负极（源极漏极）倒转连接等方式，重复测试了大面积二维结构超薄纳米材料化学分子驱动自供电传感器件的电流以及电压随时间变化规律，获得了预期的形状相似但方向相反的电流电压信号，如图8（d）所示为氧化石墨烯器件正负极（源极漏极）倒转后滴加二氯甲烷的电流电压随时间的变化曲线，结合直接采用二氧化硅介质层作为功能单元制作的器件测试结果，证明了在滴加极性有机液体后产生的电流电压信号非偶然发生，而是由于化学有机溶液分子驱动作用下，石墨烯以及二维超薄纳米材料等功能层产生的必然规律性信号。
4 结论
本项目采用化学气相沉积法制备了超薄二维半导体纳米材料（石墨烯），并
研究了超薄二维半导体纳米材料的成分、微观结构、形貌和光电性能。我们选择了生长质量良好的超薄二维半导体纳米片，经过一系列的工艺，制备了化学分子驱动的超薄二维半导体纳米材料自供电传感器件，测试了其基本电学性能。在获得化学分子驱动传感器基本电学性能的基础之上，测试了不同化学有机溶液作用下，大面积石墨烯和二维结构超薄纳米材料的化学分子驱动自供电传感器件的输出电学性能。
5 展望
本课题对化学分子驱动自供电传感器件性能进行了初步研究，证实二维超薄材料纳米传感器件在极性分子作用下能够产生稳定持续的电能，为解决微纳电子器件的微电源的维护和替换难题提供了新的思路。因此，希望有越来越多的人来研究制备自供电传感器件，也希望能对自供电传感器件的其他性能进行探究。相信随着纳米科技的发展，自供电传感器件作为一种优秀的纳米功能器件，具有非常广阔的前景。
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大学生创新创业训练计划项目结题报告
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大学生创新创业训练计划项目结题报告
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