Fabrication, Characterization, and Optimization of Carbon-Based Phototransistors Using Graphene Oxide Nanoribbons

The synthesis of controllable graphene oxide nanoribbons and their phototransistors will be investigated in this study. From experimental viewpoint, we plan to use the microwave-assisted process to fabricate graphene nanoribbons from multiwalled carbon nanotubes. (ACS Nano 2011, 5(10), 7788.) We will further prepare the graphene nanoribbons with tunable C/O ratios, unzipping level, length, and pores. After the analyses of all kinds of nanoribbons, the coworkers at NCHU and NDL will help us develop the micro-/nano-scale phototransistors. TKU collaborators will use our nanoribbons for the operando X-ray spectroscopy experiments at NSRRC. From the theoretical viewpoint, the coworkers at NTU and we will target the excited state calculations using time-dependent density functional theory. Besides our experiences in carbon nanotube, graphene and graphene nanoribbon in early publications, (Prog. Mater. Sci. 2013, 58, 565.; Biosens. Bioelectron. 2015, 67, 327.; Biosens. Bioelectron. 2015, 67, 431.; Nano Energy 2016, 27, 114.; Angew Chem. Int. Ed. 2017, 56(52), 16498.) we already have some results which can prove this proposal is doable as well as valuable. It is believed that we must be able to contribute to the development of nanoribbon-based phototransistors with significant research achievement and publications.

Project ID:PB10708-1770
External Project ID:MOST107-2221-E182-032