Development of Photoelectrochemical Devices Based on Graphene Oxide Nanoribbons

The synthesis of controllable graphene oxide nanoribbons and their photoelectrochemical micro/nano-devices will be studied for biosensor applications. From experimental viewpoint, we plan to use the microwave-assisted process to improve the yield of graphene nanoribbons derived from the unzipping of multiwalled carbon nanotubes. (D. V. Kosynkin et al. Nature 2009, 458, 16.) Besides tuning the C/O rations, unzipping level, length, pores, we will further fabricate the N-doped graphene nanoribbons through the low-temperature process. After the analyses of all kinds of nanoribbons, we will carry out the photoelectrochemical measurements using nanoribbon working electrodes at CGU. On the other hand, the coworkers at NCHU and NDL will help us develop the micro-/nanoscale solution gate photoelectrochemical transistors for biosensor applications. 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 newly-developed method in addition to the traditional time-dependent density functional theory. Besides our experiences in carbon nanotube, graphene and graphene nanoribbon in early publications, (Biosens. Bioelectron. 2011, 26, 3450.; ACS Nano 2011, 5(10), 7788.; Prog. Mater. Sci. 2013, 58, 565.; Biosens. Bioelectron. 67, 327 (2015).; Nano Energy 2016, 27, 114.) 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 photoelectrochemical devices for biosensor applications with significant research achievement and publications.

Project ID:PB10608-3664
External Project ID:MOST106-2221-E182-054