@article{Zhang2021, 
author = {Chi Zhang and Jing Ning and Boyu Wang and Haibin Guo and Xin Feng and Xue Shen and Yanqing Jia and Jianguo Dong and Dong Wang and Jincheng Zhang and Yue Hao},
title = {Hybridized 1T/2H-MoS2/graphene fishnet tube for high-performance on-chip integrated micro-systems comprising supercapacitors and gas sensors},
year = {2021},
journal = {Nano Research},
volume = {14},
number = {1},
pages = {114-121},
keywords = {gas sensor, supercapacitor, multifunctional system, integrate, 1T/2H-MoS2},
url = {https://www.sciopen.com/article/10.1007/s12274-020-3052-x},
doi = {10.1007/s12274-020-3052-x},
abstract = {The emerging micro-nano-processing technologies have propelled significant advances in multifunctional systems that can perform multiple functions within a small volume through integration. Herein, we present an on-chip multifunctional system based on a 1T/2H-MoS2/graphene fishnet tube, where a micro-supercapacitor and a gas sensor are integrated. A hybrid three-dimensional stereo nanostructure, including MoS2 nanosheets and graphene fishnet tubes, provides K+ ions with a short diffusion pathway and more active sites. Owing to the large layer spacing of 1T-MoS2 promoting fast reversible diffusion, the on-chip micro-supercapacitor exhibits excellent electrochemical properties, including an areal capacitance of 0.1 F·cm-2 (1 mV·s-1). The variation in the conductivity of 2H-MoS2 when ammonia molecules are adsorbed as derived from the first-principles calculations proves the Fermi level-changes theory. Driven by a micro-supercapacitor, the responsivity of the gas sensor can reach 55.7% at room temperature (27 °C). The multifunctional system demonstrates the possibility of achieving a two-dimensional integrated system for wearable devices and wireless sensor networks in the future.}
}