@article{Wu2015, 
author = {Shiting Wu and Enzheng Shi and Yanbing Yang and Wenjing Xu and Xinyang Li and Anyuan Cao},
title = {Direct fabrication of carbon nanotube-graphene hybrid films by a blown bubble method},
year = {2015},
journal = {Nano Research},
volume = {8},
number = {5},
pages = {1746-1754},
keywords = {graphene, solar cell, carbon nanotube, hybrid structure, blown bubble assembly},
url = {https://www.sciopen.com/article/10.1007/s12274-014-0679-5},
doi = {10.1007/s12274-014-0679-5},
abstract = {Hybridization of carbon nanotubes (CNT) with graphene provides a promising means of integrating the attributes of both materials, thereby enabling widespread application. Here, we present a method to directly assemble hybrid CNT-graphene films by a blown bubble method combined with selective substrate annealing. We use polymethylmethacrylate (PMMA) as the polymeric matrix to blow bubbles containing self-assembled multi-walled CNT arrays, and then transform the bubble film into a CNT-graphene hybrid film by thermal annealing on a Cu substrate; PMMA serves as the carbon source for growing single to few-layer graphene among the CNT network until a continuously hybridized structure is formed. Compared to the bare (non-hybridized) CNT networks, the hybrid films exhibit improved electrical conductivity and structural integrity. Our method also enables the fabrication of a multi-walled CNT-Si solar cell, which has high power conversion efficiency, through the assembly of hybrid CNT-graphene structures.}
}