Journal
APPLIED SURFACE SCIENCE
Volume 389, Issue -, Pages 1076-1083Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2016.08.038
Keywords
g-C3N4; Film; Thiourea; Photocurrent; Heterojunction
Categories
Funding
- National Natural Science Foundation of China (NSFC) [11304406, 61307035, 51502111]
Ask authors/readers for more resources
We report on a convenient CVD fabrication of the uniform, compact and reproducible g-C3N4 solid films on indium-tin oxide substrates. It is found that mixing quantitative thiourea into melamine as co-precursor prompts the deposition of greenish-yellow, transparent and smooth g-C(3)N(4)thin films. The thiourea apparently affects the crystalline, the surface morphologies and the energy band structures of g-C3N4 films by modulating the polymerization process of the precursors, and simultaneously introduces S dopants into the g-C3N4 films. Due to these roles of thiourea, the obtained S-doped g-C3N4 films as a photoelectrode show a high and stable visible-light-driven photocurrent response. To further improve the photocurrent, the construction of three heterojunction structure types based on g-C3N4 films is proposed and the corresponding charge transfer mechanisms are well discussed. The successful fabrication of high quality g-C3N4 films in this work provides a footstone to construct the heterojunction film structures based on the carbon nitrides for the photoelectrochemical overall water splitting. (C) 2016 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available