Journal
NANOMATERIALS
Volume 9, Issue 8, Pages -Publisher
MDPI
DOI: 10.3390/nano9081083
Keywords
Amorphous SnS2 film; Atomic layer deposition; Photoelectrochemical performance; Deposition temperature; Thickness; Photoelectron separation
Categories
Funding
- Korea Institute of Energy Technology Evaluation and Planning (KETEP) - Korea government (MOTIE) [20173010012940]
- National Research Lab program of the National Research Foundation of Korea (NRF) [2018R1A2A1A05023126]
- Korea Evaluation Institute of Industrial Technology (KEIT) [20173010012940] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2018R1A2A1A05023126] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Ask authors/readers for more resources
Two-dimensional (2D) nanomaterials have distinct optical and electrical properties owing to their unique structures. In this study, smooth 2D amorphous tin disulfide (SnS2) films were fabricated by atomic layer deposition (ALD), and applied for the first time to photoelectrochemical water splitting. The optimal stable photocurrent density of the 50-nm-thick amorphous SnS2 film fabricated at 140 degrees C was 51.5 mu A/cm(2) at an oxygen evolution reaction (0.8 V vs. saturated calomel electrode (SCE)). This value is better than those of most polycrystalline SnS2 films reported in recent years. These results are attributed mainly to adjustable optical band gap in the range of 2.80 to 2.52 eV, precise control of the film thickness at the nanoscale, and the close contact between the prepared SnS2 film and substrate. Subsequently, the photoelectron separation mechanisms of the amorphous, monocrystalline, and polycrystalline SnS2 films are discussed. Considering above advantages, the ALD amorphous SnS2 film can be designed and fabricated according to the application requirements.
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