Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 14, Issue 15, Pages 5255-5259Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2cp40279c
Keywords
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Funding
- National Research Foundation of Korea [NRF-2011-0000997]
- Korea Center for the Artificial Photosynthesis [NRF-2011-0030278]
- WCU (World Class University) [R-31-2008-000-10055-0]
- Priority Research Centers Program [NRF-2009-0094041]
- National Research Foundation [NRF-R0A-2007-000-20029-0, NRF-20110027698, 20110025897]
- hydrogen RD Center
- Seoul R BD program
- Ministry of Education, Science and Technology (MEST)
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Here, we find that doping sp(2) selective nitrogen, N sp(2), into carbon nanotube (CNT) channels induces a positive shift in the Fermi level of TiO2 photoelectrodes. It is found that this results in the large diffusion coefficient of solar driven electrons for increasing the photocurrent as well as in the low recombination rate for improving open circuit voltage with 0.74 V, which could not be overcome by using pristine CNT channels with 0.66 V.
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