4.8 Article

Gold cluster-nanoparticle diad systems for plasmonic enhancement of photosensitization

Journal

NANOSCALE
Volume 5, Issue 17, Pages 7855-7860

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c3nr02420b

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Funding

  1. R&D on Innovative PV Power Generation Technology which The University of Tokyo
  2. New Energy and Industrial Technology Development Organization (NEDO)
  3. KAKENHI from MEXT, Japan [22710100]
  4. JSPS
  5. Grants-in-Aid for Scientific Research [22710100, 11J09522] Funding Source: KAKEN

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Quantum-sized gold clusters are deposited on TiO2 both as a photosensitizer and catalyst, and coupled to plasmonic gold nanoparticles as a light harvesting antenna. Photocurrent enhancement was observed for Au-25(SG)(18) and Au-38(SG)(24) but not for Au-102(SG)(44) (SG = glutathione). The maximum enhancement factor of similar to 9 is reached at 900 nm.

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