Developing rare-earth free metal-oxide plasmonic hybrid structures for wavelength conversion and near-infraed photoelectric transfer

2017 Fiscal Year Annual Research Report

• Project/Area Number: 16K17496
• Research Institution: National Institute for Materials Science
• Principal Investigator: シンデ サティッシュラクスマン 国立研究開発法人物質・材料研究機構, 国際ナノアーキテクトニクス研究拠点, ポスドク研究員 (00771354)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Keywords: Wavelength conversion / Plasmonic antenna / Wide band gap materials / Oxides / Defects

Outline of Annual Research Achievements

In fiscal year 2017, we have completed the set target to optimize the defects in oxides and examine the wavelength conversion and demonstration of a “plasmon-mediated photoelectric transfer”. With suitable combinations of plasmonic metal (TiN/Au) and oxides/nitrides (GeO2/C3N4), we demonstrated the near IR light induced photocurrent generation and photocatalytic chemical reactions for water splitting. On plasmonic nano-antenna (TiN/Au nano pillars fabricated by colloidal lithography), we deposited Ge (sputter deposition) and annealed in oxygen deficient condition to optimize the defects. The defects are studied by XPS and Raman spectroscopy. The optimized GeO2/Ge/TiN/Si structure examine for the wavelength conversion and photoluminescence enhancement. The defect-mediated broad-band NIR upconversion is still under investigations. We have also successfully demonstrated the NIR light induced sub-band gap photocurrent generation in TiN/Ge and TiN-C3N4-C dots composite for UV-VIS-NIR responsive photocatalytic chemical reactions. The work on optimization of defects in GeO2/Ge pyramids structure, NIR light induced photocurrent generation and TiN/carbon nitride composite have been presented in various conferences/meetings (S. L. Shinde et. al. IUMRS-ICAM, Aug. 2017; ISSS-8, Oct. 2017; MANA International Symposium, March 2018) and published in peer reviewed journals (S. L. Shinde et. al. ACS Photonics 2017 (4), 1722, ACS applied materials & interfaces 2018 (10), 2460).

Research Products

• [Journal Article] Enhanced Solar Light Absorption and Photoelectrochemical Conversion Using TiN Nanoparticle-Incorporated C3N4-C Dot Sheets (2018)
  • Author(s): Satish Laxman Shinde, Satoshi Ishii, Thang Duy Dao, Ramu Pasupathi Sugavaneshwar, Toshiaki Takei, Karuna Kar Nanda, Tadaaki Nagao
  • Journal Title: ACS applied materials & interfaces Volume: 10 Pages: 2460-2468
  • DOI: 10.1021/acsami.7b15066
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] White Light Emission from Black Germanium (2017)
  • Author(s): Satish Laxman Shinde, Thang Duy Dao, Satoshi Ishii, Li-Wei Nien, Karuna Kar Nanda, Tadaaki Nagao
  • Journal Title: ACS Photonics Volume: 4 Pages: 1722-1729
  • DOI: 10.1021/acsphotonics.7b00214
  • Peer Reviewed / Int'l Joint Research
• [Presentation] Sub-bandgap Photodetection from Germanium/Titanium Nitride Heterostructure (2018)
  • Author(s): Satish Laxman Shinde, Satoshi Ishii, Tadaaki Nagao
  • Organizer: MANA International Symposium, Tsukuba, Japan
  • Int'l Joint Research
• [Presentation] Enhanced visible-light emission from Quantum dots sensitized GeO2/Ge perfect absorptive hetero-nano pyramids (2017)
  • Author(s): Satish Laxman Shinde, Thang Duy Dao, Satoshi Ishii, Li-Wei Nien, Karuna Kar Nanda, Tadaaki Nagao
  • Organizer: IUMRS-ICAM, Yoshida Campus, Kyoto, Japan
  • Int'l Joint Research
• [Presentation] Quantum Dots Mediated Enhanced Visible-light Emission from Black Germanium (2017)
  • Author(s): Satish Laxman Shinde, Thang Duy Dao, Satoshi Ishii, Tadaaki Nagao
  • Organizer: ISSS-8, Tsukuba International Congress Center, Tsukuba, Japan
  • Int'l Joint Research
• [Book] Materials Nanoarchitectonics (2018)
  • Author(s): Satoshi Ishii, Kai Chen, Ramu P Sugavaneshwar, Hideo Okuyama, Thang D Dao, Satish L Shinde, Manpreet Kaur, Masahiro Kitajima, Tadaaki Nagao
  • Total Pages: 13
  • Publisher: Wiley‐VCH Verlag GmbH & Co. KGaA
  • ISBN: 9783527808311