journal article·2015-11-01Open access

Plasmon mediated cathodic photocurrent generation in sol-gel synthesized doped SrTiO3 nanofilms

Ramu Pasupathi Sugavaneshwar, Kai Chen, Gandham Lakshminarayana, Satoshi Ishii, Thang Duy Dao, Naoto Umezawa, Tadaaki Nagao

APL Materials· Volume 3· Issue 11

Abstract

Thin films of SrTiO3 (STO) and Rh-doped SrTiO3 (Rh-STO) were synthesized by sol-gel method and loaded with Ag nanoparticles. Pristine STO films exhibited anodic photocurrent while Rh-STO exhibited cathodic photocurrent. An enhancement in the overall cathodic photocurrent is observed with Ag nanoparticle loading and an additional enhancement in the visible light range is seen from the incident photon-to-current efficiency spectrum due to synergetic effect of Rh doping and Ag loading in STO.
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Research context

OpenAlex topics: Advanced Photocatalysis Techniques · TiO2 Photocatalysis and Solar Cells · Electronic and Structural Properties of Oxides

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

National Institute for Materials Science (NIMS) 1 International Center for Materials Nanoarchitectonics (MANA), , 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan

CREST, Japan Science and Technology Agency 2 , 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan

National Institute for Materials Science (NIMS) 3 Catalytic Materials Group, Environmental Remediation Materials Unit, , 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan

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