Surface Plasmon Excitation via Au Nanoparticles in CdSe Semiconductor

Journal Article · Thu Oct 23 00:00:00 EDT 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3027158· OSTI ID:21251596

Pradhan, A K ^[1]; Konda, R B; Mundle, R; Mustafa, H; Bamiduro, O ^[1]; Roy, U N; Cui, Y ^[2]; Burger, A ^[2]

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1. Department of Engineering Norfolk State University, 700 Park Avenue, Norfolk, VA 23504 (United States)
2. Department of Physics, Fisk University, 1000, 17 Avenue North, Nashville, TN 37208 (United States)

We present experimental evidence for the large Raman and photoluminescence enhancement in CdSe semiconductor films grown on Si and glass substrates due to excitation of surface plasmon resonances in proximate gold metal nanoparticles deposited on the surface of CdSe film. Heterojunction diodes containing n-CdSe on p-Si semiconductor were fabricated and the surface of the diodes was in situ coated with Au nanoparticles using the ultra-high vacuum pulsed-laser deposition technique. A significant enhancement of the photocurrent was obtained in CdSe/p-Si containing Au nanoparticles on the surface compared to CdSe/p-Si due to the enhanced photo-absorption within the semiconductor by the phenomenon of surface plasmon resonance. These observations suggest a variety of approaches for improving the performance of devices such as photodetectors, photovoltaic, and related devices, including biosensors.

• OSTI ID: 21251596
• Journal Information: AIP Conference Proceedings, Vol. 1063, Issue 1; Conference: IWMNMM-2008: International workshop on mesoscopic, nanoscopic and macroscopic materials, Bhubaneswar (India), 2-4 Jan 2008; Other Information: DOI: 10.1063/1.3027158; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
36 MATERIALS SCIENCE
ABSORPTION
CADMIUM SELENIDES
ENERGY BEAM DEPOSITION
GLASS
GOLD
HETEROJUNCTIONS
LASER RADIATION
NANOSTRUCTURES
OPTICAL PROPERTIES
PARTICLES
PHOTODETECTORS
PHOTOLUMINESCENCE
PHOTOVOLTAIC EFFECT
PLASMONS
PULSED IRRADIATION
RESONANCE
SEMICONDUCTOR MATERIALS
SILICON
SUBSTRATES