Share Email Print

Journal of Photonics for Energy

Ambiance-dependent agglomeration and surface-enhanced Raman spectroscopy response of self-assembled silver nanoparticles for plasmonic photovoltaic devices
Author(s): Jephias Gwamuri; Ragavendran Venkatesan; Mehdi Sadatgol; Jeyanthinath Mayandi; Durdu O. Guney; Joshua M. Pearce
Format Member Price Non-Member Price
PDF $20.00 $25.00

Paper Abstract

The agglomeration/dewetting process of thin silver films provides a scalable method of obtaining self-assembled nanoparticles (SANPs) for plasmonics-based thin-film solar photovoltaic (PV) devices. We show the effect of annealing ambiance on silver SANP average size, particle/cluster finite shape, substrate area coverage/particle distribution, and how these physical parameters influence optical properties and surface-enhanced Raman scattering (SERS) responses of SANPs. Statistical analysis performed indicates that generally Ag SANPs processed in the presence of a gas (argon and nitrogen) ambiance tend to have smaller average size particles compared to those processed under vacuum. Optical properties are observed to be highly dependent on particle size, separation distance, and finite shape. The greatest SERS enhancement was observed for the argon-processed samples. There is a correlation between simulation and experimental data that indicate argon-processed AgNPs have a great potential to enhance light coupling when integrated to thin-film PV.

Paper Details

Date Published: 20 September 2017
PDF: 12 pages
J. Photon. Energy 7(3) 037002 doi: 10.1117/1.JPE.7.037002
Published in: Journal of Photonics for Energy Volume 7, Issue 3
Show Author Affiliations
Jephias Gwamuri, Michigan Technological Univ. (United States)
National Univ. of Science and Technology (Zimbabwe)
Ragavendran Venkatesan, Madurai Kamaraj Univ. (India)
Mehdi Sadatgol, Michigan Technological Univ. (United States)
Jeyanthinath Mayandi, Madurai Kamaraj Univ. (India)
Durdu O. Guney, Michigan Technological Univ. (United States)
Joshua M. Pearce, Michigan Technological Univ (United States)

© SPIE. Terms of Use
Back to Top