Localized surface plasmon resonance of degenerate semiconducting nanocrystal ensembles with various shape distributions

Rueben J. Mendelsberg

doi:10.1117/12.931096

15 October 2012 Localized surface plasmon resonance of degenerate semiconducting nanocrystal ensembles with various shape distributions

Rueben J. Mendelsberg

Author Affiliations +

Proceedings Volume 8456, Nanophotonic Materials IX; 845602 (2012) https://doi.org/10.1117/12.931096
Event: SPIE NanoScience + Engineering, 2012, San Diego, California, United States

Abstract

Nanocrystals of degenerate semiconductors come in a variety of shapes, which have profound influence on the localized surface plasmons which are supported. Ensembles of such nanocrystals are never perfect and will always show a distribution of shapes. By embedding the Drude model into Mie scattering theory, the effect of the shape inhomogeneity on the absorbance spectrum of a nanocrystal ensemble can be approximated for a few common cases such as nanorods and nanodiscs as well as general ellipsoids. Using various distributions of aspect ratios, broadening and shifting of the various plasmonic absorption peaks is observed for nanorod and nanodisc ensembles. Similar behavior is also observed for ensembles of nearly spherical nanocrystals, which emphasizes the importance of accounting for nanocrystal shape inhomogeneity when investigating broadening mechanisms of nanocrystal plasmonic absorbance.

Citation Download Citation

Rueben J. Mendelsberg "Localized surface plasmon resonance of degenerate semiconducting nanocrystal ensembles with various shape distributions", Proc. SPIE 8456, Nanophotonic Materials IX, 845602 (15 October 2012); https://doi.org/10.1117/12.931096

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available