Related Experiment Video
Updated: Jul 4, 2026
08:19
Synthesis, Characterization, and Functionalization of Hybrid Au/CdS and Au/ZnS Core/Shell Nanoparticles
Published on: March 2, 2016
Surface plasmon resonance in CdSe semiconductor coated with gold nanoparticles
A K Pradhan1, R B Konda, H Mustafa
1Center for Materials Research, Norfolk State University, 700 Park Avenue, Norfolk, VA 23504, USA. apradhan@nsu.edu
Optics Express
|June 12, 2008
Summary
Gold nanoparticles enhance the light emission and Raman signals of cadmium selenide (CdSe) semiconductor films. This surface plasmon resonance effect improves performance for devices like solar cells and biosensors.
Area of Science:
- Materials Science
- Nanotechnology
- Solid State Physics
Background:
- Cadmium selenide (CdSe) is a semiconductor with applications in optoelectronics.
- Surface plasmon resonance (SPR) in metal nanoparticles can enhance light-matter interactions.
Purpose of the Study:
- To investigate the effect of gold nanoparticles on the optical properties of CdSe semiconductor films.
- To explore the potential for enhancing device performance using SPR.
Main Methods:
- Growth of CdSe semiconductor films on glass substrates.
- Deposition of 10 nm gold (Au) nanoparticles onto CdSe films using pulsed-laser deposition.
Main Results:
- Significant enhancement in Raman intensity of CdSe films observed.
- Increased photoluminescence of CdSe semiconductor films demonstrated.
- Enhancement attributed to the excitation of surface plasmon resonances in gold nanoparticles.
Conclusions:
- Gold nanoparticles effectively enhance the optical properties of CdSe films through SPR.
- This approach offers potential for improving photodetectors, photovoltaics, and biosensors.
