AI Article Synopsis
- The study explores the use of platinum (Pt) nanoparticles for enhancing ultraviolet (UV) emitters by creating hole-patterns in the AlGaN layer to improve penetration.
- The Pt nanoparticles, sized under 50 nm, were successfully annealed at 600 °C, resulting in average sizes of 10 nm, 20 nm, and 25 nm, and showed effective absorption at a wavelength of 365 nm.
- The results indicate that the electroluminescence intensity of the surface plasmon (SP)-enhanced UV emitter is 70% greater than that of a typical UV emitter, due to better coupling between excitons in multiple quantum wells and the Pt nanoparticles.
Article Abstract
We demonstrate the surface plasmon (SP)-enhanced ultraviolet (UV) emitter using Pt nanoparticles (NPs). The UV emitter is hole-patterned on the AlGaN layer to consider the penetration depth of Pt NPs. The Pt NPs with sizes under 50 nm are required to realize the plasmonic absorption in UV wavelength. In this study, we confirm the average Pt NP sizes of 10 nm, 20 nm, and 25 nm, respectively, at an annealing temperature of 600 °C. The absorption of annealed Pt NPs is covered with the 365-nm wavelength. The electroluminescence intensity of SP-UV is 70% higher than that of reference UV emitter without hole-patterns and Pt NPs. This improvement can be attributed to the increase of spontaneous emission rate through resonance coupling between the excitons in multiple quantum wells and Pt NPs deposited on the -AlGaN layer.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6722722 | PMC |
| http://dx.doi.org/10.3390/mi10080528 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!