Indexed by: Journal paper

Journal: AIP Advances

Affiliation of Author(s): 光电学院，国家光电研究中心

Place of Publication: 美国

Discipline: Engineering

Funded by: 自然科学基金

Document Type: J

Volume: 5

Issue: 9

Page Number: 097169

Key Words: 无

DOI number: 10.1063/1.4931948

Date of Publication: 2015-03-28

Teaching and Research Group: c716

Abstract: We report internal quantum efficiency enhancement of thin p-GaN green quantumwell structure using self-assembled Ag nanoparticles. Temperature dependent photoluminescence measurements are conducted to determine the internal quantum efficiency. The impact of excitation power density on the enhancement factor is investigated. We obtain an internal quantum efficiency enhancement by a factor of 2.3 at 756 W/cm2 , and a factor of 8.1 at 1 W/cm2 . A Purcell enhancement up to a factor of 26 is estimated by fitting the experimental results to a theoretical model for the efficiency enhancement factor. C 2015 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.

Note: 无

Links to published journals: http://dx.doi.org/10.1063/1.4931948