Hybrid Nanostructured Porous Silicon-Silver Layers for Wideband Optical Absorption

Raúl J. Martín-Palma, Patrick D. McAtee, Rehab Ramadan, Akhlesh Lakhtakia

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

As subwavelength nanostructures are receiving increasing attention for photonic and plasmonic applications, we grew nanostructured porous silicon (n-PS) and hybrid n-PS/Ag layers onto silicon substrates and measured their reflection and absorption characteristics as functions of the wavelength, angle of incidence, and polarization state of incident light. The experimental results show that the absorption characteristics of the hybrid n-PS/Ag layer can be controlled by selecting the appropriate combination of its thickness and porosity, together with the density of infiltrant silver nanoparticles. The observed wideband optical absorption characteristics of the hybrid n-PS/Ag layers might be useful in light-harvesting devices and photodetectors, since the overall efficiency will be increased as a result of increased field-of-view for both s- and p-polarization states of incident light.

Original languageEnglish (US)
Article number7291
JournalScientific reports
Volume9
Issue number1
DOIs
StatePublished - Dec 1 2019

All Science Journal Classification (ASJC) codes

  • General

Fingerprint Dive into the research topics of 'Hybrid Nanostructured Porous Silicon-Silver Layers for Wideband Optical Absorption'. Together they form a unique fingerprint.

  • Cite this