A quantitative single-nanowire study on the plasmonic enhancement for the upconversion photoluminescence of rare-earth-doped nanoparticles

Abstract

The local surface plasmon resonance (LSPR) modulation represents a promising way for enhancing the upconversion photoluminescence (UCPL). The study on the coupling mechanism of LSPR and UCPL is of great...

Double local electromagnetic fields collaboratively enhanced triplet–triplet annihilation upconversion for efficient photocatalysis

“…The photonic band gap (PBG) and metal surface plasmon resonance effects are two kinds of important strategies to regulate the local electromagnetic field for improving the upconversion quantum yield. [17][18][19][20][21] The photonic crystals with distinct PBG properties can control the propagation of the photons, which has been proven to effectively improve the spontaneous radiation rate of rare-earth upconversion materials. [22][23][24] Additionally, the surface plasmons of noble metal nanoparticles can localize the incident light on a nanostructure surface, generating a localized surface plasmon resonance (LSPR) to form a strong local electromagnetic field in the subwavelength region.…”