Exploiting the LSPR effect for an enhanced photocatalytic hydrogen evolution reaction

Abstract

Incorporation of plasmonic metals into semiconductors are probably the most efficient strategy for improving their photocatalytic hydrogen evolution reaction (HER) activity. This article summarizes recent advances in the development of...

Multiphoton emission of single CdZnSe/ZnS quantum dots coupled with plasmonic Au nanoparticles

“…Plasmon modulation of the photon emission in semiconductor quantum dots (QDs) has received widespread attention for their potential application in photovoltaics, photocatalysts, bioimaging, and optoelectronics. [1][2][3][4][5] Plasmonic metal nanostructures are often used to control the photon behaviors of QDs. The emission intensity and exciton recombination rate can be increased due to the interaction between QDs and the local field of metal nanostructures.…”

Plasmon-induced hot carrier distribution in a composite nanosystem: role of the adsorption site

“…This understanding has recently opened the door to the development of LSPR-facilitated photocatalysis techniques that offer precise control of spatio-temporal dynamics of chemical reactions. [40][41][42][43][44][45][46][47] Acquiring a comprehensive understanding of the mechanisms governing the creation and distribution of HCs is vital for advancing our knowledge of chemical reactions in LSPRfacilitated photocatalysis. Broadly speaking, relying solely on experimental methods has limitations due to time constraints and the complex nature of decoding multifaceted contributions.…”

Synergizing plasmonic Au nanocages with 2D MoS2 nanosheets for significant enhancement in photocatalytic hydrogen evolution

“…The working mechanisms of LSPR-enhanced photocatalysis are quite complicated due to several possible concurrent ones including hot-electron transfer (HET), near-eld enhancement (NFE) and plasmon resonant energy transfer (PRET). [17][18][19][20][21] Besides, as metal materials, plasmonic metal species can also accept photogenerated electrons from a semiconductor through a classic electron transfer pathway, which makes the process even more complex.…”

“…For PRET, the energy can be transferred from plasmonic metal species to semiconductors to generate excited electrons through nonradiative dipole-dipole coupling between the plasmonic dipole and electron-hole exciton in semiconductors. 20,21 Like NFE, no direct contact between the metal and semiconductor is required for PRET, but the energy transfer efficiency highly depends on the spectrum overlap between the plasmonic metal and semiconductor and the special distance between the two parts. 18,[20][21][22] Additionally, it has a reverse and competing process called Förster resonant energy transfer (FRET), where energy will transfer from the semiconductor to the plasmonic metal.…”

“…As the metal species are coupled with a semiconductor, LSPR-induced hot electrons can be injected into the conduction band of the semiconductor that is in contact with the metal, which is a nonradiative process. 17–21…”