Hot electron transfer in Zn-Ag-In-Te nanocrystal-methyl viologen complexes enhanced with higher-energy photon excitation.

Tatsuya KameyamaKouta SugiuraSusumu KuwabataTomoki OkuhataNaoto TamaiTsukasa Torimoto

Published in: RSC advances (2020)

The dynamics of hot electron transfer from Zn-Ag-In-Te (ZAITe) nanocrystals (NCs) to adsorbed methyl viologen (MV 2+ ) were investigated by transient absorption spectroscopy. The bleaching of the exciton peak in the ZAITe NC-MV 2+ complexes evolved faster than that of ZAITe NCs. The hot electron transfer efficiency increased from 45% to 72% with increasing excitation photon energy.

Keyphrases

electron transfer
energy transfer
quantum dots
heavy metals
living cells
high resolution
highly efficient
hydrogen peroxide
single molecule
room temperature
visible light
cerebral ischemia
atomic force microscopy
risk assessment
fluorescent probe
mass spectrometry
ionic liquid