Open AccessPlasmonic Hot Carrier Transfer Modulated Room–Temperature Visible Light Emission of Cu2O–Au Nanowires
Author(s) -
Kai Li,
Xiuge Zhao,
Yongchu Fang,
Yu Tao
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1575/1/012162
Subject(s) - nanowire , materials science , plasmon , nanoparticle , excitation , excited state , fluorescence , optoelectronics , visible spectrum , nanotechnology , photochemistry , chemistry , optics , atomic physics , physics , engineering , electrical engineering
Cu 2 O nanowires decorated with Au nanoparticles (Cu 2 O–Au NWs) were synthesized by a facile solution method. Due to light excited plasmonic hot carrier transfer from Au nanoparticles into Cu 2 O nanowires, under 360 and 420 nm light excitation, the fluorescence emissions of Cu 2 O–Au NWs, compared with that of Cu 2 O nanowires, were enhanced 4.03 and 3.35 times, respectively. The decay time of Cu 2 O–Au NWs is 4.85 times longer than that of Cu 2 O NWs under 337 nm light excitation. The results indicate that hot carrier transfer can effectively modulate the optical properties of Cu 2 O NWs.