TY - JOUR
T1 - Reduction of photocurrents from modified electrodes with Cd1-XMnxS nanoparticles in the presence of magnetic fields
AU - Yonemura, H.
AU - Yoshida, M.
AU - Yamada, S.
N1 - Funding Information:
The authors wish to thank Mr. H. Horiuchi, in preparing the three-electrode photoelectrochemical cells. The present study was financially supported by KAWASAKI STEEL 21st Century, Shinkagakuhatten, and the Murata Science Foundations and by the following Grant-in-Aid for Scientific Research: Priority Area of “Electrochemistry of Ordered Interfaces” (No.l 1118257), and Encouragement of Young Scientists (No. 12750737).
PY - 2001
Y1 - 2001
N2 - Modified electrodes with diluted magnetic semiconductor nanoparticles (Q-Cd1-XMnXS) were fabricated by immobilizing them on a self-assembled monolayer of hexanedithiol prepared on the Au electrode. Photoirradiation of the Q-Cd1-XMnXS-modified electrode in the presence of triethanolamine afforded stable anodic photocurrents. In the presence of external magnetic fields, larger reduction (∼8%) of photocurrent from the Q-Cd1-XMnXS-modified electrode was observed as compared with that from a cadmium sulfide nanoparticles (Q-CdS). This magnetic field effect is most likely ascribed to the quantum size effect (quantum confinement effect) and exchange effects in the exciton states due to Mn2+ ions in Q-Cd1-XMnXS.
AB - Modified electrodes with diluted magnetic semiconductor nanoparticles (Q-Cd1-XMnXS) were fabricated by immobilizing them on a self-assembled monolayer of hexanedithiol prepared on the Au electrode. Photoirradiation of the Q-Cd1-XMnXS-modified electrode in the presence of triethanolamine afforded stable anodic photocurrents. In the presence of external magnetic fields, larger reduction (∼8%) of photocurrent from the Q-Cd1-XMnXS-modified electrode was observed as compared with that from a cadmium sulfide nanoparticles (Q-CdS). This magnetic field effect is most likely ascribed to the quantum size effect (quantum confinement effect) and exchange effects in the exciton states due to Mn2+ ions in Q-Cd1-XMnXS.
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U2 - 10.1016/s0167-2991(01)82192-3
DO - 10.1016/s0167-2991(01)82192-3
M3 - Article
AN - SCOPUS:0035787249
SN - 0167-2991
VL - 132
SP - 741
EP - 744
JO - Studies in Surface Science and Catalysis
JF - Studies in Surface Science and Catalysis
ER -