Determination of the superradiance coherence length of directly linked linear porphyrin arrays at the single-molecule level.
Down to the wire: Photobleaching dynamics show the exciton delocalization length of directly linked porphyrin arrays (see picture) to be about four or five porphyrin units at the single-molecule level. This result provides a better understanding of how light-signal transmission occurs in the solid state and gives a perspective for the porphyrin arrays to be used as single-molecule photonic wires.
Department of Chemistry and Spectroscopy Laboratory for Functional pi-Electronic Systems, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul 120-749, Korea.
Jaesung
J
Yang
Hyejin
H
Yoo
Naoki
N
Aratani
Atsuhiro
A
Osuka
Dongho
D
Kim