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Photo-induced reorganization of molecular packing of amphi-PIC J-aggregates (single J-aggregate spectroscopy) by Yu.V. Malyukin; A.V. Sorokin; S.L. Yefimova; A.N. Lebedenko is a Materials Science article available to read on EtoBox.

What is Photo-induced reorganization of molecular packing of amphi-PIC J-aggregates (single J-aggregate spectroscopy) about?

Confocal luminescence microscopy has been used to excite and collect luminescence from single amphi-PIC Jaggregate. Two types of J-aggregates have been revealed in the luminescence image: bead-like J-aggregates, which diameter is less than 1 mm and rod-like ones, which length is about 3 mm and diameter is less than 1 mm. It has been found that single rod-like and bead-like J-aggregates exhibit different luminescence bands with different decay parameters. At the off-resonance blue tail excitation, the J-aggregate exciton luminescence disappeared within a certain time period and a new band appeared, which cannot be attributed to the monomer emission. The luminescence image shows that the J-aggregate is not destroyed. However, J-aggregate storage in darkness does not recover its exciton luminescence.

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Author

Yu.V. Malyukin; A.V. Sorokin; S.L. Yefimova; A.N. Lebedenko

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0022-2313)

Published

2005

Language

EN

Field

Materials Science (Physical Sciences)