Anomalous heavy atom effect on optical limiting property of homoleptic double-decked sandwich-type lanthanide diphthalocyanines

Citation
X. Wang et al., Anomalous heavy atom effect on optical limiting property of homoleptic double-decked sandwich-type lanthanide diphthalocyanines, OPT COMMUN, 197(1-3), 2001, pp. 83-87
Citations number
25
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
OPTICS COMMUNICATIONS
ISSN journal
0030-4018 → ACNP
Volume
197
Issue
1-3
Year of publication
2001
Pages
83 - 87
Database
ISI
SICI code
0030-4018(20010915)197:1-3<83:AHAEOO>2.0.ZU;2-3
Abstract
Optical limiting (OL) performance of two homoleptic sandwich-type lanthanid e diphthalocyanines. M[Pc(OC5H11)(8)](2) (M = Gd, Eu). was investigated via fluence-dependent transmittance measurements. The measurements were perfor med using collimated 10-ns pulses generated from a frequency-doubled Nd:YAG laser at 532-nm wavelength. The results indicated that Eu[Pc(OC5H11)(8)](2 ) exhibited better OL performance than Gd[Pc(OC5H11)(8)](2), which seems to be contrary to the heavy atom effect because the gadolinium ion is heavier than europium ion. A possible explanation was proposed that, not only the atomic number but also the ion radius of the metal center would influence t he OL performance of metal diphthalocyanines. (C) 2001 Elsevier Science B.V . All rights reserved.