An intra-Nd3+ visible to infrared conversion process in hybrid xerogels

被引：17

作者：

Carlos, LD ^{[1
]}

Ferreira, RAS

Bermudez, VD

机构：

[1] Univ Aveiro, Dept Fis, P-3810 Aveiro, Portugal

[2] Univ Tras Montes & Alto Douro, Seccao Quim, P-5001 Quinta De Prados, Vila Real Codex, Portugal

来源：

ELECTROCHIMICA ACTA | 2000年 / 45卷 / 8-9期

关键词：

organic/inorganic hybrids; neodymium (III); luminescence;

D O I：

10.1016/S0013-4686(99)00374-6

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The luminescence spectra of a series of Nd3+ -based hybrid xerogels were reported. The organic/inorganic matrix, classed as di-ureasils, is a siliceous network to which short polyether-based chains are grafted by means of urea bridges. The luminescent centers were incorporated as neodymium triflate. These multi-wavelength phosphors present a broad green-blue emission band associated with the hybrid backbone and a series of infrared emissions which were assigned to the F-4(3/2)--> I-4(9/2-13/2) intra-4f(3) lines. The visible emission spectra provides strong evidence for the existence of an unusually intra-Nd3+ conversion process of visible light in infrared luminescence. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：1555 / 1560

页数：6

共 33 条

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