Luminescent hybrid films obtained by covalent grafting of terbium complex to silica network

Fengyi Liu; Lianshe Fu; Jun Wang; Ze Liu; Huanrong Li; Hongjie Zhang

doi:10.1016/S0040-6090(02)00734-4

Luminescent hybrid films obtained by covalent grafting of terbium complex to silica network

Fengyi Liu, Lianshe Fu, Jun Wang, Ze Liu, Huanrong Li, Hongjie Zhang

CAS - Changchun Institute of Applied Chemistry

Research output: Contribution to journal › Article › peer-review

64 Scopus citations

Abstract

Luminescent hybrid thin films consisting of terbium complex covalently bonded to a silica-based network have been obtained in situ via a sol-gel approach. A new monomer, N-(4-benzoic acid-yl), N′-(propyltriethoxysilyl)urea (PABI), has been synthesized by grafting isocyanatopropyltriethoxysilane (ICPTES) to p-aminobenzoic acid and characterized by ¹H NMR, IR and MS. The monomer acts as a ligand for Tb³⁺ ion and as a sol-gel precursor. Band emission from Tb³⁺ ion due to an efficient ligand-to-metal energy transfer was observed by UV excitation. The decay curves of Tb³⁺ in the hybrid films were measured. The energy difference between the triplet state energy of PABI and the ⁵D₄ level of Tb³⁺ ion falls in the exciting range to sensitize Tb³⁺ ion fluorescence.

Original language	English
Pages (from-to)	178-182
Number of pages	5
Journal	Thin Solid Films
Volume	419
Issue number	1-2
DOIs	https://doi.org/10.1016/S0040-6090(02)00734-4
State	Published - 1 Nov 2002
Externally published	Yes

Keywords

Hybrid materials
Luminescence
Sol-gel

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10.1016/S0040-6090(02)00734-4

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title = "Luminescent hybrid films obtained by covalent grafting of terbium complex to silica network",

abstract = "Luminescent hybrid thin films consisting of terbium complex covalently bonded to a silica-based network have been obtained in situ via a sol-gel approach. A new monomer, N-(4-benzoic acid-yl), N′-(propyltriethoxysilyl)urea (PABI), has been synthesized by grafting isocyanatopropyltriethoxysilane (ICPTES) to p-aminobenzoic acid and characterized by 1H NMR, IR and MS. The monomer acts as a ligand for Tb3+ ion and as a sol-gel precursor. Band emission from Tb3+ ion due to an efficient ligand-to-metal energy transfer was observed by UV excitation. The decay curves of Tb3+ in the hybrid films were measured. The energy difference between the triplet state energy of PABI and the 5D4 level of Tb3+ ion falls in the exciting range to sensitize Tb3+ ion fluorescence.",

keywords = "Hybrid materials, Luminescence, Sol-gel",

author = "Fengyi Liu and Lianshe Fu and Jun Wang and Ze Liu and Huanrong Li and Hongjie Zhang",

year = "2002",

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doi = "10.1016/S0040-6090(02)00734-4",

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T1 - Luminescent hybrid films obtained by covalent grafting of terbium complex to silica network

AU - Liu, Fengyi

AU - Fu, Lianshe

AU - Wang, Jun

AU - Liu, Ze

AU - Li, Huanrong

AU - Zhang, Hongjie

PY - 2002/11/1

Y1 - 2002/11/1

N2 - Luminescent hybrid thin films consisting of terbium complex covalently bonded to a silica-based network have been obtained in situ via a sol-gel approach. A new monomer, N-(4-benzoic acid-yl), N′-(propyltriethoxysilyl)urea (PABI), has been synthesized by grafting isocyanatopropyltriethoxysilane (ICPTES) to p-aminobenzoic acid and characterized by 1H NMR, IR and MS. The monomer acts as a ligand for Tb3+ ion and as a sol-gel precursor. Band emission from Tb3+ ion due to an efficient ligand-to-metal energy transfer was observed by UV excitation. The decay curves of Tb3+ in the hybrid films were measured. The energy difference between the triplet state energy of PABI and the 5D4 level of Tb3+ ion falls in the exciting range to sensitize Tb3+ ion fluorescence.

AB - Luminescent hybrid thin films consisting of terbium complex covalently bonded to a silica-based network have been obtained in situ via a sol-gel approach. A new monomer, N-(4-benzoic acid-yl), N′-(propyltriethoxysilyl)urea (PABI), has been synthesized by grafting isocyanatopropyltriethoxysilane (ICPTES) to p-aminobenzoic acid and characterized by 1H NMR, IR and MS. The monomer acts as a ligand for Tb3+ ion and as a sol-gel precursor. Band emission from Tb3+ ion due to an efficient ligand-to-metal energy transfer was observed by UV excitation. The decay curves of Tb3+ in the hybrid films were measured. The energy difference between the triplet state energy of PABI and the 5D4 level of Tb3+ ion falls in the exciting range to sensitize Tb3+ ion fluorescence.

KW - Hybrid materials

KW - Luminescence

KW - Sol-gel

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U2 - 10.1016/S0040-6090(02)00734-4

DO - 10.1016/S0040-6090(02)00734-4

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JO - Thin Solid Films

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IS - 1-2

ER -

Luminescent hybrid films obtained by covalent grafting of terbium complex to silica network

Abstract

Keywords

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