Enhancing luminescence in lanthanide coordination polymers through dilution of emissive centers

Jeffrey D. Einkauf; Kelly L. Rue; Heather A. Ten Hoeve; Daniel T. de Lill

doi:10.1016/j.jlumin.2018.01.045

Enhancing luminescence in lanthanide coordination polymers through dilution of emissive centers

Jeffrey D. Einkauf, Kelly L. Rue, Heather A. Ten Hoeve, Daniel T. de Lill

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

11 Scopus citations

Abstract

A Ln-adipate metal-organic framework templated with 4,4′-bipyridine (GWMOF-6) was synthesized with Eu(III) or Tb(III) ions with various concentrations of optically inert Gd(III) ion in order to evaluate the effects of diluting the emissive metal center on the efficiency of luminescence. The doping ratios of Ln:Gd (Ln = Eu or Tb) showed that of the ratios studied, the 50:50 system had among the highest quantum yields (Eu = 3.9%, Tb = 7.6%) with increasing lifetimes as Gd(III) concentration increased. A 50:50 Eu:Tb system was also synthesized and showed to be more efficient than the Eu:Gd systems (Φ = 15.3%), with an exceptionally high energy transfer efficiency (80%) from the ⁵D₄ state of the Tb(III) ion to the ⁵D₁ and ⁵D₀ energy levels of the Eu(III) ion.

Original language	English
Pages (from-to)	412-417
Number of pages	6
Journal	Journal of Luminescence
Volume	197
DOIs	https://doi.org/10.1016/j.jlumin.2018.01.045
State	Published - May 2018
Externally published	Yes

Funding

The authors would like to thank Florida Atlantic University Department of Chemistry & Biochemistry for funding.

Funders	Funder number
Florida Atlantic University Department of Chemistry & Biochemistry

Keywords

Antenna effect
Coordination polymer
Doping
Lanthanide

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10.1016/j.jlumin.2018.01.045

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title = "Enhancing luminescence in lanthanide coordination polymers through dilution of emissive centers",

abstract = "A Ln-adipate metal-organic framework templated with 4,4′-bipyridine (GWMOF-6) was synthesized with Eu(III) or Tb(III) ions with various concentrations of optically inert Gd(III) ion in order to evaluate the effects of diluting the emissive metal center on the efficiency of luminescence. The doping ratios of Ln:Gd (Ln = Eu or Tb) showed that of the ratios studied, the 50:50 system had among the highest quantum yields (Eu = 3.9%, Tb = 7.6%) with increasing lifetimes as Gd(III) concentration increased. A 50:50 Eu:Tb system was also synthesized and showed to be more efficient than the Eu:Gd systems (Φ = 15.3%), with an exceptionally high energy transfer efficiency (80%) from the 5D4 state of the Tb(III) ion to the 5D1 and 5D0 energy levels of the Eu(III) ion.",

keywords = "Antenna effect, Coordination polymer, Doping, Lanthanide",

author = "Einkauf, {Jeffrey D.} and Rue, {Kelly L.} and {Ten Hoeve}, {Heather A.} and {de Lill}, {Daniel T.}",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

month = may,

doi = "10.1016/j.jlumin.2018.01.045",

language = "English",

volume = "197",

pages = "412--417",

journal = "Journal of Luminescence",

issn = "0022-2313",

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TY - JOUR

T1 - Enhancing luminescence in lanthanide coordination polymers through dilution of emissive centers

AU - Einkauf, Jeffrey D.

AU - Rue, Kelly L.

AU - Ten Hoeve, Heather A.

AU - de Lill, Daniel T.

PY - 2018/5

Y1 - 2018/5

N2 - A Ln-adipate metal-organic framework templated with 4,4′-bipyridine (GWMOF-6) was synthesized with Eu(III) or Tb(III) ions with various concentrations of optically inert Gd(III) ion in order to evaluate the effects of diluting the emissive metal center on the efficiency of luminescence. The doping ratios of Ln:Gd (Ln = Eu or Tb) showed that of the ratios studied, the 50:50 system had among the highest quantum yields (Eu = 3.9%, Tb = 7.6%) with increasing lifetimes as Gd(III) concentration increased. A 50:50 Eu:Tb system was also synthesized and showed to be more efficient than the Eu:Gd systems (Φ = 15.3%), with an exceptionally high energy transfer efficiency (80%) from the 5D4 state of the Tb(III) ion to the 5D1 and 5D0 energy levels of the Eu(III) ion.

AB - A Ln-adipate metal-organic framework templated with 4,4′-bipyridine (GWMOF-6) was synthesized with Eu(III) or Tb(III) ions with various concentrations of optically inert Gd(III) ion in order to evaluate the effects of diluting the emissive metal center on the efficiency of luminescence. The doping ratios of Ln:Gd (Ln = Eu or Tb) showed that of the ratios studied, the 50:50 system had among the highest quantum yields (Eu = 3.9%, Tb = 7.6%) with increasing lifetimes as Gd(III) concentration increased. A 50:50 Eu:Tb system was also synthesized and showed to be more efficient than the Eu:Gd systems (Φ = 15.3%), with an exceptionally high energy transfer efficiency (80%) from the 5D4 state of the Tb(III) ion to the 5D1 and 5D0 energy levels of the Eu(III) ion.

KW - Antenna effect

KW - Coordination polymer

KW - Doping

KW - Lanthanide

UR - http://www.scopus.com/inward/record.url?scp=85041898565&partnerID=8YFLogxK

U2 - 10.1016/j.jlumin.2018.01.045

DO - 10.1016/j.jlumin.2018.01.045

M3 - Article

AN - SCOPUS:85041898565

SN - 0022-2313

VL - 197

SP - 412

EP - 417

JO - Journal of Luminescence

JF - Journal of Luminescence

ER -

Enhancing luminescence in lanthanide coordination polymers through dilution of emissive centers

Abstract

Funding

Keywords

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