Efficient green OLEDs achieved by a terbium(III) complex with photoluminescent quantum yield close to 100%

Zhao, Zifeng; Bian, Mengying; Lin, Chenjian; Fu, Xuzheng; Yu, Gang; Wei, Huibo; Liu, Zhiwei; Bian, Zuqiang; Huang, Chunhui

doi:10.1007/s11426-021-1036-0

Cited by 9 publications

(7 citation statements)

References 26 publications

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“…Compared to the other trivalent lanthanide ions Tb 3+ is highly luminescent, with reported quantum yields often exceeding 50%. [21][22][23][24] Additionally, the green emission allows for easy detection on standardized instruments. However, extracting useful information from the spectra is complicated by the number of individual electronic energy levels in the lowest Russel-Saunders term ( 7 F6, 13 electronic states) and main emissive term ( 5 D4, 9 electronic states).…”

Section: Introductionmentioning

confidence: 99%

Tb3+ Photophysics: Mapping the radiative and non-radiative transition probabilities of [Tb(H2O)9]3+ using molecular photophysics

Kofod

Sørensen

2022

Preprint

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The study of optical transitions in lanthanides has evolved separately from molecular photophysics. However, the forbidden transitions can be accurately described using the framework developed in molecular photophysics. In this study, a detailed photophysical characterization of the [Tb(H2O)9]3+ aqua ion was performed. The luminescence quantum yield (Φlum), excited state lifetime (τ), radiative (kr ≡ A) and non-radiative (knr) rate constant and oscillator strength (f) was determined for Tb(CF3SO3)3 in H2O/D2O mixtures in order to map the radiative and non-radiative transition probabilities. It was shown that the intense luminescence observed from Tb3+ compared to other Ln3+ is not due to a higher radiative transition probability but rather due to a lack of quenching, quantified by a contribution to knr from O-H oscillators in the aqua ion of kq(OH) = 2090 s-1 for terbium and kq(OH) = 8840 s-1 for europium. Further, the Horrocks method of determining inner-sphere solvent molecules has been revisited, and it was concluded that the coordination number of Tb3+ in aqueous solution is 9.

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Section: Introductionmentioning

confidence: 99%

Tb3+ Photophysics: Mapping the radiative and non-radiative transition probabilities of [Tb(H2O)9]3+ using molecular photophysics

Kofod

Sørensen

2022

Preprint

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“…Lanthanide ions have narrow emission bands, large stokes shifts, long fluorescence lifetimes, and high quantum yields [ 31 , 32 ]. However, due to the prohibition of the 4f-4f transition, the absorption and emission intensity of the rare earth ion itself is very weak [ 33 ]. When lanthanide ions are coordinated with small molecular organic ligands (such as 2-thienyl trifluoroacetone (TTA), acetylacetone (acac), and 1,10-phenanthroline (phen)), the fluorescent properties of lanthanide complexes can be significantly improved through the antenna effect [ 34 , 35 , 36 ].…”

Section: Introductionmentioning

confidence: 99%

Lanthanide (Eu3+/Tb3+)-Loaded γ-Cyclodextrin Nano-Aggregates for Smart Sensing of the Anticancer Drug Irinotecan

Guo

Liu

Tang

et al. 2022

IJMS

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The clinical use of anticancer drugs necessitates new technologies for their safe, sensitive, and selective detection. In this article, lanthanide (Eu3+ and Tb3+)-loaded γ-cyclodextrin nano-aggregates (ECA and TCA) are reported, which sensitively detects the anticancer drug irinotecan by fluorescence intensity changes. Fluorescent lanthanide (Eu3+ and Tb3+) complexes exhibit high fluorescence intensity, narrow and distinct emission bands, long fluorescence lifetime, and insensitivity to photobleaching. However, these lanthanide (Eu3+ and Tb3+) complexes are essentially hydrophobic, toxic, and non-biocompatible. Lanthanide (Eu3+ and Tb3+) complexes were loaded into naturally hydrophilic γ-cyclodextrin to form fluorescent nano-aggregates. The biological nontoxicity and cytocompatibility of ECA and TCA fluorescent nanoparticles were demonstrated by cytotoxicity experiments. The ECA and TCA fluorescence nanosensors can detect irinotecan selectively and sensitively through the change of fluorescence intensity, with detection limits of 6.80 μM and 2.89 μM, respectively. ECA can safely detect irinotecan in the cellular environment, while TCA can detect irinotecan intracellularly and is suitable for cell labeling.

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“…16,17 Fluorescent sensors based on POFs have been reported successively, but these sensors basically show a single fluorescence peak as the response signal. 18,19 The terbium ion (Tb 3+ ) has the advantages of high luminescence quantum yield, a long fluorescence lifetime, large Stokes displacement, unique sharp emission, etc., 20,21 due to which it is widely used in the fields of light-emitting diodes, 22 biological imaging 23 and sensing. 24 Therefore, a Tb 3+ doped fluorescent POF is synthesized by a postmodification method to construct a ratiometric fluorescent sensor, which has important application prospects.…”

Section: Introductionmentioning

confidence: 99%

A Tb³⁺ functionalized triazine-porous organic framework as a ratiometric fluorescent sensor for determination of ciprofloxacin in aquatic products

2022

New J. Chem.

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Efficient green OLEDs achieved by a terbium(III) complex with photoluminescent quantum yield close to 100%

Cited by 9 publications

References 26 publications

Tb3+ Photophysics: Mapping the radiative and non-radiative transition probabilities of [Tb(H2O)9]3+ using molecular photophysics

Tb3+ Photophysics: Mapping the radiative and non-radiative transition probabilities of [Tb(H2O)9]3+ using molecular photophysics

Lanthanide (Eu3+/Tb3+)-Loaded γ-Cyclodextrin Nano-Aggregates for Smart Sensing of the Anticancer Drug Irinotecan

A Tb³⁺ functionalized triazine-porous organic framework as a ratiometric fluorescent sensor for determination of ciprofloxacin in aquatic products

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Efficient green OLEDs achieved by a terbium(III) complex with photoluminescent quantum yield close to 100%

Cited by 9 publications

References 26 publications

Tb3+ Photophysics: Mapping the radiative and non-radiative transition probabilities of [Tb(H2O)9]3+ using molecular photophysics

Tb3+ Photophysics: Mapping the radiative and non-radiative transition probabilities of [Tb(H2O)9]3+ using molecular photophysics

Lanthanide (Eu3+/Tb3+)-Loaded γ-Cyclodextrin Nano-Aggregates for Smart Sensing of the Anticancer Drug Irinotecan

A Tb3+ functionalized triazine-porous organic framework as a ratiometric fluorescent sensor for determination of ciprofloxacin in aquatic products

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A Tb³⁺ functionalized triazine-porous organic framework as a ratiometric fluorescent sensor for determination of ciprofloxacin in aquatic products