Green upconversion fluorescence in terbium coordination complexes

Li Luo; Winnie Po Wan Lai; Ka Leung Wong; Wing Tak Wong; King Fai Li; Kok Wai Cheah

doi:10.1016/j.cplett.2004.09.053

Green upconversion fluorescence in terbium coordination complexes

Li Luo
, Winnie Po Wan Lai
, Ka Leung Wong
, Wing Tak Wong
, King Fai Li
, Kok Wai Cheah

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

21 Citations (Scopus)

Abstract

Three terbium coordination complexes have been synthesized. Bright green emission from these compounds can be obtained under infrared pulsed laser pumping. The detail photophysics demonstrates it is due to two-photon absorption of the ligand. In addition, the effect of different ligands on upconversion efficiency was compared and discussed. This study demonstrates that enhanced two-photon induced lanthanide emission can be achieved when it is sensitized with suitable organic ligands. The estimated upconversion efficiency was 1% with an excitation energy of 1.2 W/cm² under nanosecond pulse excitation, suggesting their potential applications in two-photon area.

Original language	English
Pages (from-to)	372-376
Number of pages	5
Journal	Chemical Physics Letters
Volume	398
Issue number	4-6
DOIs	https://doi.org/10.1016/j.cplett.2004.09.053
Publication status	Published - 11 Nov 2004

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/j.cplett.2004.09.053

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title = "Green upconversion fluorescence in terbium coordination complexes",

abstract = "Three terbium coordination complexes have been synthesized. Bright green emission from these compounds can be obtained under infrared pulsed laser pumping. The detail photophysics demonstrates it is due to two-photon absorption of the ligand. In addition, the effect of different ligands on upconversion efficiency was compared and discussed. This study demonstrates that enhanced two-photon induced lanthanide emission can be achieved when it is sensitized with suitable organic ligands. The estimated upconversion efficiency was 1\% with an excitation energy of 1.2 W/cm2 under nanosecond pulse excitation, suggesting their potential applications in two-photon area.",

author = "Li Luo and Lai, \{Winnie Po Wan\} and Wong, \{Ka Leung\} and Wong, \{Wing Tak\} and Li, \{King Fai\} and Cheah, \{Kok Wai\}",

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doi = "10.1016/j.cplett.2004.09.053",

language = "English",

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journal = "Chemical Physics Letters",

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T1 - Green upconversion fluorescence in terbium coordination complexes

AU - Luo, Li

AU - Lai, Winnie Po Wan

AU - Wong, Ka Leung

AU - Wong, Wing Tak

AU - Li, King Fai

AU - Cheah, Kok Wai

PY - 2004/11/11

Y1 - 2004/11/11

N2 - Three terbium coordination complexes have been synthesized. Bright green emission from these compounds can be obtained under infrared pulsed laser pumping. The detail photophysics demonstrates it is due to two-photon absorption of the ligand. In addition, the effect of different ligands on upconversion efficiency was compared and discussed. This study demonstrates that enhanced two-photon induced lanthanide emission can be achieved when it is sensitized with suitable organic ligands. The estimated upconversion efficiency was 1% with an excitation energy of 1.2 W/cm2 under nanosecond pulse excitation, suggesting their potential applications in two-photon area.

AB - Three terbium coordination complexes have been synthesized. Bright green emission from these compounds can be obtained under infrared pulsed laser pumping. The detail photophysics demonstrates it is due to two-photon absorption of the ligand. In addition, the effect of different ligands on upconversion efficiency was compared and discussed. This study demonstrates that enhanced two-photon induced lanthanide emission can be achieved when it is sensitized with suitable organic ligands. The estimated upconversion efficiency was 1% with an excitation energy of 1.2 W/cm2 under nanosecond pulse excitation, suggesting their potential applications in two-photon area.

UR - https://www.scopus.com/pages/publications/7044246158

U2 - 10.1016/j.cplett.2004.09.053

DO - 10.1016/j.cplett.2004.09.053

M3 - Journal article

SN - 0009-2614

VL - 398

SP - 372

EP - 376

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 4-6

ER -

Green upconversion fluorescence in terbium coordination complexes

Abstract

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