Boosting Photo Upconversion in Electropolymerised Thin Film with Yb/Er Complexes

Hong Ju Yin; Yan Song Feng; Ning Liang; Xiao Meng Liu; Jian Xun Liu; Ke Zhi Wang; Chang Jiang Yao

doi:10.1002/adom.202202550

Boosting Photo Upconversion in Electropolymerised Thin Film with Yb/Er Complexes

Hong Ju Yin, Yan Song Feng^*, Ning Liang, Xiao Meng Liu, Jian Xun Liu, Ke Zhi Wang^*, Chang Jiang Yao^*

^*Corresponding author for this work

School of Mechatronical Engineering

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

10 Citations (Scopus)

Abstract

Upconversion luminescence (UCL) in organometallic complexes has attracted great interest in photovoltaics and biological applications due to their fascinating energy transfer mechanism from low-energy photon to high-energy photon. However, photon-upconversion operating in a single discrete entity remains a challenge caused by low-absorption cross section of the luminescent lanthanide element. Here, a novel upconversion system is reported combining Yb (Ytterbium) sensitizers and Er (Erbium) activators in the film by electropolymerization, which leads to excited-state absorption (ESA) and energy transfer upconversion (ETU) processes. For the first time, the UCL has been achieved in the thin films upon near-infrared laser irradiation, and the upconversion intensity exhibits up to 30-fold enhancement with the variation of Yb/Er ratio.

Original language	English
Article number	2202550
Journal	Advanced Optical Materials
Volume	11
Issue number	6
DOIs	https://doi.org/10.1002/adom.202202550
Publication status	Published - 17 Mar 2023

Keywords

electropolymerization
photon upconversion
polymers
thin films

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10.1002/adom.202202550

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title = "Boosting Photo Upconversion in Electropolymerised Thin Film with Yb/Er Complexes",

abstract = "Upconversion luminescence (UCL) in organometallic complexes has attracted great interest in photovoltaics and biological applications due to their fascinating energy transfer mechanism from low-energy photon to high-energy photon. However, photon-upconversion operating in a single discrete entity remains a challenge caused by low-absorption cross section of the luminescent lanthanide element. Here, a novel upconversion system is reported combining Yb (Ytterbium) sensitizers and Er (Erbium) activators in the film by electropolymerization, which leads to excited-state absorption (ESA) and energy transfer upconversion (ETU) processes. For the first time, the UCL has been achieved in the thin films upon near-infrared laser irradiation, and the upconversion intensity exhibits up to 30-fold enhancement with the variation of Yb/Er ratio.",

keywords = "electropolymerization, photon upconversion, polymers, thin films",

author = "Yin, {Hong Ju} and Feng, {Yan Song} and Ning Liang and Liu, {Xiao Meng} and Liu, {Jian Xun} and Wang, {Ke Zhi} and Yao, {Chang Jiang}",

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doi = "10.1002/adom.202202550",

language = "English",

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T1 - Boosting Photo Upconversion in Electropolymerised Thin Film with Yb/Er Complexes

AU - Yin, Hong Ju

AU - Feng, Yan Song

AU - Liang, Ning

AU - Liu, Xiao Meng

AU - Liu, Jian Xun

AU - Wang, Ke Zhi

AU - Yao, Chang Jiang

PY - 2023/3/17

Y1 - 2023/3/17

N2 - Upconversion luminescence (UCL) in organometallic complexes has attracted great interest in photovoltaics and biological applications due to their fascinating energy transfer mechanism from low-energy photon to high-energy photon. However, photon-upconversion operating in a single discrete entity remains a challenge caused by low-absorption cross section of the luminescent lanthanide element. Here, a novel upconversion system is reported combining Yb (Ytterbium) sensitizers and Er (Erbium) activators in the film by electropolymerization, which leads to excited-state absorption (ESA) and energy transfer upconversion (ETU) processes. For the first time, the UCL has been achieved in the thin films upon near-infrared laser irradiation, and the upconversion intensity exhibits up to 30-fold enhancement with the variation of Yb/Er ratio.

AB - Upconversion luminescence (UCL) in organometallic complexes has attracted great interest in photovoltaics and biological applications due to their fascinating energy transfer mechanism from low-energy photon to high-energy photon. However, photon-upconversion operating in a single discrete entity remains a challenge caused by low-absorption cross section of the luminescent lanthanide element. Here, a novel upconversion system is reported combining Yb (Ytterbium) sensitizers and Er (Erbium) activators in the film by electropolymerization, which leads to excited-state absorption (ESA) and energy transfer upconversion (ETU) processes. For the first time, the UCL has been achieved in the thin films upon near-infrared laser irradiation, and the upconversion intensity exhibits up to 30-fold enhancement with the variation of Yb/Er ratio.

KW - electropolymerization

KW - photon upconversion

KW - polymers

KW - thin films

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U2 - 10.1002/adom.202202550

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JO - Advanced Optical Materials

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Boosting Photo Upconversion in Electropolymerised Thin Film with Yb/Er Complexes

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Keywords

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