A temperature sensor with a wide spectral range based on a dual-emissive TADF dendrimer system

Changfeng Si; Tao Wang; Yan Xu; Dongqing Lin; Dianming Sun; Eli Zysman-Colman

doi:10.1038/S41467-024-51231-X

A temperature sensor with a wide spectral range based on a dual-emissive TADF dendrimer system

Changfeng Si, Tao Wang, Yan Xu, Dongqing Lin, Dianming Sun^*, Eli Zysman-Colman^*

^*Corresponding author for this work

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

Abstract

Dual emission from thermally activated delayed fluorescence (TADF) emitters is often difficult to observe, especially in solution, limited by Kasha’s rule. Two TADF dendrimers containing N-doped polycyclic aromatic hydrocarbons as acceptors are designed and synthesized. Compound 2GCzBPN, having a strongly twisted geometry, exhibits TADF, while 2GCzBPPZ, possessing a less twisted geometry, shows dual emission associated with the monomer and aggregate that is TADF. The demonstration reveals that 2GCzBPPZ can serve as a temperature sensor with excellent temperature sensitivity and remarkably wide emission color response in solution. By embedding 2GCzBPPZ in paraffin we demonstrate a spatial-temperature sensor that shows a noticeable emission shift from yellow to green and ultimately to blue as the temperature increases from 20 to 200 °C. We finally demonstrate the utility of these TADF dendrimers in solution-processed organic light-emitting diodes.

Original language	English
Article number	7439
Pages (from-to)	1-11
Number of pages	11
Journal	Nature Communications
Volume	15
DOIs	https://doi.org/10.1038/S41467-024-51231-X
Publication status	Published - 28 Aug 2024

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Cite this

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title = "A temperature sensor with a wide spectral range based on a dual-emissive TADF dendrimer system",

abstract = "Dual emission from thermally activated delayed fluorescence (TADF) emitters is often difficult to observe, especially in solution, limited by Kasha{\textquoteright}s rule. Two TADF dendrimers containing N-doped polycyclic aromatic hydrocarbons as acceptors are designed and synthesized. Compound 2GCzBPN, having a strongly twisted geometry, exhibits TADF, while 2GCzBPPZ, possessing a less twisted geometry, shows dual emission associated with the monomer and aggregate that is TADF. The demonstration reveals that 2GCzBPPZ can serve as a temperature sensor with excellent temperature sensitivity and remarkably wide emission color response in solution. By embedding 2GCzBPPZ in paraffin we demonstrate a spatial-temperature sensor that shows a noticeable emission shift from yellow to green and ultimately to blue as the temperature increases from 20 to 200 °C. We finally demonstrate the utility of these TADF dendrimers in solution-processed organic light-emitting diodes.",

author = "Changfeng Si and Tao Wang and Yan Xu and Dongqing Lin and Dianming Sun and Eli Zysman-Colman",

note = "Funding: from the European Union{\textquoteright}s Horizon 2020 research and innovation program under the Marie C.S. thanks the China Scholarship Council (201806890001). T.W. acknowledges the support Sk{\l}odowska-Curie grant agreement No. 897098 (AIE-RTP-PLED). D.S. acknowledges support from the Royal Academy of Engineering Enterprise Fellowship (EF2122-13106). We thank the Engineering and Physical Sciences Research Council for support (EP/R035164/1 and EP/W007517/1 to E.Z-C).",

year = "2024",

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doi = "10.1038/S41467-024-51231-X",

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AU - Si, Changfeng

AU - Wang, Tao

AU - Xu, Yan

AU - Lin, Dongqing

AU - Sun, Dianming

AU - Zysman-Colman, Eli

N1 - Funding: from the European Union’s Horizon 2020 research and innovation program under the Marie C.S. thanks the China Scholarship Council (201806890001). T.W. acknowledges the support Skłodowska-Curie grant agreement No. 897098 (AIE-RTP-PLED). D.S. acknowledges support from the Royal Academy of Engineering Enterprise Fellowship (EF2122-13106). We thank the Engineering and Physical Sciences Research Council for support (EP/R035164/1 and EP/W007517/1 to E.Z-C).

PY - 2024/8/28

Y1 - 2024/8/28

N2 - Dual emission from thermally activated delayed fluorescence (TADF) emitters is often difficult to observe, especially in solution, limited by Kasha’s rule. Two TADF dendrimers containing N-doped polycyclic aromatic hydrocarbons as acceptors are designed and synthesized. Compound 2GCzBPN, having a strongly twisted geometry, exhibits TADF, while 2GCzBPPZ, possessing a less twisted geometry, shows dual emission associated with the monomer and aggregate that is TADF. The demonstration reveals that 2GCzBPPZ can serve as a temperature sensor with excellent temperature sensitivity and remarkably wide emission color response in solution. By embedding 2GCzBPPZ in paraffin we demonstrate a spatial-temperature sensor that shows a noticeable emission shift from yellow to green and ultimately to blue as the temperature increases from 20 to 200 °C. We finally demonstrate the utility of these TADF dendrimers in solution-processed organic light-emitting diodes.

AB - Dual emission from thermally activated delayed fluorescence (TADF) emitters is often difficult to observe, especially in solution, limited by Kasha’s rule. Two TADF dendrimers containing N-doped polycyclic aromatic hydrocarbons as acceptors are designed and synthesized. Compound 2GCzBPN, having a strongly twisted geometry, exhibits TADF, while 2GCzBPPZ, possessing a less twisted geometry, shows dual emission associated with the monomer and aggregate that is TADF. The demonstration reveals that 2GCzBPPZ can serve as a temperature sensor with excellent temperature sensitivity and remarkably wide emission color response in solution. By embedding 2GCzBPPZ in paraffin we demonstrate a spatial-temperature sensor that shows a noticeable emission shift from yellow to green and ultimately to blue as the temperature increases from 20 to 200 °C. We finally demonstrate the utility of these TADF dendrimers in solution-processed organic light-emitting diodes.

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DO - 10.1038/S41467-024-51231-X

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SP - 1

EP - 11

JO - Nature Communications

JF - Nature Communications

M1 - 7439

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A temperature sensor with a wide spectral range based on a dual-emissive TADF dendrimer system

Abstract

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H2020 MSCA IF 2019 AIE-RTP-PLED: H2020-MSCA-IF-2019 AIE-RTP-PLED

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