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
Journal	Nature Communications
Volume	15
Early online date	28 Aug 2024
DOIs	https://doi.org/10.1038/S41467-024-51231-X
Publication status	E-pub ahead of print - 28 Aug 2024

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10.1038/S41467-024-51231-XLicence: CC BY

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1 Active
2 Finished

Allan Watson Programme Grant: Boron: Beyond the Reagent
Watson, A. J. B. (PI), Morris, R. E. (CoI), Smith, A. D. (CoI) & Zysman-Colman, E. (CoI)
UK Research and Innovation
1/05/23 → 30/04/28
Project: Standard
H2020 MSCA IF 2019 AIE-RTP-PLED: H2020-MSCA-IF-2019 AIE-RTP-PLED
Zysman-Colman, E. (PI)
European Commission
20/06/20 → 19/06/22
Project: Fellowship
Chemistry EPSRC-JSPS: EPSRC-JSPS Core-to-Core Grant Application
Zysman-Colman, E. (PI)
1/08/18 → 31/01/24
Project: Standard

A Temperature Sensor with a Wide Spectral Range Based on a Dual-emissive TADF Dendrimer System (dataset)
Si, C. (Creator), Wang, T. (Creator), Xu, Y. (Creator), Lin, D. (Creator), Sun, D. (Creator) & Zysman-Colman, E. (Creator), University of St Andrews, 20 Oct 2024
DOI: 10.17630/c4d23206-699a-4378-af84-26c32e028397
Dataset

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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).",

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AU - Si, Changfeng

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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.

U2 - 10.1038/S41467-024-51231-X

DO - 10.1038/S41467-024-51231-X

M3 - Article

SN - 2041-1723

VL - 15

JO - Nature Communications

JF - Nature Communications

M1 - 7439

ER -

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

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Projects

Allan Watson Programme Grant: Boron: Beyond the Reagent

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

Chemistry EPSRC-JSPS: EPSRC-JSPS Core-to-Core Grant Application

Datasets

A Temperature Sensor with a Wide Spectral Range Based on a Dual-emissive TADF Dendrimer System (dataset)

Cite this