Dye Sensitization for Ultraviolet Upconversion Enhancement

Mingkai Wang; Hanlin Wei; Shuai Wang; Chuanyu Hu; Qianqian Su

doi:10.3390/nano11113114

Dye Sensitization for Ultraviolet Upconversion Enhancement

Mingkai Wang, Hanlin Wei, Shuai Wang, Chuanyu Hu^*, Qianqian Su^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

11 Citations (Scopus)

37 Downloads (CityUHK Scholars)

Abstract

Upconversion nanocrystals that converted near-infrared radiation into emission in the ultraviolet spectral region offer many exciting opportunities for drug release, photocatalysis, photodynamic therapy, and solid-state lasing. However, a key challenge is the development of lanthanidedoped nanocrystals with efficient ultraviolet emission, due to low conversion efficiency. Here, we develop a dye-sensitized, heterogeneous core–multishelled lanthanide nanoparticle for ultraviolet upconversion enhancement. We systematically study the main influencing factors on ultraviolet upconversion emission, including dye concentration, excitation wavelength, and dye-sensitizer distance. Interestingly, our experimental results demonstrate a largely promoted multiphoton upconversion. The underlying mechanism and detailed energy transfer pathway are illustrated. These findings offer insights into future developments of highly ultraviolet-emissive nanohybrids and provide more opportunities for applications in photo-catalysis, biomedicine, and environmental science.

Original language	English
Article number	3114
Journal	Nanomaterials
Volume	11
Issue number	11
Online published	18 Nov 2021
DOIs	https://doi.org/10.3390/nano11113114
Publication status	Published - Nov 2021
Externally published	Yes

Funding

3 CO22)33ꞏxH22O (99.9%), Nd(CH33CO22)33ꞏxH22O (99.9%), Y(CH33CO22)33ꞏxH22O (99.9%), Yb(CH33CO22)33ꞏxH22O (99.9%), Tm(CH33CO22)33ꞏxH22O (99.9%), NaOH (>98%), NH44F (>98%), chloroform(99.9%), oleic acid (OA, 90%), and 1‐octadecene (ODE, 90%) were all purchased from Sigma‐Aldrich (Shanghai, China). IR‐806 is supported by Dr. Sanyang Han from the University of Cambridge. IR‐780 iodide, 4‐mercaptobenzoic acid, and N,N‐dimethylfor‐ mamide (DMF, anhydrous, 99.8%), as raw materials of IR‐806, were obtained from Sigma‐ Aldrich (London, UK). Dichloromethane (DCM, AR) and diethyl ether (AR), as solvents for the synthesis of IR‐806, were obtained from Lab‐Scan (London, United Kingdom). Chloroform (AR), cyclohexane (AR), and ethanol (AR) were purchased from Sinopharm Chemical Reagent Co., Ltd. (Shanghai, China). All chemicals and reagents were used as received without further purification unless otherwise noted. 2.2. Characterization Funding: This research was funded by the National Natural Science Foundation of China (Nos. 82002893 and 21701109).

Research Keywords

Dye sensitization
Energy transfer
Heterogeneous nanoparticles
Lanthanide nanoparticles
Luminescence enhancement
Ultraviolet upconversion

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This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/

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title = "Dye Sensitization for Ultraviolet Upconversion Enhancement",

abstract = "Upconversion nanocrystals that converted near-infrared radiation into emission in the ultraviolet spectral region offer many exciting opportunities for drug release, photocatalysis, photodynamic therapy, and solid-state lasing. However, a key challenge is the development of lanthanidedoped nanocrystals with efficient ultraviolet emission, due to low conversion efficiency. Here, we develop a dye-sensitized, heterogeneous core–multishelled lanthanide nanoparticle for ultraviolet upconversion enhancement. We systematically study the main influencing factors on ultraviolet upconversion emission, including dye concentration, excitation wavelength, and dye-sensitizer distance. Interestingly, our experimental results demonstrate a largely promoted multiphoton upconversion. The underlying mechanism and detailed energy transfer pathway are illustrated. These findings offer insights into future developments of highly ultraviolet-emissive nanohybrids and provide more opportunities for applications in photo-catalysis, biomedicine, and environmental science.",

keywords = "Dye sensitization, Energy transfer, Heterogeneous nanoparticles, Lanthanide nanoparticles, Luminescence enhancement, Ultraviolet upconversion",

author = "Mingkai Wang and Hanlin Wei and Shuai Wang and Chuanyu Hu and Qianqian Su",

note = "Publisher Copyright: {\textcopyright} 2021 by the authors. Licensee MDPI, Basel, Switzerland.",

year = "2021",

month = nov,

doi = "10.3390/nano11113114",

language = "English",

volume = "11",

journal = "Nanomaterials",

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TY - JOUR

T1 - Dye Sensitization for Ultraviolet Upconversion Enhancement

AU - Wang, Mingkai

AU - Wei, Hanlin

AU - Wang, Shuai

AU - Hu, Chuanyu

AU - Su, Qianqian

PY - 2021/11

Y1 - 2021/11

N2 - Upconversion nanocrystals that converted near-infrared radiation into emission in the ultraviolet spectral region offer many exciting opportunities for drug release, photocatalysis, photodynamic therapy, and solid-state lasing. However, a key challenge is the development of lanthanidedoped nanocrystals with efficient ultraviolet emission, due to low conversion efficiency. Here, we develop a dye-sensitized, heterogeneous core–multishelled lanthanide nanoparticle for ultraviolet upconversion enhancement. We systematically study the main influencing factors on ultraviolet upconversion emission, including dye concentration, excitation wavelength, and dye-sensitizer distance. Interestingly, our experimental results demonstrate a largely promoted multiphoton upconversion. The underlying mechanism and detailed energy transfer pathway are illustrated. These findings offer insights into future developments of highly ultraviolet-emissive nanohybrids and provide more opportunities for applications in photo-catalysis, biomedicine, and environmental science.

AB - Upconversion nanocrystals that converted near-infrared radiation into emission in the ultraviolet spectral region offer many exciting opportunities for drug release, photocatalysis, photodynamic therapy, and solid-state lasing. However, a key challenge is the development of lanthanidedoped nanocrystals with efficient ultraviolet emission, due to low conversion efficiency. Here, we develop a dye-sensitized, heterogeneous core–multishelled lanthanide nanoparticle for ultraviolet upconversion enhancement. We systematically study the main influencing factors on ultraviolet upconversion emission, including dye concentration, excitation wavelength, and dye-sensitizer distance. Interestingly, our experimental results demonstrate a largely promoted multiphoton upconversion. The underlying mechanism and detailed energy transfer pathway are illustrated. These findings offer insights into future developments of highly ultraviolet-emissive nanohybrids and provide more opportunities for applications in photo-catalysis, biomedicine, and environmental science.

KW - Dye sensitization

KW - Energy transfer

KW - Heterogeneous nanoparticles

KW - Lanthanide nanoparticles

KW - Luminescence enhancement

KW - Ultraviolet upconversion

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U2 - 10.3390/nano11113114

DO - 10.3390/nano11113114

M3 - RGC 21 - Publication in refereed journal

C2 - 34835876

AN - SCOPUS:85119142248

SN - 2079-4991

VL - 11

JO - Nanomaterials

JF - Nanomaterials

IS - 11

M1 - 3114

ER -

Dye Sensitization for Ultraviolet Upconversion Enhancement

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Research Keywords

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