Dual-emitting film with cellulose nanocrystal-assisted carbon dots grafted SrAl 2 O 4 , Eu 2+ , Dy 3+ phosphors for temperature sensing

Longfei Zhang, Shaoyi Lyu, Qijun Zhang, Yuntao Wu, Chuck Melcher, Stephen Chmely, Zhilin Chen, Siqun Wang

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this study, we synthesized a novel dual-emitting fluorescent phosphor from cellulose nanocrystal (CNC)-assisted carbon dots (CDs)-grafted SrAl 2 O 4 , Eu 2+ , Dy 3+ (SAO) through a facile core-shell process. The CNC-CDs-coated SAO presents excellent scattered dual-emission and improved water resistance without destruction of the SrAl 2 O 4 crystals. The phosphors were then reacted with coupling amino-silane and assembled with nanofibrillated cellulose skeletons to create flexible isotropic films. The obtained phosphors and hybrid films were characterized via electron microscopy, photoluminescence analysis, and X-ray photoelectron spectroscopy. The results demonstrate that the optical signals of phosphors can be controlled by CDs content. The assembled cellulose films exhibit strong temperature responses, high light-induced scattering, and good flexibility. The luminescent emission of films is highly sensitive to surrounding temperature variation (243–383 K) and good linearity behavior was obtained for such a sensitive sensor. Such flexible nanofibrillated cellulose films are excellent candidates for temperature sensor devices in industrial applications.

Original languageEnglish (US)
Pages (from-to)767-777
Number of pages11
JournalCarbohydrate Polymers
Volume206
DOIs
StatePublished - Feb 15 2019

Fingerprint

Cellulose
Phosphors
Nanocrystals
Carbon
Cellulose films
Silanes
Temperature
Temperature sensors
Electron microscopy
Industrial applications
Photoluminescence
X ray photoelectron spectroscopy
Scattering
Crystals
Water
Sensors

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Zhang, Longfei ; Lyu, Shaoyi ; Zhang, Qijun ; Wu, Yuntao ; Melcher, Chuck ; Chmely, Stephen ; Chen, Zhilin ; Wang, Siqun. / Dual-emitting film with cellulose nanocrystal-assisted carbon dots grafted SrAl 2 O 4 , Eu 2+ , Dy 3+ phosphors for temperature sensing In: Carbohydrate Polymers. 2019 ; Vol. 206. pp. 767-777.
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abstract = "In this study, we synthesized a novel dual-emitting fluorescent phosphor from cellulose nanocrystal (CNC)-assisted carbon dots (CDs)-grafted SrAl 2 O 4 , Eu 2+ , Dy 3+ (SAO) through a facile core-shell process. The CNC-CDs-coated SAO presents excellent scattered dual-emission and improved water resistance without destruction of the SrAl 2 O 4 crystals. The phosphors were then reacted with coupling amino-silane and assembled with nanofibrillated cellulose skeletons to create flexible isotropic films. The obtained phosphors and hybrid films were characterized via electron microscopy, photoluminescence analysis, and X-ray photoelectron spectroscopy. The results demonstrate that the optical signals of phosphors can be controlled by CDs content. The assembled cellulose films exhibit strong temperature responses, high light-induced scattering, and good flexibility. The luminescent emission of films is highly sensitive to surrounding temperature variation (243–383 K) and good linearity behavior was obtained for such a sensitive sensor. Such flexible nanofibrillated cellulose films are excellent candidates for temperature sensor devices in industrial applications.",
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Dual-emitting film with cellulose nanocrystal-assisted carbon dots grafted SrAl 2 O 4 , Eu 2+ , Dy 3+ phosphors for temperature sensing . / Zhang, Longfei; Lyu, Shaoyi; Zhang, Qijun; Wu, Yuntao; Melcher, Chuck; Chmely, Stephen; Chen, Zhilin; Wang, Siqun.

In: Carbohydrate Polymers, Vol. 206, 15.02.2019, p. 767-777.

Research output: Contribution to journalArticle

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AU - Zhang, Longfei

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AU - Wu, Yuntao

AU - Melcher, Chuck

AU - Chmely, Stephen

AU - Chen, Zhilin

AU - Wang, Siqun

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