Aggregation-induced white emission of lanthanide metallopolymer and its coating on cellulose nanopaper for white-light softening

Zhao Zhang*, Yanxin Chen, Hui Chang, Yaoyu Wang, Xinping Li, Xunjin ZHU

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

A series of metallopolymers containing two lanthanides (Poly-Eu-Tb, molar ratio of Eu3+/Tb3+ = 1 : 1, 1 : 2, 1 : 4 and 1 : 8) have been synthesized via the coordination of Eu3+ and Tb3+ ions to terpyridine-based polymers (Poly). At a high concentration (1 mg mL-1) in DMF, Poly-Eu-Tb with an optimal Eu3+/Tb3+ ratio (1 : 8) shows strong white light emission from the Poly backbone and Eu3+ and Tb3+ ions, but changes to very weak blue emission mainly from the Poly backbone when diluted to an extremely low concentration (0.1 mg mL-1). For typical aggregation-induced-emission (AIE) effects, a strong white light emission can be recovered along with the addition of 1,4-dioxane to the diluted DMF solution. Moreover, Poly-Eu-Tb is uniformly dispersed on the surface of cellulose nanopaper (CNFs) via a simple solution coating process, giving a new flexible cellulose nanopaper Poly-Eu-Tb-CNFs. The new cellulose nanopaper characteristic of UV-excited white light emission shows excellent haze properties (haze value as high as 98%) and therefore could be applied as a substrate and light diffuser in the fabrication of soft-white-light emitting diodes (SWLEDs).

Original languageEnglish
Pages (from-to)2205-2210
Number of pages6
JournalJournal of Materials Chemistry C
Volume8
Issue number6
DOIs
Publication statusPublished - 14 Feb 2020

Scopus Subject Areas

  • Chemistry(all)
  • Materials Chemistry

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