4.5 Article

Polymerization-Induced Emission of Color-Tunable Room Temperature Phosphorescence

Journal

ADVANCED MATERIALS INTERFACES
Volume 9, Issue 22, Pages -

Publisher

WILEY
DOI: 10.1002/admi.202200344

Keywords

aggregation; anti-counterfeiting; multicolor emission; polymer molecular weight; room-temperature phosphorescence

Funding

  1. NSFC [21875025]
  2. Innovation Research Group at Institutions of Higher Education in Chongqing [CXQT19027]
  3. Chongqing Talent Program
  4. Science and Technology Project of Banan District
  5. Innovation Support Plan for the Returned Overseas of Chongqing [cx2020052]
  6. Open Fund of Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates [2021-kllma-03]

Ask authors/readers for more resources

This study designed and prepared three molecular weight polymers and investigated the changes in their fluorescence emissions. By doping these polymers into a PAN matrix, molecular weight-dependent polymeric RTP materials were successfully achieved, and a redshift phenomenon was discovered, which may be attributed to different aggregation states formed by assembly of different molecular weight polymeric chains. These polymeric phosphors can be used as anti-counterfeiting ink for advanced information encryption.
Pure organic room-temperature phosphorescence (RTP) materials have been widely utilized in security signs, anti-counterfeiting, data encrypting, and other fields, which have attracted great attention. In the past few years, smart materials with color-tunable organic RTP materials are reported by many researchers, while the work focused on the color-tunable polymeric RTP materials is still rare, especially for molecular weight-dependent polymeric RTP systems. Here, we designed and prepared three molecular weight polymers P1, P2, and P3 by different polymerization reaction times, and found that the fluorescence emissions of these polymer powders are various. Unexpectedly, the molecular weight-dependent polymeric RTP materials are achieved through doping these polymers into polyacrylonitrile (PAN) matrix, and the International de l'Eclairage was redshift from (0.205,0.257) to (0.503,0.435). This phenomenon is ascribed to the different aggregation states formed by assembly of different molecular weight polymeric chains. Meanwhile, the electrostatic interaction between phosphor and PAN is hardly affected by water. Therefore, advanced information encryption can be achieved by using these polymeric phosphors as anti-counterfeiting ink.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.5
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available