Issue 5, 2018

Enhanced phosphorescence properties of a Pt-porphyrin derivative fixed on the surface of nano-porous glass

Abstract

The room-temperature phosphorescence chromophore, Pt(II) coproporphyrin I (PtCP), was fixed on the surface of a 3D-network of nanoscale pores of porous glass through ion-exchange reaction. The absorption and phosphorescence spectra indicated that PtCP can be loaded while maintaining monomeric dispersion at concentrations well beyond solubility limits of PtCP in solution. The phosphorescence quantum yield of PtCP fixed on the surface was also found to have double the enhancement of solution. The extended lifetime of phosphorescence of PtCP bonded on the surface compared to that in solution clearly indicated that suppression of nonradiative deactivation plays a key role in high quantum yield and long triplet lifetime. This hybridization with nano-porous glass provides opportunities for various potential applications.

Graphical abstract: Enhanced phosphorescence properties of a Pt-porphyrin derivative fixed on the surface of nano-porous glass

Supplementary files

Article information

Article type
Paper
Submitted
14 dec 2017
Accepted
16 mar 2018
First published
16 apr 2018
This article is Open Access
Creative Commons BY-NC license

Photochem. Photobiol. Sci., 2018,17, 622-627

Enhanced phosphorescence properties of a Pt-porphyrin derivative fixed on the surface of nano-porous glass

T. Mizokuro, A. Abulikemu, Y. Sakagami, T. Jin and K. Kamada, Photochem. Photobiol. Sci., 2018, 17, 622 DOI: 10.1039/C7PP00449D

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