Jump to main content
Jump to site search

Issue 26, 2018
Previous Article Next Article

Molecular-based upconversion in homo/heterogeneous liquids and in micro/nanostructured solid materials

Author affiliations

Abstract

Radiation upconversion can be an elegant and efficient strategy to minimize waste in energy harvesting and storage processes. The upconversion based on triplet–triplet annihilation processes of molecular dyes is a very versatile approach, but it requires a systematic photophysical characterization of the systems to optimize the upconversion yields and develop materials for technological applications. This paper represents an overview of the work carried out in our laboratories for the study and characterization of a molecular dye pair, 2,3,7,8,12,13,17,18-octaethyl-21H,23H-porphyrin platinum(II) (PtOEP) and 1,3,6,8-tetraphenylpyrene (TPPy), suitable as the sensitizer and emitter, respectively, in a triplet–triplet annihilation based upconversion process. The investigation has been carried out in various media with increasing complexity. First, we used the dye pair to characterize the UC-efficiencies in homogeneous solvents of different viscosities and in oil-in-water microemulsions; then we explored the possibility to achieve upconversion in solid materials, like nanostructured silica matrices and liquid filled microcapsules. The possibility to achieve upconversion emission even in confined and rigid media has been confirmed and can inspire further applications of the process.

Graphical abstract: Molecular-based upconversion in homo/heterogeneous liquids and in micro/nanostructured solid materials

Back to tab navigation

Supplementary files

Publication details

The article was received on 02 Jan 2018, accepted on 15 May 2018 and first published on 15 May 2018


Article type: Perspective
DOI: 10.1039/C8DT00020D
Citation: Dalton Trans., 2018,47, 8557-8565
  •   Request permissions

    Molecular-based upconversion in homo/heterogeneous liquids and in micro/nanostructured solid materials

    L. Latterini, G. Massaro, M. Penconi, P. L. Gentili, C. Roscini and F. Ortica, Dalton Trans., 2018, 47, 8557
    DOI: 10.1039/C8DT00020D

Search articles by author

Spotlight

Advertisements