Purely Organic Microparticles Showing Ultralong Room Temperature Phosphorescence

Thomas H, Fries F, Baerschneider T, Kroll M, Vavaleskou T, Reineke S, Gmelch M (2021)

Publication Status: Published

Publication Type: Journal article

Publication year: 2021

Journal

ACS Omega American Chemical Society: Open Access Titles / American Chemical Society

Publisher: AMER CHEMICAL SOC

Book Volume: 6

Pages Range: 13087-13093

Journal Issue: 20

DOI: 10.1021/acsomega.1c00785

Abstract

Currently, organic phosphorescent particles are heavily used in sensing and imaging. Up to now, most of these particles contain poisonous and/or expensive metal complexes. Environmentally friendly systems are therefore highly desired. A purely amorphous system consisting of poly(methyl methacrylate) particles with incorporated N,N,N',N'-tetrakis(4-carboxyphenyl)benzidine emitter molecules is presented in this work. Single particles with sizes between 400 and 840 nm show-depending on the environment-bright fluorescence and phosphorescence. The latter is observed when oxygen is not in the proximity of the emitting dye molecules. These particles can scavenge singlet oxygen, which is produced during the photoexcitation process, by incorporating it into the polymer matrix. This renders their use to be unharmful for the surrounding matter with possible application in marking schemes for living bodies.

Authors with CRIS profile

Max Gmelch

Involved external institutions

Technische Universität Dresden DE Germany (DE) Goethe-Universität Frankfurt am Main DE Germany (DE)

How to cite

APA:

Thomas, H., Fries, F., Baerschneider, T., Kroll, M., Vavaleskou, T., Reineke, S., & Gmelch, M. (2021). Purely Organic Microparticles Showing Ultralong Room Temperature Phosphorescence. ACS Omega, 6(20), 13087-13093. https://doi.org/10.1021/acsomega.1c00785

MLA:

Thomas, Heidi, et al. "Purely Organic Microparticles Showing Ultralong Room Temperature Phosphorescence." ACS Omega 6.20 (2021): 13087-13093.

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