Octave-spanning emission across the visible spectrum from single crystalline 1,3,5,7-tetrakis-(p-methoxyphenyl)adamantane

Sustainable efficient light emitters based solely on elements-of-hope are needed to replace current compounds based on less-abundant materials. Functionalized diamondoids are a potential solution for this challenge, as a prototypical example offers efficient, octave-spanning emission across the visi...

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Bibliographic Details
Published in:Optical materials express 2022-09, Vol.12 (9), p.3517
Main Authors: Müller, Marius J., Ziese, Ferdinand, Belz, Jürgen, Hüppe, Franziska, Gowrisankar, Saravanan, Bernhardt, Bastian, Schwan, Sebastian, Mollenhauer, Doreen, Schreiner, Peter R., Volz, Kerstin, Sanna, Simone, Chatterjee, Sangam
Format: Article
Language:English
Subjects:
Crystal structure
Crystallinity
Diamonds
Emission
Emitters
Excitons
Phosphors
Quantum efficiency
Single crystals
Visible spectrum
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Summary:Sustainable efficient light emitters based solely on elements-of-hope are needed to replace current compounds based on less-abundant materials. Functionalized diamondoids are a potential solution for this challenge, as a prototypical example offers efficient, octave-spanning emission across the visible spectrum in their single-crystalline form. Its large quantum efficiency increases towards higher-than-ambient temperatures to beyond 7%. The stability beyond 200 °C renders such functionalized diamondoids as sustainable phosphors for LED applications. Detailed structural and theoretical investigations suggest a crucial role of exciton states accompanied by structural modifications (self-trapped excitons) in the emission process.
ISSN:2159-3930
2159-3930
DOI:10.1364/OME.461427