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 inOptical materials express Vol. 12; no. 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 Journal Article
LanguageEnglish
Published Washington Optical Society of America 01.09.2022
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