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

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arxiv 2204.06789 v1 pith:HOL5JIT6 submitted 2022-04-14 cond-mat.mtrl-sci

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

classification cond-mat.mtrl-sci
keywords emissionacrossbeyonddiamondoidsefficientfunctionalizedoctave-spanningspectrum
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Sustainable efficient light emitter 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 they offer 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 {\deg}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.

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