Photon Upconversion at Crystalline Organic-Organic Heterojunctions.
basic_science · Level V
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- Record sourced from PubMed, PMID 27500466.
- Also identified by DOI 10.1002/adma.201601718.
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Abstract
Triplet transfer across a surface-anchored metal-organic-framework heterojunction is demonstrated by the observation of triplet-triplet annihilation photon -upconversion in a sensitizer-emitter heterostructure. Upconversion thresholds under 1 mW cm<sup>-2</sup> are achieved. In the broader context, the double-electron-exchange mechanism of triplet transfer indicates that the heterojunction quality is sufficient for electrons to move between layers in this solution-processed crystalline heterostructure.