Engendering persistent organic room temperature phosphorescence by trace ingredient incorporation.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 33962952.
- Also identified by DOI 10.1126/sciadv.abf9668 and PMC identifier 8104869.
- Licence recorded as CC BY-NC.
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Abstract
Pure organic persistent room temperature phosphorescence (RTP) has shown great potential in information encryption, optoelectronic devices, and bio-applications. However, trace impurities are generated in synthesis, causing unpredictable effects on the luminescence properties. Here, an impurity is isolated from a pure organic RTP system and structurally characterized that caused an unusual ultralong RTP in matrix even at 0.01 mole percent content. Inspired by this effect, a series of compounds are screened out to form the bicomponent RTP system by the trace ingredient incorporation method. The RTP quantum yields reach as high as 74.2%, and the lifetimes reach up to 430 ms. Flexible application of trace ingredients to construct RTP materials has become an eye-catching strategy with high efficiency, economy, and potential for applications as well as easy preparation.