Phosphorescence is used in applications such as OLEDs and several types of medical diagnostics, including cancer.
According to the scientists, the thienyl diketone molecule achieves phosphorescence that is over 10 times faster than traditional materials.Challenges in enabling metal-free phosphorescence
The paper states that organic RTP needed to overcome several challenges to match the output derived from traditional materials. The addition of heavy atoms such as bromine, iodine, selenium, and tellurium along with carbonyl functionalities is a common approach utilized for enhancing rate constant. But this poses another problem as they are associated with high chemical reactivity and instability.
The paper also states that a substantial phosphorescence rate was also experimentally confirmed, which “was the key to outstanding RTP quantum yields in solution and in polymer films .”
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