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Triplet harvesting is important for the realization of high‐efficiency fluorescent organic light‐emitting diodes (OLEDs). Triplet–triplet annihilation (TTA) is one triplet‐harvesting strategy. However, for blue‐emitting anthracene derivatives, the theoretical maximum radiative singlet‐exciton ratio generated from the TTA process is known to be 15% in addition to the initially generated singlets of...
Organic Light‐Emitting Diodes
Triplet exciton harvesting via triplet–triplet annihilation, is known to generate only 40% of the total radiative excitons in organic light‐emitting diodes (OLEDs) theoretically. In article number 2100161, Yun‐Hi Kim, Jang‐Joo Kim, and co‐workers realize a total radiative exciton ratio of nearly 50% with a carefully designed anthracene derivative and device structure,...
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