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Identifying Thermally Activated Delayed Fluorescence (TADF) using an FS5 Spectrofluorometer

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Identifying Thermally Activated Delayed Fluorescence (TADF) using an FS5 Spectrofluorometer

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  • Author: Francis Perrin
Thermally activated delayed fluorescence (TADF), also known as E-type delayed fluorescence, was first observed in 1924 by Francis Perrin. In 2012 it received a resurgence in attention, and exposure to a wider audience, when Professor Chihaya Adachi and colleagues at Kyushu University used the TADF mechanism to harvest triplet excitons in organic light emitting diodes (OLED) and create a new type of high-efficiency OLED that does not require the use of heavy metals. TADF has since become one of the most popular approaches to harvest triplet excitons in OLEDs, and new TADF emitters with good stability and attractive colour coordinates are being intensely researched in both academia and industry.

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