Deep Blue Organic TADF Emitters for Electroluminescent Devices

Add to your list(s) Download to your calendar using vCal

• Prof Eli Zysman-Colman (University of St Andrews)
• Tuesday 26 February 2019, 14:30-15:30
• Rayleigh Seminar Room, Maxwell Centre, Cavendish Laboratory.

If you have a question about this talk, please contact Emrys Evans.

The first generation OLE Ds were based on organic fluorescent emitters. Their efficiency was intrinsically capped at 25% due to only being able to recruit singlet excitons. The second generation OLE Ds have employed organometallic phosphorescent emitters, which harvest both singlet and triplet excitons for emission due to the enhanced intersystem crossing mediated by the heavy metals such as iridium(III) and platinum(II). These metal complexes possess very desirable optoelectronic properties and lead to very efficient OLED devices. However, the rarity of these metals, their high cost and their toxicity are important detracting features that inhibit large-scale, worldwide adoption of OLED technology, particularly for lighting where, unlike displays, low cost devices are crucial to market growth. The third generation OLE Ds are based on small organic compounds that emit via a thermally activated delayed fluorescence (TADF) mechanism. As with phosphorescent emitters, OLE Ds using these emitters can recruit 100% of the excitons. In this presentation, we present our recent efforts towards blue emitter in electroluminescent devices.

This talk is part of the Optoelectronics Group series.

This talk is included in these lists:

• All Cavendish Laboratory Seminars
• All Talks (aka the CURE list)
• Centre for Health Leadership and Enterprise
• Featured lists
• ME Seminar
• Neurons, Fake News, DNA and your iPhone: The Mathematics of Information
• Optoelectronics Group
• Rayleigh Seminar Room, Maxwell Centre, Cavendish Laboratory
• School of Physical Sciences
• Thin Film Magnetic Talks
• few29

Note that ex-directory lists are not shown.