Project description DEENESFRITPL High-efficiency OLEDs with phosphorescent materials Brighter and more colourful than ever, organic light-emitting diode (OLED) displays boast several advantages compared to other display technologies. Not only do they provide the best image quality, but they are also thin, efficient and can be made to be transparent and flexible. What is more, they consume less power. Limited by electron spin–statistics, the maximum internal quantum efficiency of conventional fluorescent OLEDs is 25 %. Using the principle of phosphorescence, OLEDs generate light from both triplet and singlet excitons, allowing their internal quantum efficiency to reach nearly 100 %. The EU-funded AIE-RTP-PLED project plans to develop polymers that demonstrate room-temperature phosphorescence and aggregation-induced emission. Polymers combining these properties demonstrate great potential for use as high-efficiency emitters in low-cost solution-processed OLEDs. Show the project objective Hide the project objective Objective Organic light-emitting diodes (OLEDs) as displays and luminaires have generated enormous attention because of their unique advantages compared to other lighting and display technologies. These include the capacity to fabricate ultra-thin, flexible and transparent devices that additionally have a much lower power consumption. Limited by the electron spin statistics, the maximum internal quantum efficiency (IQE) of conventional fluorescent OLEDs is only 25%. In contrast, thermally activated delayed fluorescence (TADF) can theoretically realize 100% IQE by recruiting triplet excitons and converting them into singlet excitons via reverse intersystem crossing. Most TADF materials must be doped into a rigid host matrix in order to suppress aggregation-caused quenching (ACQ) and other nonradiative processes. An alternative mechanism where 100% IQE can be realized is room temperature phosphorescence (RTP). This proposal targets the development of polymers that are both RTP and show aggregation induced emission (AIE). This permits these materials to be used as high-efficiency emitters in low-cost solution-processed OLEDs. Due to the synergistic effect of AIE, RTP, and polymer, high-efficiency RTP materials can be developed in the amorphous state, a previously undocumented advance in materials development. Through this research proposal, a general road map for simple and high-efficiency PLEDs will be constructed based on AIE-RTP polymers. Fields of science natural scienceschemical sciencespolymer sciences Keywords Aggregation-induced emission room-temperature phosphorescence luminescent polymers light-emitting diodes organic semiconductors Programme(s) H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions Main Programme H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility Topic(s) MSCA-IF-2019 - Individual Fellowships Call for proposal H2020-MSCA-IF-2019 See other projects for this call Funding Scheme MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF) Coordinator THE UNIVERSITY COURT OF THE UNIVERSITY OF ST ANDREWS Net EU contribution € 212 933,76 Address North street 66 college gate KY16 9AJ St andrews United Kingdom See on map Region Scotland Eastern Scotland Clackmannanshire and Fife Activity type Higher or Secondary Education Establishments Links Contact the organisation Opens in new window Website Opens in new window Participation in EU R&I programmes Opens in new window HORIZON collaboration network Opens in new window Other funding € 0,00
