Project description
Innovative solution-processable blue TADF emitters
Advances in vacuum-deposited organic light-emitting diodes (OLEDs) have facilitated their commercialisation as displays in small portable devices. However, the advanced emitters in these devices have weaknesses in terms of performance and sustainability. Although thermally activated delayed fluorescent (TADF) emitters can solve these issues, vacuum-deposition fabrication processes are costly and a source of waste. Solution-processed OLEDs, particularly blue OLEDs, typically have poor device performance in terms of stability and external quantum efficiency (EQE). The EU-funded TADF-DLC-OLEDs project will use an innovative method to develop solution-processable blue TADF emitters based on discotic liquid crystalline (DLC) molecules. These innovative emitters will for the first time provide horizontal alignment in solution-processed films, improving light outcoupling efficiency and hence EQE.
Objective
Recent years have seen tremendous advances in the area of vacuum-deposited organic light-emitting diodes (OLEDs) and these are now commercialized as displays in small portable devices, flat-panel full-colour televisions, and solid-state lighting sources for the automotive industry. The state-of-the-art emitters in these devices consist of a combination of fluorescent and phosphorescent materials, each of which has weaknesses in terms of performance and sustainability. Thermally activated delayed fluorescent (TADF) emitters offer the potential to overcome these weaknesses. Vacuum-deposition fabrication processes are, however, both costly and materials-wasteful and it is also difficult and expensive to fabricate large-area pixels given the size of the evaporator. Solution-processed OLEDs addresses these detracting features of the fabrication process. The state-of-the-art solution-processed OLEDs, and in particular blue OLEDs typically show poor device performance both in terms of stability and external quantum efficiency (EQE) that is significantly worse than vacuum-deposited devices. This proposal addresses these specific issues using an innovative approach. We will develop solution-processable blue TADF emitters based on discotic liquid crystalline (DLC) molecules, which we contend will provide horizontal alignment in solution-processed films, something not possible at present, in order to improve the light-outcoupling efficiency and hence the EQE.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences physical sciences condensed matter physics solid-state physics
- engineering and technology electrical engineering, electronic engineering, information engineering electronic engineering digital electronics
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions
MAIN PROGRAMME
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H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility
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Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)
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Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) H2020-MSCA-IF-2020
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
KY16 9AJ ST ANDREWS
United Kingdom
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.