Cudré, Yanouk (2017). Tris-heteroleptic iridium complexes for white emission. University of Birmingham. Ph.D.
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Cudré17PhD.pdf
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Abstract
Within the past decades, extensive research has been focusing on developing electroluminescent technologies (OLED and LEC). Especially, a lot of effort has been dedicated to the search a efficient phosphorescent materials with highly tuneable emission maxima bearing l a te transition metal atoms. Emitters such as cyclometalated idirium complexes have been proven to be very successful in this regards exhibiting colours from blue to red and being successfully applied in electroluminescent technologies. However, in order to decrease the manufacturing cost of these technologies, a single-centre white emitting material is highly desirable.
In this context, this work investigates a new family of complexes bearing three different bidentate ligands known as tris-heteroleptic complexes to develop an emitter with a broad emission profile that would result in a white colour. Eighteen new tris-heteroleptic complexes with unprecedented ligand configurations have been synthesised by mixing different kind of ligand such as phenylpyridines (ppy), phenylpyrazo les (ppz) and phenylimidazoles (pim). This resulted in significant emission broadening with FWHM values up to nearly 6000 em- 1.
| Type of Work: | Thesis (Doctorates > Ph.D.) | |||||||||
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| Award Type: | Doctorates > Ph.D. | |||||||||
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| College/Faculty: | Colleges (2008 onwards) > College of Engineering & Physical Sciences | |||||||||
| School or Department: | School of Chemistry | |||||||||
| Funders: | None/not applicable | |||||||||
| Subjects: | Q Science > QD Chemistry T Technology > TP Chemical technology |
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| URI: | http://etheses.bham.ac.uk/id/eprint/7659 |
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