Bis(arylimidazole) Iridium Picolinate Emitters and Preferential Dipole Orientation in Films

Aron J. Huckaba, Alessia Senes, Sadig Aghazada, Azin Babaei, Stefan C.J. Meskers, Iwan Zimmermann, Pascal Schouwink, Natalia Gasilova, René A.J. Janssen, Henk J. Bolink, Mohammad Khaja Nazeeruddin

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


The straightforward synthesis and photophysical properties of a new series of heteroleptic iridium(III) bis(2-arylimidazole) picolinate complexes are reported. Each complex has been characterized by nuclear magnetic resonance, UV-vis, cyclic voltammetry, and photoluminescent angle dependency, and the emissive properties of each are described. The preferred orientation of transition dipoles in emitter/host thin films indicated more preferred orientation than homoleptic complex Ir(ppy)3.

Original languageEnglish
Pages (from-to)2673-2682
Number of pages10
JournalACS Omega
Issue number3
StatePublished - Mar 31 2018

Bibliographical note

Funding Information:
The authors acknowledge SNSF NRP 70 project; number: 407040 154056, European Commission H2020-ICT-2014-1, SOLEDLIGHT project, grant agreement no.: 643791 and the Swiss State Secretariat for Education, Research and Innovation (SERI), and CTI 15864.2 PFNM-NM, the HZB-HU Graduate School “hybrid4energy,” and Solaronix, Aubonne, Switzerland. A.H. acknowledges support from special funding for energy research, managed by Prof. Andreas ZÜTTEL, Funds no. 563074. Part of work was performed in the framework of the TripleSolar (ERC Adv grant no. 339031) project, and received funding from the Ministry of Education, Culture and Science (Gravity program 024.001.035).

Publisher Copyright:
© 2018 American Chemical Society.

ASJC Scopus subject areas

  • Chemistry (all)
  • Chemical Engineering (all)


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