White Light-Emitting Electrochemical Cells Based on Deep-Red Cu(I) Complexes
Fresta E, Weber M, Fernandez-Cestau J, Costa RD (2019)
Publication Type: Journal article
Publication year: 2019
Journal
Abstract
The synthesis and characterization, as well as photoluminescent and electrochemical features of a series of ionic copper(I) complexes-, i.e., [Cu((NN)-N-<^>)((PP)-P-<^>)](+), where (NN)-N-<^> is 4,4 '-diethylester-2,2 '-biquinoline (dcbq) and (PP)-P-<^> is bis-triphenylphosphine, bis[2-(diphenylphosphino)phenyl)ether] (POP), or 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene (Xantphos)-are reported along with their application to achieve both deep-red and white light-emitting electrochemical cells (LECs). In short, the first deep-red Cu(I)-based LECs featuring high irradiances (approximate to 100 mu W cm(-2)) and excellent color stability (x/y CIE color coordinates of 0.66/0.32) over days are reported. This is achieved by comparing the electroluminescent behavior of this series of complexes with respect to the irradiance and stability, as well as the impact of introducing supporting electrolytes on the device performance. This is rationalized using spectroscopic and electrochemical studies. Finally, the first white-emitting LEC is manufactured with red-emitting copper(I) complexes, achieving x/y CIE color coordinates of 0.31/0.32 and a high color rendering index of 92.
Authors with CRIS profile
Michael Weber
Lehrstuhl für Physikalische Chemie I
Rubén Dario Costa Riquelme
Lehrstuhl für Physikalische Chemie I
Involved external institutions
Spain (ES)How to cite
APA:
Fresta, E., Weber, M., Fernandez-Cestau, J., & Costa, R.D. (2019). White Light-Emitting Electrochemical Cells Based on Deep-Red Cu(I) Complexes. Advanced Optical Materials. https://doi.org/10.1002/adom.201900830
MLA:
Fresta, Elisa, et al. "White Light-Emitting Electrochemical Cells Based on Deep-Red Cu(I) Complexes." Advanced Optical Materials (2019).
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