Highly Emissive Red Heterobimetallic IrIII/MI (MI = CuI and AuI) Complexes for Efficient Light-Emitting Electrochemical Cells
Source abstract
Abstract
A class of four bright heterobimetallic emitters is presented, which features both a chromophoric [Ir(C^N)2] center and a positively charged, linear bis-NHC M(I) ancillary moiety bridged through a Janus-type ligand. An in-depth investigation of their optical and electrochemical properties is also reported, which are further elucidated by means of time-dependent density functional theory including spin–orbital coupling effects. All complexes display efficient, vibrant red phosphorescence with a higher quantum yield and a faster radiative rate constant compared to the mononuclear parental complexes. This effect was elucidated in terms of better S–T excited-state mixing as well as increased rigidity favored by the multimetallic architecture. Finally, their electroluminescence performances are investigated by using these bimetallic complexes as electroactive materials in light-emitting electrochemical cells, achieving external quantum efficiency values up to 6% and resulting in among the most efficient ones for red emitters. This result is also attributable to the charge-neutral nature of an emitting Ir complex bearing a charged, wider energy gap, metal complex as an ancillary moiety.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Organic Light-Emitting Diodes Research · N-Heterocyclic Carbenes in Organic and Inorganic Chemistry · Organometallic Complex Synthesis and Catalysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS) UMR7504, Université de Strasbourg & CNRS, 23 rue du Loess, 67083 Strasbourg, France
Institute of Lighting and Energy Photonics, National Yang Ming Chiao Tung University, Tainan 71150, Taiwan
Laboratoire de Chimie Quantique, Institut de Chimie UMR7177, CNRS-Université de Strasbourg, 4 Rue Blaise Pascal, 67070 Strasbourg, France
LCC-CNRS UPR8241, Université de Toulouse, CNRS, 205 route de Narbonne, 31077 cedex 4 Toulouse, France
Department of Applied Chemistry, Providence University, Taichung 43301, Taiwan
Department of Molecular Sciences and Nanosystems, Ca’ Foscari University of Venice, Via Torino 155, 30172 Venezia, Italy
Funding
Agence Nationale de la Recherche · Universit? de Strasbourg · Ministry of Education · Centre International de Recherche aux Fronti?res de la Chimie · Association Instituts Carnot · Centre National de la Recherche Scientifique
References (84)
Show source-provided references
1. Armaroli N. · 2016
2. Costa R. D. · 201710.1007/978-3-319-58613-7 ↗
3. 10.1039/C7TC00202E10.1039/C7TC00202E ↗
4. 10.1126/science.269.5227.108610.1126/science.269.5227.1086 ↗
5. 10.1038/nmat212810.1038/nmat2128 ↗
6. 10.1038/nmat202110.1038/nmat2021 ↗
7. 10.1002/anie.20120147110.1002/anie.201201471 ↗
8. 10.1021/acs.inorgchem.7b0154410.1021/acs.inorgchem.7b01544 ↗
9. 10.1021/ic302695q10.1021/ic302695q ↗
10. 10.1021/ic100925310.1021/ic1009253 ↗
11. 10.1021/cm402473j10.1021/cm402473j ↗
12. 10.1039/C4SC03942D10.1039/C4SC03942D ↗
13. 10.1021/jacs.6b1331110.1021/jacs.6b13311 ↗
14. 10.1039/c1jm12984h10.1039/c1jm12984h ↗
15. 10.1039/C7TC03110F10.1039/C7TC03110F ↗
16. 10.1021/ja076051e10.1021/ja076051e ↗
17. 10.1002/chem.20180590210.1002/chem.201805902 ↗
18. 10.1002/chem.20190288710.1002/chem.201902887 ↗
19. 10.1002/adfm.20190689810.1002/adfm.201906898 ↗
20. 10.1080/0026897700010017110.1080/00268977000100171 ↗
21. 10.1021/ic00159a02110.1021/ic00159a021 ↗
22. 10.1021/j100229a01010.1021/j100229a010 ↗
23. 10.1021/j100407a04610.1021/j100407a046 ↗
24. 10.1016/j.ccr.2018.04.00310.1016/j.ccr.2018.04.003 ↗
25. 10.1016/j.ccr.2018.01.01710.1016/j.ccr.2018.01.017 ↗
26. 10.1039/C8CS00660A10.1039/C8CS00660A ↗
27. 10.1016/j.poly.2017.11.02910.1016/j.poly.2017.11.029 ↗
28. 10.1039/D1CC01077H10.1039/D1CC01077H ↗
29. 10.1021/acs.inorgchem.0c0246910.1021/acs.inorgchem.0c02469 ↗
30. 10.1021/acs.jpclett.9b0300210.1021/acs.jpclett.9b03002 ↗
31. 10.1021/acsami.6b1244610.1021/acsami.6b12446 ↗
32. 10.1039/C6DT00881J10.1039/C6DT00881J ↗
33. 10.1039/C9TC02930C10.1039/C9TC02930C ↗
34. 10.1039/D0TC04881J10.1039/D0TC04881J ↗
35. 10.1039/D0DT00939C10.1039/D0DT00939C ↗
36. 10.1021/acsami.8b1892810.1021/acsami.8b18928 ↗
37. 10.1002/chem.20200276710.1002/chem.202002767 ↗
38. 10.1002/anie.20140747510.1002/anie.201407475 ↗
39. 10.1039/C7TC00628D10.1039/C7TC00628D ↗
40. 10.1002/chem.20100060010.1002/chem.201000600 ↗
41. 10.1039/C5DT04027B10.1039/C5DT04027B ↗
42. 10.1149/2.0161906jss10.1149/2.0161906jss ↗
43. 10.1246/bcsj.47.76710.1246/bcsj.47.767 ↗
44. 10.1016/j.ccr.2011.01.04210.1016/j.ccr.2011.01.042 ↗
45. Turro N. J. · 2010
46. 10.1021/acs.inorgchem.6b0109510.1021/acs.inorgchem.6b01095 ↗
47. Bard A. J. · 2000
48. 10.1021/acsami.9b2330010.1021/acsami.9b23300 ↗
49. 10.1016/j.orgel.2013.06.01510.1016/j.orgel.2013.06.015 ↗
50. 10.1016/j.orgel.2013.03.01510.1016/j.orgel.2013.03.015 ↗
51. 10.1039/C4CP05380J10.1039/C4CP05380J ↗
52. 10.1039/C5CP07065A10.1039/C5CP07065A ↗
53. 10.1002/cplu.20170045510.1002/cplu.201700455 ↗
54. 10.1002/adfm.20190678810.1002/adfm.201906788 ↗
55. 10.1016/j.orgel.2014.01.00110.1016/j.orgel.2014.01.001 ↗
56. Jia W.-L. · Dalton Trans. · 2006 · 35 · 172110.1039/b515675k ↗
57. 10.1016/j.synthmet.2008.03.01810.1016/j.synthmet.2008.03.018 ↗
58. 10.1016/j.tsf.2011.01.23510.1016/j.tsf.2011.01.235 ↗
59. 10.1021/ic501220410.1021/ic5012204 ↗
60. 10.1038/s41598-017-16133-710.1038/s41598-017-16133-7 ↗
61. 10.1039/C9DT00795D10.1039/C9DT00795D ↗
62. 10.1002/ejic.20200052810.1002/ejic.202000528 ↗
63. 10.1021/cm050986h10.1021/cm050986h ↗
64. 10.1016/j.orgel.2012.12.02610.1016/j.orgel.2012.12.026 ↗
65. 10.1039/C3TC31983K10.1039/C3TC31983K ↗
66. 10.1021/acsami.8b0817610.1021/acsami.8b08176 ↗
67. 10.1016/j.orgel.2019.10551510.1016/j.orgel.2019.105515 ↗
68. 10.1021/om100106e10.1021/om100106e ↗
69. 10.1039/C4CC08641D10.1039/C4CC08641D ↗
70. 10.1021/acsomega.8b0226810.1021/acsomega.8b02268 ↗
71. 10.1021/ja00728a00610.1021/ja00728a006 ↗
72. 10.1515/pac-2014-070610.1515/pac-2014-0706 ↗
73. 10.1038/nprot.2013.08710.1038/nprot.2013.087 ↗
74. 10.1016/j.ccr.2010.04.00610.1016/j.ccr.2010.04.006 ↗
75. 10.1021/ja971416o10.1021/ja971416o ↗
76. 10.1002/elan.20050341910.1002/elan.200503419 ↗
77. 10.1021/j100096a00110.1021/j100096a001 ↗
78. Van Lenthe E. · J. Comput. Chem. · 2002 · 24 · 114210.1002/jcc.10255 ↗
79. 10.1021/j100007a06210.1021/j100007a062 ↗
80. 10.1002/(SICI)1097-461X(1996)57:3<281::AID-QUA2>3.0.CO;2-U10.1002/(SICI)1097-461X(1996)57:3<281::AID-QUA2>3.0.CO;2-U ↗
81. 10.1063/1.206118710.1063/1.2061187 ↗
82. 10.1063/1.189914310.1063/1.1899143 ↗
83. 10.1021/jp308662x10.1021/jp308662x ↗
84. 10.1039/C8CP03008A10.1039/C8CP03008A ↗