Table 1.

Photophysical properties of Ir(mCPDTiq)₂tmd and Ir(mCPDTiq)₂acac.

NIR dopant	$\mathrm{\lambda }$ abs (nm) (CH2Cl2/thin-film)	PL (nm) (CH2Cl2/thin-film)	${\varphi }_p$ a	${\tau }_{\mathit{rad}}$ b ($\mu \mathrm{s}$)	$k_r$ c (105/s)	$k_{\mathit{nr}}$ d (105/s)	HOMOe/LUMOf (eV)
Ir(mCPDTiq)2tmd	510/430	760/760	0.032	0.39	0.82	24.8	− 5.23/− 3.15
Ir(mCPDTiq)2acac	530/430	755/760	0.030	0.32	0.94	30.3	− 5.21/− 3.13

^aPLQY was measured in vacuum-deposited thin-film (50 nm).

^bRadiative decay rate measured in dichloromethane (DCM) .

^c$k_r={\varphi }_p/{\tau }_{\mathit{rad}}$.

^d$k_{\mathit{nr}}=(1-{\varphi }_p)/{\tau }_{\mathit{rad}}$.

^eHOMO was recorded using electrochemical CV method.

^fLUMO was obtained through E_g and HOMO level.