Fig. 3: Spectroscopic properties of 3a–3k and H4.
From: Upconversion NIR-II fluorophores for mitochondria-targeted cancer imaging and photothermal therapy
a Absorption wavelength and b emission wavelength of 3a–3f in dichloromethane. c Absorption wavelength and d emission wavelength of 3g–3k and H4 in dichloromethane.
