Extended Data Fig. 3: Experimental photoluminescence (PL) spectra of λ-Ti3O5 and rutile-TiO2 at room temperature (excitation light: 344 nm, emission lights: 360–2250 nm).
From: Flatband λ-Ti3O5 towards extraordinary solar steam generation
a, 360–800 nm. b, 800–1600 nm. c, 1200–2250 nm. More details are given in Supplementary Information 2.4.
