Fig. 4: Investigating optoelectronic properties and interactions.

a Steady-state PL spectra (λex = 460 nm) and b PL intensity vs. s-HAP content from a. c TRPL data. d TRPL time constants from fits in c. XPS (e) Pb 4f and (f) I 3d core level spectra.
a Steady-state PL spectra (λex = 460 nm) and b PL intensity vs. s-HAP content from a. c TRPL data. d TRPL time constants from fits in c. XPS (e) Pb 4f and (f) I 3d core level spectra.