Fig. 1. (a) Normalized absorption spectra of BDP and 2I-BDP in methanol. (b) Photoluminescence (PL) spectra of BDP and 2I-BDP in methanol. Inset is their digital photos irradiated by corresponding absorption maxima. (c) Time-resolved photoluminescence decay transients of BDP and 2I-BDP in the specific emission ranges. The optical excitation is performed with 650 nm pump pulses (50 fs, 50 MHz). (d) Characteristic 1O2 emission of BDP and 2I-BDP in the deuterated method.
