Shamrock sr 303i

QY of PUC was measured with a detector constructed with a spectroscopy camera (Andor iDus DU420A Si detector, ANDOR) coupled to spectrograph (Shamrock SR303i, ANDOR) and samples consisting of TES-ADT and triplet sensitizers (i.e., PdTPBP or PbS QDs) filled in a 1 mm path length quartz cuvette excited by CW laser. The QY (Φ_UC) was calculated with the following eqn (2), where Φ_r is the QY of emission from the reference, A_i is the absorption at the excitation wavelength, F_i is the integrated emission, and η_i is the refractive index of the solvent, subscripts x and r designate the sample and reference, respectively. Rhodamine B in degassed ethanol with an excitation at 520 nm was applied to the reference (Φ_r = 0.97)31 in this work. The emitted light (F_x) was collected between 545 nm and 630 nm with an excitation at 647 nm from a CW laser (Coherent; OBIS) passing through 647 ± 10 nm band pass filter (for PdTPBP) or between 545 nm and 800 nm with an excitation at 1064 nm from a CW laser (Thorlabs) passing through 1000 nm long pass filter (for PbS QDs) from the side facing the detector. The emission from the sample passed through a 850 nm short pass filter before the detector for the 1064 nm excitation. The excitation power was controlled with a ND filter.