Analyses of Charge Accumulation of PTzBT Ternary Polymer Solar Cells Using ESR Spectroscopy

phenomenon, we hypothesize that energy transfer from 1,2-dioxetanedione to DNSE occurred momentarily in the THF and water solution because of their miscibility. Note that, in highly polar solvents, the emission of DNSE was not visualized, probably because the rate of chemiluminescent reaction is too fast to visually detect the emission caused by the miscibility of their solvents with water in comparison with the case observed using low-polarity solvents. Moreover, no emission was observed with ethyl acetate, although it is immiscible with water. This is probably because the reaction of ethyl acetate with hydrogen peroxide was faster than the oxidation of bis(2,4,6-trichlorophenyl) oxalate. As a result, DNSE was not excited because 1,2-dioxetanedione was not produced.