Characterization of the excimers of poly(N-vinylcarbazole) using TRANES

► TRES and TRANES are exploited to decipher the emission of PNVC in toluene and water. ► The emission comes from two excimers: partially overlapped and sandwich type. ► TRANES shows single isoemissive point establishing presence of two excimers only. ► Sandwich excimer is formed from the partially overlapped one in the excited state. ► Existence of an equilibrium is established.