“…[11,12] This phenomenon has been termed aggregation-induced enhanced emission (AIEE), attributed to the suppression of non-radiative pathways for relaxation of the excited state through aggregation-assisted charge transfer, intramolecular rotations, p-p stacking or a combination of these. [12,13,17] The conditions under which AIEE onset first occurs can potentially provide fundamental insight in how solid-state particle growth affects PL, such as the effects of particle size and the surrounding environment. [13,15,16] AIEE occurring just at onset of aggregation has been associated with hypsochromic shift of the emission maximum at a slightly increased intensity, followed by a large rise in emission intensity with a stronger hypsochromic shift.…”