Change point analysis of matrix dependent photoluminescence intermittency of single CdSe/ZnS quantum dots with intermediate intensity levels

► We study single blinking CdSe/ZnS quantum dots in polystyrene and polyvinyl alcohol. ► The blinking dynamics were analysed with respect to intermediate intensity levels. ► The On-times show a matrix dependent deviation from a truncated power law. ► Deviation relates to well defined intensities, intensity jumps and state dwell times. ► Quantum dots are coupled to hydroxyl groups which induce hole traps.