1 Supporting Information The Nature of Non-FRET Photoluminescence Quenching in Nanoassemblies from Semiconductor Quantum Dots and Dye Molecules Aleksander P. Stupak a , Thomas Blaudeck b# , Eduard I. Zenkevich c , Stefan Krause b,& , and Christian von Borczyskowski b* a B. I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Prospect Nezavisimosti 70, 220072 Minsk, Belarus b Institute of Physics and Center for Nanostructured Materials and Analytics, Technische Universität Chemnitz, Reichenhainer Str. 70, D-09107 Chemnitz, Germany c Department of Information Technologies and Robotics, National Technical University of Belarus, Prospect Nezavisimosti 65, 220013 Minsk, Belarus # Present address: Department of Electrical Engineering and Information Technology, Center for Microtechnologies, Technische Universität Chemnitz, Reichenhainer Str. 70, D-09107 Chemnitz, Germany & Present address: Department of Chemistry, University of Copenhagen, Universitätsparken 5, 2100 Copenhagen, Denmark * Corresponding Author: C. von Borczyskowski: borczyskowski@physik.tu-chemnitz.de S1 Analysis of QD PL Intensity Quenching For the analysis of the PL intensity quenching as a function of the number of porphyrin molecules per QD, the well-known Stern-Volmer formalism [1] was modified. In our more generalized approach, the luminescence quenching can be described by . (S1) dx x K x I I      ) ( 1 ) ( 0 0 (x) and represent the integrated PL intensity of the QD in presence ( (x)) and absence I I 0 I ( ) of the chromophores, respectively. In this approach, the Stern-Volmer function I 0 ) ( x K depends explicitly on the ratio x of (m-Pyr) 4 H 2 P to QD molar concentrations and can be expressed by the first derivative K SV D (x of the experimental data plotted in conventional Stern-Volmer representation [2, 3]. “D” stands for the QD as a possible donor in FRET related processes. Using this approach, the corresponding K SV A values have been derived from the acceptor A (H 2 P) fluorescence enhancement measurements at every titration step. References [1] B. Valeur. Wiley-VCH (2002) Weinheim. Electronic Supplementary Material (ESI) for Physical Chemistry Chemical Physics. This journal is © the Owner Societies 2018