Size-Dependent Non-FRET Photoluminescence Quenching in Nanocomposites Based on Semiconductor Quantum Dots CdSe/ZnS and Functionalized Porphyrin Ligands

<table>Comparison of QD PL quenching efficiencies <svg height="16.299999" id="M44" style="vertical-align:-3.39066pt" version="1.1" viewbox="0 0 28.325001 16.299999" width="28.325001" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg> values (2, right scale) estimated via the porphyrin sensitization effect for “QD-porphyrin” nanocomposites (CdSe/ZnS core diameter <svg height="16.487499" id="M46" style="vertical-align:-3.41931pt" version="1.1" viewbox="0 0 75.037498 16.487499" width="75.037498" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg> nm, 2 ZnS monolayers, H<sub>2</sub>P(m-Pyr)<sub>4</sub> porphyrin molecules) as function of the molar ratio <svg height="17.4125" id="M47" style="vertical-align:-4.19052pt" version="1.1" viewbox="0 0 175.45 17.4125" width="175.45" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg> in toluene at 295 K.</table>

International Journal of Spectroscopy

fig4

Figure 4

Figure 4: Size-Dependent Non-FRET Photoluminescence Quenching in Nanocomposites Based on Semiconductor Quantum Dots CdSe/ZnS and Functionalized Porphyrin Ligands 

Figure 4 | Size-Dependent Non-FRET Photoluminescence Quenching in Nanocomposites Based on Semiconductor Quantum Dots CdSe/ZnS and Functionalized Porphyrin Ligands 