Article comprising composite particles in an organic polymer matrix comprising a cured thiol-alkene resin having a Tg>20° C., the composite particles comprising a hydrophobic nonmetallic inorganic matrix, ligands, and quantum dots, wherein the hydrophobic nonmetallic inorganic matrix is present in the composite particles in an amount of up to 40 volume percent. Exemplary articles described herein can be made for use for display applications such as films, LED caps, LED coatings, LED lenses, and light guides. Exemplary articles described herein can be made for use for non-display applications such as security applications where quantum dot phosphors are used to provide fluorescence at selected or tailored wavelengths. In such uses, the organic polymer matrix could be a label or a coating on a label, or other articles such as a card or tag.