Colloidal quantum dots (QDs) have been extensively used for their size dependent optoelectronic properties resulting in broadband detection of electromagnetic radiation. While compatible with flat phototransistors, applications beyond 2D architectures remain challenging. Conventionally structure dependent photoluminescence (PL) enhancement requires strictly plasmonic or high refractive index dielectric metamaterials. Here, we report on a 1600% structure dependent PL enhancement with the aid of low refractive index ZnO coated laser-printable 3D infrared (IR) metamaterials. We overcome current material limitations utilising the 3D nature of metamaterial structure to increase surface interaction between incoming radiation and PbS QDs dramatically. Our findings not only shed light on conformal QD coating over curved surfaces of 3D structures, but also open new avenues in selecting materials with broader potential use in optoelectronic and nanophotonic applications.