Sample I-170 does not show any crystallographic arrangement due to the irregular morphology of the NPls. However, the large size of the particles in this sample allows the acquisition of an intense (101) diffraction of the perovskite crystalline structure. In fact, as mentioned before, the (020) and (101) diffractions are convoluted in this peak, and their relative intensity also changes with the thickness of the sample (Figure ), corroborating our assignment of the thickness of the PNPls in the [0k0] direction.