NANOSTRUCTURED PEROVSKITE

摘要

The invention provides an optoelectronic device comprising a porous material and a materialwith perovskite crystal structure in contact with the porous material. The porous material is further characterised in that the pores present a well defined averagesize,in the range of 1-100nm, and characterised in thatit is anordered network which shows a periodicity in one, two or three spatial directions. The perovskite material is infiltrated within the porous material, resulting in a mesostructured and ordered perovskite material. This spatially confined perovskiteshows a luminescent emission whose range of wavelengths can be modified changing the pore size of the mesostructure. This invention solves the problem of tuning the emission of perovskite materialswithout varying theircomposition.The invention can be used as both light emitting and photovoltaic devices.