Halide Perovskites: A Progress Report on Photon Interconversion

Photon interconversion generally describes processes which change the wavelength of the emitted light upon irradiation, with a gain in photon energy (upconversion), or a splitting of the incident photon energy to create multiple photons (downconversion). The focus of this progress report is placed on halide perovskite materials and their role in upconversion by triplet-triplet annihilation and downconversion via singlet fission in organic semiconductors, and a short perspective is given into quantum cutting and lanthanide-based upconversion applications. The current advances are highlighted regarding halide perovskites and perovskite-inspired materials with varying framework and material dimensionalities, as relating to photon interconversion processes. The majority of the literature is based on 3D perovskites, which leaves room for growth for perovskite materials with varying dimensionalities. Gaps in the current field are emphasized, leading to a bright outlook on future possibilities of coupling perovskites to photon interconversion mechanisms, which can open the door for future breakthroughs in this field.

Automated summary

This article focuses on photon interconversion processes, particularly discussing the role of halide perovskite materials in photon energy upconversion and downconversion, as well as singlet fission in organic semiconductors, with a brief outlook on future applications. Current progress emphasizes research on halide perovskites and related materials with different frameworks and dimensionalities for photon interconversion processes. Opportunities for growth in perovskite materials with varying dimensionalities are highlighted, with a positive outlook on future possibilities of coupling perovskites to photon interconversion mechanisms.