Halide Perovskites: A Progress Report on Photon Interconversion. Issue 18 (10th November 2020)

• Record Type: Journal Article
• Authors: Wieghold, Sarah; VanOrman, Zachary A.; Nienhaus, Lea
• Is Part Of: Advanced optical materials. Volume 9:Issue 18(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2020-11-10
• Subjects: downconversion -- halide perovskites -- singlet fission -- triplet–triplet annihilation -- upconversion; Optical materials -- Periodicals; Photonics -- Periodicals; 620.11295
• DOI: 10.1002/adom.202001470
• Languages: English
• ISSNs: 2195-1071

Abstract

Abstract: 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. Abstract : Photon interconversion, or the process of manipulating the wavelength of incident light, could greatly improve the efficiencies of current technologies. Halide perovskite materials are an emerging and exciting material capable of both sensitizing photon upconversion and coupling to downconversion materials. In this progress report, the current field (and bright future) of perovskite‐based photon interconversion systems is described.