Issue 12, 2023

Triplet–triplet annihilation mediated photon upconversion solar energy systems

Abstract

Solar energy harvesting is among the best solutions for a global transition toward carbon-neutral energy technologies. The existing solar energy harvesting technologies like photovoltaics (PV) and emerging molecular concepts such as solar fuels and molecular solar thermal energy storage (MOST) are rapidly developing. However, to realize their full potential, fundamental solar energy loss channels like photon transmission, recombination, and thermalization need to be addressed. Triplet–triplet annihilation mediated photon upconversion (TTA-UC) is emerging as a way to overcome losses due to the transmission of photons below the PV/chromophore band gap. However, there are several challenges related to the integration of efficient solid-state TTA-UC systems into efficient devices such as: wide band absorption, materials sustainability, and device architecture. In this article, we review existing work, identify and discuss challenges as well as present our perspective toward possible future directions.

Graphical abstract: Triplet–triplet annihilation mediated photon upconversion solar energy systems

Article information

Article type
Review Article
Submitted
19 Jan 2023
Accepted
27 Mar 2023
First published
03 Apr 2023
This article is Open Access
Creative Commons BY license

Mater. Chem. Front., 2023,7, 2297-2315

Triplet–triplet annihilation mediated photon upconversion solar energy systems

L. Naimovičius, P. Bharmoria and K. Moth-Poulsen, Mater. Chem. Front., 2023, 7, 2297 DOI: 10.1039/D3QM00069A

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