A figure-of-merit-based framework to evaluate photovoltaic materials

2024/04/23 by Andrea Crovetto, Crovetto, Andrea · 1 citation
#cond-mat.mtrl-sci #physics.app-ph

paper · pdf · doi:10.48550/arxiv.2404.14732

Abstract

I propose a general quantitative framework to evaluate the quality, track the historical development, and guide future optimization of photovoltaic (PV) absorbers at any development level, both lab-made and computer-simulated. The framework is centered around a PV figure of merit designed to include efficiency limitations that are not captured by classic detailed balance methods derived from the Shockley-Queisser limit. A more stringent set of figure-of-merit-driven efficiency limits are calculated for 28 experimentally synthesized PV absorbers and 10 PV computationally modeled absorbers. Among early-stage absorbers, this analysis reveals very large differences in their likelihood of achieving high PV efficiencies in the future. Since the proposed figure of merit is instantly evaluated from a single equation, it can be a suitable objective function for closed-loop research on PV materials in autonomous labs, while also providing a quantitative bridge between computationally determined material properties and PV efficiency.

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