Tandem photovoltaic devices: more than one way to make a solar cell

Emily L. Warren

doi:10.1117/12.2661686

22 March 2023 Tandem photovoltaic devices: more than one way to make a solar cell

Emily L. Warren

Proceedings Volume PC12416, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices XII; PC1241601 (2023) https://doi.org/10.1117/12.2661686
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

Tandem or multijunction photovoltaic devices cells offer the clearest path to high efficiency and high areal energy density solar energy conversion. Theoretically and at the laboratory scale, increasing the number of junctions is a simple way to maximize the amount of electricity that can be produced from a small-area device. However, there are multiple approaches to electrically and optically interconnecting the sub-cells in a tandem stack that have different trade-offs in terms of efficiency, cost, and manufacturability. Three terminal (3T) tandems have attracted a great deal of interest at the laboratory scale for their high potential efficiencies and polarity-changing interconnections. However, the coupled nature of 3T devices adds a degree of complexity to the devices themselves and the ways that their performance can be measured and reported. In this talk, I will discuss the recent progress in the field of 3T tandems, including our recently proposed taxonomy for naming 3T devices, experimental demonstrations, robust measurement approaches, and interconnecting 3T cells into strings.

Conference Presentation

Citation Download Citation

Emily L. Warren "Tandem photovoltaic devices: more than one way to make a solar cell", Proc. SPIE PC12416, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices XII, PC1241601 (22 March 2023); https://doi.org/10.1117/12.2661686

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