Transport and recombination limitations in dye solar cells at low illumination levels
Juan Antonio Anta a
a Universidad Pablo de Olavide de Sevilla
Materials for Sustainable Development Conference (MATSUS)
Proceedings of MATSUS Spring 2024 Conference (MATSUS24)
#ProMatSol - Exploring Material Properties for Advanced Solar Energy Applications
Barcelona, Spain, 2024 March 4th - 8th
Organizers: Marina Freitag and Elizabeth Gibson
Invited Speaker, Juan Antonio Anta, presentation 465
DOI: https://doi.org/10.29363/nanoge.matsus.2024.465
Publication date: 18th December 2023

Electron collection in dye-sensitized solar cells (DSCs) is determined by a delicate equilibrium between electronic transport within the mesoporous oxide layers and recombination losses. While state-of-the-art DSC devices have shown quantitative collection under standard 1-sun conditions, the nonlinear nature of the trapping/detrapping dynamics in the oxide layer in relation to the overall electron density may result in suboptimal performance under the lower illumination levels commonly encountered in indoor settings. In this study, we thoroughly examine the key factors influencing electron collection with respect to light intensity using impedance spectroscopy and numerical analysis

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