Photobatteries for solar energy storage and conversion
DOI:
https://doi.org/10.29105/ingenierias29.101-1011Keywords:
Photobatteries, photoelectrode, heterojunction, TiO₂–Fe₂O₃, energy storageAbstract
Photobatteries enable simultaneous solar energy conversion and storage in a single device. In this work, a lithium-ion photobattery using a TiO₂–Fe₂O₃ (1:1) electrode prepared by mechanical mixing was evaluated. XRD, SEM, UV–Vis, and Mott–Schottky analyses confirmed the formation of a heterojunction that improves charge separation and visible-light absorption. Under illumination (1 sun), the specific capacity increased from 160 to 220 mAh g⁻¹. This behavior is attributed to photogenerated charges that enhance electrochemical reactions, demonstrating the potential of this material for energy storage applications.
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Copyright (c) 2026 Luis Antonio Solís-Balderas, Alfredo Romero-Contreras, Eduardo M. Sanchez Cervantes
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