Development of a Single-Layer TiO₂ Photoanode for Dye-Sensitized Solar Cell (DSSC)

Dye-sensitized solar cells (DSSC) are considered a promising low-cost and flexible alternative to conventional silicon-based photovoltaic technologies. This work reports the fabrication and analysis of DSSC based on a single-layer nanostructured TiO₂ photoanode. The proposed cell architecture is simplified by eliminating the conventional double-layer configuration, which reduces fabrication complexity and material consumption. The electrochemical and photovoltaic characteristics of the devices were systematically investigated. The energy conversion efficiency of the developed single-layer design is approximately twice that of a conventional two-layer cell. The performance enhancement is attributed to reduced internal resistance, improved electron transport, and suppressed charge recombination. The results demonstrate the potential of simplified single-layer DSSC architectures for transparent, flexible, and low-cost energy-harvesting applications.

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