August 11, 2025Applied SciencesOpen Access

The Effect of Cs-Controlled Triple-Cation Perovskite on Improving the Sensing Performance of Deep-Ultraviolet Photodetectors

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Fabricated UVC photodetector shows improved responsivity and detectivity with Cs doping, indicating enhanced stability and performance.

Optimized Cs concentration led to a responsivity of 58.2 mA/W for the UVC photodetector, enhancing performance.
The detectivity of 3.52 × 10^14 Jones indicates a significant improvement over conventional photodetector structures.
Doping with Cs improved the crystallinity and phase stability, resulting in enhanced electron mobility for better detection.
Assessment of the perovskite films focused on the effect of Cs concentration, highlighting the optimal composition for device efficiency.

Kim et al. (2025) studied this question.

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