Perovskite Photodetection Technologies and Applications

Metal halide perovskites have emerged as highly versatile semiconductors for photodetection, combining strong light absorption, long carrier diffusion lengths and solution-processable fabrication. Their tunable bandgaps, adjustable through composition and dimensionality, support detection across ultraviolet, visible and near-infrared wavelengths. Advances in crystal growth and thin-film engineering have driven improvements in sensitivity, speed and stability, enabling applications in imaging arrays, environmental sensing and flexible electronics. Moreover, the integration of perovskite photodetectors with complementary technologies—such as organic bulk heterojunctions, quantum dots or inorganic substrates—has broadened their spectral response and enhanced charge transport. Recent breakthroughs in self-powered operation, narrowband selectivity and multifunctional displays illustrate the growing maturity of perovskite devices. Practical deployments now range from bio-inspired cameras to large-area sensor panels. Continued research focuses on mitigating long-term degradation, reducing toxic lead content and refining scalable manufacturing routes, with the goal of translating laboratory performance into commercial systems for communications, healthcare monitoring and environmental surveillance.

Research from Nature Portfolio

Innovations in photo-responsive light-emitting diodes exploit perovskite electroluminescence to realise multifunctional displays capable of image sensing, ambient-light detection and fingerprint mapping within a single pixel array. These devices combine display and photovoltaic functions, achieving efficient light-to-electricity conversion without additional sensors. Seminal work on large-area planar-integrated single-crystalline films has demonstrated mobility and diffusion lengths comparable to bulk crystals, yielding photodetectors with gain exceeding 10^4 electrons per photon and gain-bandwidth products above 10^8 Hz. Two-dimensional perovskite single crystals have enabled filterless narrowband detectors by harnessing self-trapped states, achieving full-width at half-maximum responses below 20 nm in the blue region and external quantum efficiencies above 200%. These foundational approaches underpin the design of high-performance, spectrally selective perovskite sensors.

Perovskite Photodetection Technologies and Applications publication trend

The graph below shows the total number of articles in perovskite photodetection technologies and applications across all publications each year (not limited to Nature Index journals).

Technical terms

Perovskite: A crystal structure of formula ABX₃, where A and B are cations and X is an anion, noted for excellent optoelectronic properties.

Photodetector: A device that converts incident photons into an electrical signal, characterised by metrics such as responsivity and detectivity.

External quantum efficiency (EQE): The ratio of collected charge carriers to incident photons, expressed as a percentage.

Responsivity: The electrical output per unit optical input (A/W), indicating a detector’s sensitivity.

Detectivity (D*): A normalised figure of merit (Jones) that accounts for noise, bandwidth and detection area, reflecting a detector’s ability to discern weak signals.

Heterojunction: An interface between two materials with differing electronic properties, used to improve charge separation and transport.

References

1. A multifunctional display based on photo-responsive perovskite light-emitting diodes. Nature Electronics (2024).
2. Planar-integrated single-crystalline perovskite photodetectors. Nature Communications (2015).
3. Self-trapped state enabled filterless narrowband photodetections in 2D layered perovskite single crystals. Nature Communications (2019).
4. Rational composition engineering for high‐quality Pb–Sn photodetector toward sensitive near‐infrared digital imaging arrays. InfoMat (2024).
5. Perovskite-based color camera inspired by human visual cells. Light: Science & Applications (2023).