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The researchers exploit lattice-anchoring-enhanced dynamic repair in organic–inorganic hybrid perovskites to demonstrate a single-crystal detector with a sensitivity of 165.6 μC mGy⁻¹ cm⁻³ and radiation stability under high-fluence 6-MeV X-rays (6.4 × 10¹¹ photons cm⁻²) and 1.2-MeV electrons (6 × 10¹⁶ electrons cm⁻²). The findings may have implications for diverse applications, including radiation therapy, astronomy and nuclear technology.

Liu et al. report the design of organic cation to selectively enhance in-plane distortion for localizing excitons and suppress out-of-plane and intra-octahedral distortions for minimizing the formation of self-trapped excitons, enabling 2D perovskites with fast X-ray scintillation response (0.62 ns) and high light yield (19,700 photons MeV⁻¹).

The researchers synthesize organic–inorganic hybrid inverse perovskites that exhibit excellent carrier lifetime and mobility–lifetime product and high resistivity, enabling stable X-ray detectors with performance arguably outperforming state-of-the-art perovskite single-crystal detectors.

Lead halide perovskites are widely used e.g. in solar cells and LEDs, but devices based on thermal properties have received little attention. Here, the authors take advantage of the thermal properties to fabricate an optoacoustic transducer with both broad bandwidth and high conversion efficiency.

Researchers overcome the typical scintillator trade-off between high efficiency and speed. In organic scintillators, researchers drove hot excitons into fast singlet emission states without involving the lowest triplet states, which led to a fast radiative lifetime and strong light yield that may be applicable to ultrafast detection and imaging.

In-sensor computing requires detectors with polarity reconfigurability and linear responsivity. Pang et al. report a CsPbBr3 perovskite single crystal X-ray detector for edge extraction imaging with a data compression ratio of 46.4% and classification task with an accuracy of 100%.

The film uniformity is essential to the fixed pattern noise (FPN) and resolution of X-ray detectors. Here the authors demonstrate the rheological engineering of the perovskite suspension to achieve low FPN of 1.39% and high resolution of 0.51 lp/pix.

Efficient light extraction in perovskite X/γ-ray scintillators is hindered by the small Stokes shift of exciton luminescence. Here, Jin et al. exploit the intrinsic strain in 2D perovskite as “self-wavelength shifting” to reduce the self-absorption effect without sacrificing the device response speed.

Ionic migration degrades not only the characteristics of halide perovskite solar cells, but also those of perovskite X-ray detectors. Here Yang et al. employ heteroepitaxial BiOBr to passivate Cs₂AgBiBr₆ double perovskite, which suppresses ionic migration and obtain high performance X-ray detectors.

Double perovskite Cs₂AgBiBr₆ single crystals are used to make a sensitive X-ray detector. The device exhibits a high sensitivity of 105 µC Gy_air ⁻¹ cm⁻² and a low detection limit of 59.7 nGy_airs⁻¹, and demonstrates long-term operational stability.

Multispectral images suffer of pixel and position mismatch, due to the multiple sensor approach. Here, Li et al., demonstrate a flexible PbS colloidal quantum dots (CQDs) photodiode array with a broadband response range from X-ray to near infrared, enabling multi-spectral images by one single sensor.

Thin-film photovoltaic devices are often based on toxic or rare materials. Here, Wang et al. grow oriented Sb₂Se₃ thin film on a ZnO buffer layer, and fabricate solar cells with a certified 5.9% conversion efficiency and which pass harsh stability tests under humidity, heat and illumination.

Optics-free circularly-polarized light detection has suffered from extremely low responsivity. Here Chen et al. demonstrate chiral organic–inorganic hybrid perovskite based detectors to distinguish circularly-polarized light with high responsivity of 797 mA/W.

Antimony selenide possess several advantages for solar cell applications but state-of-the-art vapor transport deposition methods suffer from poor film quality. Here Wen et al. develop a fast and cheap method to reduce the defect density by 10 times and achieve a certified power conversion efficiency of 7.6%.

The vertical matrix perovskite X-ray detectors for multi-energy detection is reported, providing a new generation of X-ray detectors with features of multi-energy discrimination, density differentiation and contrast-enhanced.

After alloying with metal cations, a lead-free halide double perovskite shows stable performance and remarkably efficient white-light emission, with possible applications in lighting and display technologies.