<p>Cesium-doped mixed halide perovskites show unique potential in radiation-prone environments because their response to gamma rays is not purely destructive. At lower doses (&lt; 10&#xa0;kGy), radiation can passivate defects, improving optoelectronic properties, with irreversible damage like halide segregation only dominating at very high doses (&gt; 21&#xa0;kGy). Critically, cesium doping strengthens the perovskite lattice itself, slowing ion migration and boosting intrinsic stability. However, a significant gap remains between laboratory testing (100&#xa0;kGy) and the demands of long-term space missions (500&#xa0;kGy). This review analyzes recent advances to move beyond simply observing these effects and toward a predictive framework for designing radiation-hardened perovskites by linking experimental data with theoretical models and standardized practices.</p> Graphical abstract <p></p>

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Radiation-resistance in cesium-doped perovskites: mechanisms, challenges, and future prospects

  • Chioma P. Egwuogu,
  • Nnamdi V. Ogueke,
  • Chinyere A. Madu,
  • Obi K. Echendu,
  • Emeka E. Oguzie

摘要

Cesium-doped mixed halide perovskites show unique potential in radiation-prone environments because their response to gamma rays is not purely destructive. At lower doses (< 10 kGy), radiation can passivate defects, improving optoelectronic properties, with irreversible damage like halide segregation only dominating at very high doses (> 21 kGy). Critically, cesium doping strengthens the perovskite lattice itself, slowing ion migration and boosting intrinsic stability. However, a significant gap remains between laboratory testing (100 kGy) and the demands of long-term space missions (500 kGy). This review analyzes recent advances to move beyond simply observing these effects and toward a predictive framework for designing radiation-hardened perovskites by linking experimental data with theoretical models and standardized practices.

Graphical abstract