Metal halide perovskite solar cells (PSCs) offer high power-to-weight ratios and superior absorption properties, holding significant promise for space and avionics applications. However, the irradiation stability of PSCs, particularly under fast neutron exposure, remains insufficient. Here, we report a comprehensive study of the degradation mechanism of perovskite devices under fast neutron irradiation and propose an effective shielding strategy. We identified the decomposition of organic cations and subsequent degradation of neutron-irradiated perovskite films, both of which were found to be irreversible over extended periods. Based on this understanding, we fabricated a boron-containing transparent substrate that enabled the stability of PSCs under a fluence of 8.67 × 107 n cm−2, equivalent to approximately 5 years of fast neutron exposure in the International Space Station environment. Further characterizations revealed that this strategy reduced defect density, alleviated lattice distortion, and suppressed non-radiative recombination. This work provides a new substrate-engineering strategy for enhancing the irradiation stability of photovoltaic devices without compromising the intrinsic properties of perovskite film.
Adding so-called oversized organic cations to lead-halide perovskites has emerged as a promising route to enhance the stability and efficiency of perovskite solar cells (PSCs). These additives can induce quasi-2D phases, yielding “2D–3D” hybrids. Here, we study methylammonium (MA) lead iodide PSCs incorporating guani...
M. Solovan, H. Parkhomenko, A. I. Mostovyi et al.· ACS Applied Energy Materials· 0 citations
Monolithic all-perovskite triple-junction solar cells (3J-PSCs) promise the highest power-to-weight ratios, making them attractive candidates for space photovoltaics. Their stability under high-energy particle irradiation concurrent with illumination is, however, a crucial consideration for space photovoltaic applicati...
Sercan Ozen, Kevin J. Prince, Yeonghun Yun et al.· Materials Horizons· 0 citations
Here, we present an integrated optimization strategy for lead-free Cs2SnI3Br3 perovskite solar cells that combines absorber-layer thickness engineering, precise interface band-offset tailoring via electron transport layer/hole transport layer selection, black-phosphorene-based interface passivation, and coupled thermo-...
N. E. Bekhechi, A. Kanoun, S. Bahlouli et al.· AIP Advances· 0 citations
Perovskite solar cells (PSCs) have emerged as compelling candidates for next-generation space photovoltaics, offering high specific power, mechanical flexibility, and promising radiation tolerance. However, in orbit, these devices face a harsh radiation environment of energetic electrons, protons, gamma rays, ultraviol...
Can-Kun Ma, Pengxiang Zhang, Yuan Xiong et al.· Advances in Materials· 0 citations
Non-fullerene acceptors have enabled organic solar cells (OSCs) with power conversion efficiencies exceeding 20%, yet their operational stability remains a key challenge. This work investigates degradation mechanisms in OSCs under both ambient and inert conditions using the PM6:Y6 system. In air, molecular oxygen is id...
P. Wang, F. Zimmermann, S. Opitz et al.· Organic, Hybrid, and Perovsk...· 0 citations
α-Particles represent the second most abundant ionic species in space radiation, yet their specific degradation mechanisms and mitigation strategies in perovskite solar cells (PSCs) remain unquantified. Here, we evaluate the degradation of PSCs under 2.5 MeV α-particle irradiation and investigate the protective role...
Da Seul Lee, H. W. Seo, Hyeji Han et al.· ACS Energy Letters· 0 citations
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