Sep 2026· ACS Applied Energy Materials· Vol 9, pp. 12633-12647· 0 citations· 66 references
Abstract
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 guanidinium (GA) cations using ultrafast transient absorption, open-circuit voltage decay and X-ray diffraction, and we probe their robustness under proton, electron, and UV irradiation. In our best devices, those with limited GA+ content, nominally GA(MA)5Pb5I16, and employing SnO2 as the electron-transport layer, no quasi-2D signatures are detected. Instead, GA is incorporated into a 3D perovskite lattice without phase segregation. Devices built on TiO2 and/or exhibiting quasi-2D character show inferior performance, which we attribute to enhanced nonradiative charge recombination. Finally, irradiation studies reveal that GA-containing PSCs reveal remarkable resistance to ionizing damage, preserving optoelectronic quality and voltage retention, thereby underscoring their potential for space applications.
Hybrid organic-inorganic perovskites are promising for space photovoltaic applications due to their exceptional optoelectronic properties and high power-to-weight ratio, but orbital deployment is limited by radiation degradation. The influence of modifier structure on radiation resistance remains poorly understood. Her...
Е. В. Катков, Viktoria V. Ozerova, Ivan E. Novoselov et al.· Chimica Techno Acta· 0 citations
Nonradiative recombination originating from the defect-rich SnO2/perovskite buried contact and the absorber interior imposes a major constraint on photovoltaic output and device durability. Here, ethylenediaminetetraacetic acid dipotassium salt (EDTA-2K) is inserted as a molecular bridge that modifies the chemical envi...
Meng-Jie Li, Shuang Che, Zhe Yu et al.· ACS Applied Materials and In...· 0 citations
Defect-mediated non-radiative recombination and progressive material degradation impose fundamental limits on the power conversion efficiency (PCE) and operational durability of perovskite solar cells (PSCs). To address this issue, we synthesized amino-terminated Ti3C2Tx MXene (denoted as A-MXene) nanosheets through Li...
Jun-Peng Zhou, Cai-Xiang Zhao, Mei-Li Sun et al.· ACS Applied Materials and In...· 0 citations
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 st...
Halide perovskites (HPs) exhibit outstanding optoelectronic properties, making them highly attractive for advanced photonic and electronic applications. Among them, cesium lead bromide (CsPbBr3) exhibits high photoluminescence efficiency, narrow emission linewidths, and excellent color purity, making it suitable for li...
Neena Prasad, Achiad Goldreich, A. S. Thomas et al.· Nanomaterials· 0 citations
The large-scale application of traditional lead-based halide perovskite solar cells (PSCs) has been hindered by their environmental risks associated with toxic lead ions, driving the urgent exploration of efficient and eco-friendly alternatives. Compared to earlier simulation studies on chalcogenide perovskite solar...
