Optically switched magnetism in photovoltaic perovskite CH3NH3(Mn:Pb)I3

Náfrádi, Bálint; Szirmai, Péter; Spina, Massimo; Lee, H.; Yazyev, Oleg V.; Arakcheeva, A. V.; Chernyshov, Dmitry; Gibert, Marta; Forró, Lászlø; Horváth, Endre

doi:10.1038/ncomms13406

Cited by 115 publications

(93 citation statements)

References 47 publications

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“…The concerns about reliability of perovskites for photovoltaic applications can be extended to their use in other devices. Dielectric and ferroic properties of halide perovskites have been recently reported [11,12]; also, manganese substitution of lead in the CH 3 NH 3 Pb have generated a great expectation towards the possibility of a light-controlled magnetic recording of information [13]).…”

Section: Introductionmentioning

confidence: 99%

The balance between efficiency, stability and environmental impacts in perovskite solar cells: a review

Urbina

2020

J. Phys. Energy

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Photovoltaic technology is progressing very fast, both in a new installed capacity, now reaching a total of more than 400 GW worldwide, and in a big research effort to develop more efficient and sustainable technologies. Organic and hybrid solar cells have been pointed out as a technological breakthrough due to their potential for low economical cost and low environmental impact; but despite impressive laboratory progress, the market is still beyond reach for these technologies, especially for perovskitebased technology. In this review, the historical evolution and relationship of efficiency and stability is addressed, including Life Cycle Assessment studies which provide a quantitative evaluation of environmental impacts in several categories, such as human health or freshwater ecotoxicity, with special focus on lead toxicity. The main conclusion is that there is no unsurmountable barrier for the massive deployment of photovoltaic systems with perovskite solar modules, if the stability is extended to lifetimes similar to technologies already in the market. The results of this review provide some recommendations mainly focused on the best options for improved stability (avoiding mainly moisture and oxygen degradation) by using metal oxides, ternary or quaternary cations, or the novel 2D/3D approach, and the encapsulation effort which should also take into account the recyclability of the materials and the low environmental impact processes for up-scaled industrial production. Research guidelines should take into account the end-of-life of the devices and cleaner routes for production avoiding toxic solvents.

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Section: Introductionmentioning

confidence: 99%

The balance between efficiency, stability and environmental impacts in perovskite solar cells: a review

Urbina

2020

J. Phys. Energy

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“…Here, we do not implement MAPbI 3 as a reference sample, as our previous investigations showed that MAPbI 3 remained EPR-silent both in the dark and under illumination [42].…”

Section: Preparation Of Mapbi 3 /Tio 2 Nanohybrid Materialsmentioning

confidence: 99%

Light-induced charge transfer at the CH₃NH₃PbI₃/TiO₂ interface—a low-temperature photo-electron paramagnetic resonance assay

et al. 2020

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The performance of organic-inorganic metal halide perovskites-based (MHPs) photovoltaic devices critically depends on the design and material properties of the interface between the light-harvesting MHP layer and the electron transport layer (ETL). Therefore, the detailed insight into the transfer mechanisms of photogenerated carriers at the ETL/MHP interface is of utmost importance. Owing to its high charge mobilities and well-matched band structure with MHPs, titanium dioxide (TiO 2 ) has emerged as the most widely used ETL material in MHPs-based photovoltaic devices. Here, we report a contactless method to directly track the photo-carriers at the ETL/MHP interface using the technique of low-temperature electron paramagnetic resonance (EPR) in combination with in situ illuminations (Photo-EPR). Specifically, we focus on a model nanohybrid material consisting of TiO 2 -based nanowires (TiO 2 NWs) dispersed in the polycrystalline methylammonium lead triiodide (MAPbI 3 ) matrix. Our approach is based on observation of the light-induced decrease in intensity of the EPR signal of paramagnetic Ti 3+ ( = S 1 2) in non-stoichiometric TiO 2 NWs. We associate the diminishment of the EPR signal with the photo-excited electrons that cross the ETL/MHP interface and contribute to the conversion of Ti 3+ states to EPR-silent Ti 2+ states. Overall, we infer that the technique of lowtemperature Photo-EPR is an effective strategy to study the transfer mechanisms of photogenerated carriers at the ETL/MHP interface in MAPbI 3 -based photovoltaic and photoelectronic systems.

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“…Self assembly-based micro fabrication 10 allowed nanometer-sized 11 and high-sensitivity 12 detector development. Recently, even magnetic compounds have been synthesized based on MAPbI3 by substituting Pb atoms by magnetic atoms such as Mn 13 . These magnetic compounds are potential candidates for novel magneto-optical data storage and memory operations 13 .…”

Section: Introductionmentioning

confidence: 99%

Radiation detection and energy conversion in nuclear reactor environments by hybrid photovoltaic perovskites

Náfrádi

Horváth

Kollár

et al. 2020

Energy Conversion and Management

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Detection and direct power conversion of high energy and high intensity ionizing radiation could be a key element in next generation nuclear reactor safety systems and space-born devices. For example, the Fukushima catastrophe in 2011 could have been largely prevented if 1% of the reactor's remnant radiation (γ-rays of the nuclear fission)were directly converted within the reactor to electricity to power the water cooling circuit. It is reported here that the hybrid halide perovskite methylammonium lead triiodide could perfectly play the role of a converter. Single crystals were irradiated by a typical shut-down γ-spectrum of a nuclear reactor with 7.61×10 14 Bq activity exhibit a highefficiency of γ-ray to free charge carrier conversion with radiation hardening. The power density of 0.3 mW/kg of methylammonium lead triiodide at 50 Sv/h means a four times higher efficiency than that for silicon-based cells. The material was stable to the limits of the experiment without changing its performance up to 100 Sv/h dose rate and 57 Sv H*(10) ambient total γ-dose. Moreover, the γ-shielding performance of methylammonium lead triiodide was found to be superior to both ordinary and barite concrete.

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Optically switched magnetism in photovoltaic perovskite CH3NH3(Mn:Pb)I3

Cited by 115 publications

References 47 publications

The balance between efficiency, stability and environmental impacts in perovskite solar cells: a review

The balance between efficiency, stability and environmental impacts in perovskite solar cells: a review

Light-induced charge transfer at the CH₃NH₃PbI₃/TiO₂ interface—a low-temperature photo-electron paramagnetic resonance assay

Radiation detection and energy conversion in nuclear reactor environments by hybrid photovoltaic perovskites

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Optically switched magnetism in photovoltaic perovskite CH3NH3(Mn:Pb)I3

Cited by 115 publications

References 47 publications

The balance between efficiency, stability and environmental impacts in perovskite solar cells: a review

The balance between efficiency, stability and environmental impacts in perovskite solar cells: a review

Light-induced charge transfer at the CH3NH3PbI3/TiO2 interface—a low-temperature photo-electron paramagnetic resonance assay

Radiation detection and energy conversion in nuclear reactor environments by hybrid photovoltaic perovskites

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Light-induced charge transfer at the CH₃NH₃PbI₃/TiO₂ interface—a low-temperature photo-electron paramagnetic resonance assay