γ-Ray-Induced Degradation in the Triple-Cation Perovskite Solar Cells

Boldyreva, Alexandra; Akbulatov, Azat F.; Tsarev, Sergey; Luchkin, Sergey Yu.; Zhidkov, Ivan S.; Kurmaev, Erst; Stevenson, Keith J.; Петров, В. Г.; Troshin, Pavel A.

doi:10.1021/acs.jpclett.8b03222

Cited by 46 publications

(43 citation statements)

References 30 publications

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“…The same behaviour was also observed for PVMX samples. The sensitivity of pure- [ 29 ] and mixed-halide perovskites [ 30 ] to visible and even

radiation [ 31 ] has been often reported. In mixed halides, perovskite photo-excitation was proven to determine a reversible phase separation into iodine-rich and bromide-rich domains [ 30 ], recently attributed to the local strain generated by the interaction of the photo-excited charges with the ionic lattice [ 32 ].…”

Section: Resultsmentioning

confidence: 99%

Mixed Cation Halide Perovskite under Environmental and Physical Stress

et al. 2021

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Despite the ideal performance demonstrated by mixed perovskite materials when used as active layers in photovoltaic devices, the factor which still hampers their use in real life remains the poor stability of their physico-chemical and functional properties when submitted to prolonged permanence in atmosphere, exposure to light and/or to moderately high temperature. We used high resolution photoelectron spectroscopy to compare the chemical state of triple cation, double halide Csx(FA0.83MA0.17)(1−x)Pb(I0.83Br0.17)3 perovskite thin films being freshly deposited or kept for one month in the dark or in the light in environmental conditions. Important deviations from the nominal composition were found in the samples aged in the dark, which, however, did not show evident signs of oxidation and basically preserved their own electronic structures. Ageing in the light determined a dramatic material deterioration with heavily perturbed chemical composition also due to reactions of the perovskite components with surface contaminants, promoted by the exposure to visible radiation. We also investigated the implications that 2D MXene flakes, recently identified as effective perovskite additive to improve solar cell efficiency, might have on the labile resilience of the material to external agents. Our results exclude any deleterious MXene influence on the perovskite stability and, actually, might evidence a mild stabilizing effect for the fresh samples, which, if doped, exhibited a lower deviation from the expected stoichiometry with respect to the undoped sample. The evolution of the undoped perovskites under thermal stress was studied by heating the samples in UHV while monitoring in real time, simultaneously, the behaviour of four representative material elements. Moreover, we could reveal the occurrence of fast changes induced in the fresh material by the photon beam as well as the enhanced decomposition triggered by the concurrent X-ray irradiation and thermal heating.

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“…The same behaviour was also observed for PVMX samples. The sensitivity of pure- [ 29 ] and mixed-halide perovskites [ 30 ] to visible and even

Section: Resultsmentioning

confidence: 99%

Mixed Cation Halide Perovskite under Environmental and Physical Stress

et al. 2021

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“…The importance of efficiency, weight and size have made PVKs a promising prospect for space applications, and as such there is are efforts to analyse the tolerance of these materials to radiation. Gamma-ray studies have shown small losses in J sc in mixed-halide systems, due to radiation-induced phase segregation, 92 similar to the Hoke effect, 93 although the largest losses are due to colour centers in the glass reducing transmittance. 94 The broad quantum efficiency of most photodetectors used in combination with scintillators makes precise tuning of the band gap by alloying different halides less important than in solar cells; as a result this phase segregation should not impact PVK indirect detectors.…”

Section: Pvk Scintillator Performancementioning

confidence: 99%

Halide perovskites scintillators: unique promise and current limitations

et al. 2021

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“…Due to 100–1000 Gy represents a typical stability benchmark for satellites working at low and middle equatorial orbits, [ 76 ] gamma ray radiation of 150, 300, and 500 Gy doses were applied to the Cs 0.15 MA 0.10 FA 0.75 Pb(Br 0.17 I 0.83 ) 3 perovskite absorber material, electron transporting material (PC 61 BM), hole transporting materials (PEDOT:PSS) and ITO glass substrate. [ 77 ] It was shown that the dose up to 500 Gy did not damage the PEDOT:PSS layer, however, radiation affected the performance of the PC 61 BM layers significantly. Also, the radiation tolerance of regular PSCs with a structure of glass/ITO/SnO 2 /Perovskite/Spiro‐OMeTAD/Ag under gamma rays with dose rate of 100, 200, and 500 krad s −1 were investigated.…”

Section: Radiation Resistance Of Perovskite Solar Cellsmentioning

confidence: 99%

Perovskite Solar Cells for Space Applications: Progress and Challenges

et al. 2021

Advanced Materials

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The general chemical formula of metal halide perovskite is ABX 3 , where A is a monovalent cation (such as FA + [ formamidinium], MA + [methylammonium], or Cs + ), B is a divalent metal cation (such as Pb 2+ , Sn 2+ , or Ge 2+ ), and X is a monovalent halogen anion (such as I − , Br − , or Cl − ). [9] Photovoltaic devices based on perovskite absorbers have achieved a certified power conversion efficiency (PCE) of 25.5% [10] in single-junction devices and obtained a PCE above 26.7% [11] in tandem devices, in which the best PCE is comparable to those of some commercially available products on the photovoltaic market, such as crystalline silicon (HIT, champion PCE of 26.7%), cadmium telluride (CdTe, champion PCE of 22.1%), gallium arsenide (GaAs, champion PCE of 27.8%), and copper indium gallium selenide (CIGS, champion PCE of 23.4%) solar cells. In particular, only sub-micron-thick absorber is needed in perovskite solar cells because of perovskite's high optical absorption coefficient of about 10 4 cm −1 , [12] therefore high specific power is expected. Combined with the low-temperature solution processability and radiation resistance, [13] these features render PSCs as a Metal halide perovskites have aroused burgeoning interest in the field of photovoltaics owing to their versatile optoelectronic properties. The outstanding power conversion efficiency, high specific power (i.e., power to weight ratio), compatibility with flexible substrates, and excellent radiation resistance of perovskite solar cells (PSCs) enable them to be a promising candidate for next-generation space photovoltaic technology. Nevertheless, compared with other practical space photovoltaics, such as silicon and III-V multi-junction compound solar cells, the research on PSCs for space applications is just in the infancy stage. Therefore, there are considerable interests in further strengthening relevant research from the perspective of both mechanism and technology. Consequently, the approaches used for and the consequences of PSCs for space applications are reviewed. This review provides an overview of recent progress in PSCs for space applications in terms of performance evolution and mechanism exploration of perovskite films and devices under space extreme environments.

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γ-Ray-Induced Degradation in the Triple-Cation Perovskite Solar Cells

Cited by 46 publications

References 30 publications

Mixed Cation Halide Perovskite under Environmental and Physical Stress

Mixed Cation Halide Perovskite under Environmental and Physical Stress

Halide perovskites scintillators: unique promise and current limitations

Perovskite Solar Cells for Space Applications: Progress and Challenges

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