Lead-free and stable antimony–silver-halide double perovskite (CH3NH3)2AgSbI6

Li, Yajuan; Wu, Tao; Sun, Lei; Yang, Ruixia; Jiang, Lei; Cheng, Pengfei; Hao, Qunqing; Wang, Tianjun; Lu, Ruifeng; Deng, Wei

doi:10.1039/c7ra06130g

Cited by 82 publications

(52 citation statements)

References 60 publications

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“…The material is stable in air and moisture and exhibits higher decomposition temperature than that of MAPbBr 3 . In 2017, the same group synthesized (MA) 2 AgSbI 6 [84] and (MA) 2 AgBiI 6 [85] with indirect bandgap of ~ 2 eV and exhibited high stability in air, as the XRD patterns shown in Fig. 3e, f. Though Sb and Bi are in the same group, there are still some differences between them.…”

Section: Hybrid Halide Double Perovskitesmentioning

confidence: 96%

“…The present halide double perovskite materials exhibit excellent stability in moisture, heat and light, unlike the fashionable Pb-based perovskite materials. For instance, (MA) 2 AgSbI 6 powder is relatively unaltered after being exposed to air for 370 days and the thermal stability can be up to 260 °C [84]. As a general rule, all-inorganic halide perovskites possess better stability [105][106][107].…”

Section: Conclusion and Perspectivementioning

confidence: 99%

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Lead-Free Halide Double Perovskite Materials: A New Superstar Toward Green and Stable Optoelectronic Applications

et al. 2019

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HIGHLIGHTS• Lead-based halide perovskite materials have revealed excellent properties in optoelectronic applications. However, the material stability and the toxicity of lead still hinder their large-scale commercial applications.• Lead-free halide double perovskite materials possess the characteristics of environmental friendliness, exceptional stability and tunable optoelectronic properties.• A limited number of halide double perovskites have been synthesized, and extremely few have been developed for optoelectronic applications. Continuing effort is needed to explore more halide double perovskites and modulate the properties for their further applications.ABSTRACT Lead-based halide perovskites have emerged as excellent semiconductors for a broad range of optoelectronic applications, such as photovoltaics, lighting, lasing and photon detection. However, toxicity of lead and poor stability still represent significant challenges. Fortunately, halide double perovskite materials with formula of A 2 M(I)M(III)X 6 or A 2 M(IV)X 6 could be potentially regarded as the films still manifest low quality for photovoltaic applications. Therefore, we propose that continuing efforts are needed to develop more halide double perovskites, modulate the properties and grow high-quality films, with the aim of opening the wild practical applications.

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Section: Hybrid Halide Double Perovskitesmentioning

confidence: 96%

Section: Conclusion and Perspectivementioning

confidence: 99%

Lead-Free Halide Double Perovskite Materials: A New Superstar Toward Green and Stable Optoelectronic Applications

et al. 2019

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“…The conduction band of MA 2 AgBiI 6 (−4.3 eV) was lower than that of the commonly applied electron transport layer (ETL; i.e., TiO 2 ), and thus SnO 2 (−4.5 eV) or C 60 (−4.5 eV) may be electronically compatible with MA 2 AgBiI 6 . In contrast, MA 2 AgSbI 6 was synthesized by Li et al and delivered a bandgap value of 1.93 eV . Despite Bi and Sb being in the same group, the noteworthy difference in their electronic configuration was demonstrated because of the different ionic radii and spin–orbit coupling effect.…”

Section: Theoretical Calculations On the Materials Properties Of Lfdpmentioning

confidence: 99%

Lead‐Free Double Perovskites for Perovskite Solar Cells

et al. 2019

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Perovskite solar cells (PSCs) have achieved a high power conversion efficiency (PCE) with a credible certified value over 25%. More efforts have been devoted to the development of stable and ecofriendly perovskite materials. Lead-free double perovskites (LFDPs) are a noteworthy choice as a photoactive layer because of their favorable photovoltaic (PV) properties, intrinsic chemical stability, and environmental friendliness. This Review presents various LFDP materials whose structural stability and optoelectronic properties are predicted by theoretical calculations. The synthesis and experimental properties of LFDPs and their applications in PSCs and optoelectronics in pursuing high performance, low toxicity, and functional stability are also reviewed. Perovskites active layers are critical for PSCs, and their appropriate properties are responsible for achieving a high PCE. On the other side, the stability of PSCs under working conditions is a critical requirement for their practical applications. Defect-ordered perovskites are also presented to provide another outlook on lead-free perovskite-based PVs. The introduction and interest toward LFDP in PSCs can represent a viable solution to the toxicity issue, stimulate further research, and bring a real impact to future PV technologies.

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“…The compound was stable up to 503 K as evidenced by TGA testing. Li et al synthesized the hybrid double perovskite (MA) 2 AgSbI 6 in 2017 using a solid-state reaction [81]. This perovskite absorbed in the 200-600 nm UV-visible range and had a 1.93 eV indirect bandgap.…”

Section: Organic-inorganic Hybrid Halide Double Perovskitesmentioning

confidence: 99%

Recent Advancements in Crystalline Pb-Free Halide Double Perovskites

Usman

Yan

2020

Crystals

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Lead halide perovskites have gained more and more attention because of their ease of synthesis and excellent photoelectric properties including a large absorption coefficient, long carrier lifetime, long carrier diffusion length, and high carrier mobility. However, their toxicity, instability, and phase degradation in ambient environments impede their large-scale applications. To address these concerns, it is desirable to find stable alternative halide perovskites without toxicity and with comparable optoelectronic properties to lead-based perovskites. Over the years, a considerable number of lead-free halide perovskites have been added to this family of materials, including A2B’B’’X6, A2BX6, and A3B2X9 type perovskites. Among these, double perovskites with the general formula A2B’B’’X6 are deemed to be a potential alternative to lead halide perovskites as they possess good stability under ambient conditions and excellent optoelectronic properties. In this review, recent progress in exploring Pb-free halide double perovskites is highlighted. The synthesis, composition-tuning, physical properties, and applications of representative 3D, 2D, and nanocrystal A2B’B’’X6 double perovskites are introduced. In addition, perspectives about current challenges and solutions in this field are also provided.

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Lead-free and stable antimony–silver-halide double perovskite (CH₃NH₃)₂AgSbI₆

Abstract: A new lead-free mixed-metal perovskite (CH3NH3)2AgSbI6 for light absorber was demonstrated both from theoretical prediction and experimental verification. This material remained stable in air for 370 days.

Cited by 82 publications

References 60 publications

Lead-Free Halide Double Perovskite Materials: A New Superstar Toward Green and Stable Optoelectronic Applications

Lead-Free Halide Double Perovskite Materials: A New Superstar Toward Green and Stable Optoelectronic Applications

Lead‐Free Double Perovskites for Perovskite Solar Cells

Recent Advancements in Crystalline Pb-Free Halide Double Perovskites

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