Reduction of lead leakage from damaged lead halide perovskite solar modules using self-healing polymer-based encapsulation

Jiang, Yan; Qiu, Longbin; Juárez-Pérez, Emilio J.; Ono, Luis K.; Hu, Zhanhao; Liu, Zonghao; Wu, Zhifang; Meng, Lingqiang; Wang, Qijing; Qi, Yabing

doi:10.1038/s41560-019-0406-2

Cited by 350 publications

(328 citation statements)

References 43 publications

Supporting

Mentioning

321

Contrasting

Unclassified

Order By: Relevance

“…Double perovskites such as Cs 2 AgBiBr 6 are also considered as promising Pb‐free alternative, but current reported PCEs are much lower . Encapsulation is important for all PV cells but is particularly important for the PSCs, which not only helps prevent the contact with moisture and oxygen but also helps prevent the leakage of lead to ambient . Encapsulation technology is expected to play an important role in the development of large‐scale CsPbBr 3 perovskite solar modules.…”

Section: Discussionmentioning

confidence: 99%

Recent Progress of All‐Bromide Inorganic Perovskite Solar Cells

Tong

Ono

2019

Energy Tech

Self Cite

View full text Add to dashboard Cite

Inorganic perovskite solar cells (PSCs) have attracted enormous attention during the past 5 years. Many advanced strategies and techniques have been developed for fabricating inorganic PSCs with improved efficiency and stability to realize commercial applications. CsPbBr3 is one of the representative materials of inorganic perovskites and has demonstrated excellent stability against thermal and high humidity environmental conditions. The power conversion efficiency of CsPbBr3‐based PSCs has increased significantly from 5.95% in 2015 to 10.91%, and the storage stability under moisture (≈80% relative humidity) and heat (≈80 °C) is more than 2000 h. The outstanding performance of CsPbBr3 PSCs shows great potential in light‐to‐electricity conversion applications. In this review, recent developments of CsPbBr3‐based PSCs including the physico‐chemical as well as optoelectronic properties, processing techniques for fabricating CsPbBr3 films, derivative phase structures, efficiency, and stability of devices are reviewed and discussed. Finally, the challenges and outlook of CsPbBr3 PSCs for future research directions are outlined.

show abstract

Section: Discussionmentioning

confidence: 99%

Recent Progress of All‐Bromide Inorganic Perovskite Solar Cells

Tong

Ono

2019

Energy Tech

Self Cite

View full text Add to dashboard Cite

show abstract

“…Although lead is abundant in the earth crust, its toxicity and probable carcinogenicity have been considered as serious environmental issues for the large‐scale application of lead‐based PSCs. Even though only a low amount of lead is implemented in devices, there is a potential risk of harms on both humans and environment due to lead leakage, e.g., from damaged modules . The full substitution of lead with other environmentally benign elements to form new nontoxic perovskite materials with suitable optical absorption should pave the way for future commercialization .…”

Section: Inorganic Perovskite Materials and Solar Cellsmentioning

confidence: 99%

Review on Recent Progress of All‐Inorganic Metal Halide Perovskites and Solar Cells

2019

View full text Add to dashboard Cite

perovskite-based solar cells (PSCs) have reached a certified power conversion efficiency (PCE) of 24.2% in 2019, [19] which is comparable with that of copper indiumgallium diselenide (CIGS) [20] and siliconbased solar cells.The general chemical formula of a perovskite compound can be described as ABX 3 , where A is a monovalent cation (methylammonium (CH 3 NH 3 + (MA + )), formamidinium (CH(NH 2 ) 2 + (FA + )), cesium, etc.), B is a divalent metal cation (Pb 2+ , Sn 2+ , etc.), and X is occupied by a halide counterion (Cl − , Br − , and I − ). It is possible to form mixed compounds with respect to each site. The commercialization of hybrid perovskites requires materials that are thermodynamically stable and can withstand various thermal stressing tests, including natural daynight cycling and exposure to full sunlight. The organic parts in perovskites (such as MA + or FA + ) cannot endure high temperature and thus presents a longterm stability issue for devices under operation. Among the various degradation and decomposition pathways of hybrid perovskite, which depend on environmental factors such as humidity and illumination, a common theme is the low thermal stability of these perovskites, even in inert atmosphere. [21][22][23] For example, release of CH 3 NH 2 has been reported in MA-based perovskite films at temperatures of 80 °C, indicating decomposition of MA. [24] However, standard operational conditions for photovoltaics require materials and devices to be stable at this temperature. Therefore, the replacement of the organic parts by inorganic components (Cs + ) is expected to dramatically increase the long-term stability. [23,25,26] It has been widely reported that even a small amount of cesium can greatly enhance the thermal stability of organic-inorganic hybrid perovskites. [27,28] For example, FA 0.83 Cs 0.17 Pb(I 0.6 Br 0.4 ) 3 demonstrates both thermal and moisture stability, and stability to operation in the presence of oxygen. [29] An early report by Hodes [30] shows that thin films of the inorganic perovskite CsPbBr 3 can be prepared with a two-step method. The solar cells employing these layers yield an impressive high open circuit voltage (V oc ) of 1.32 V. These results, as the authors emphasize, indicate that the organic moiety is not an essential component in constructing high-performance perovskite materials and devices. Since then, with numerous publications each year, the inorganic PSCs research community is keeping highly active, including novel deposition methods All-inorganic perovskites are considered to be one of the most appealing research hotspots in the field of perovskite photovoltaics in the past 3 years due to their superior thermal stability compared to their organic-inorganic hybrid counterparts. The power-conversion efficiency has reached 17.06% and the number of important publications is ever increasing. Here, the progress of inorganic perovskites is systematically highlighted, covering materials design, preparation of high-quality perovskite films, and avoidance of phase in...

show abstract

“…The HOIP materials have the ABX 3 structure, where A stands for methylammonium (MA) and formamidinium (FA), B is lead (Pb) or tin (Sn), and X is a series of halide element such as chlorine (Cl), bromine (Br), or iodine (I) . This unique material family has allowed the perovskite solar cells (PVSCs) to boom with their power conversion efficiency skyrocketing to 24.2%, already comparable with most high performance thin film solar cells reported to date. In the application of halide perovskites to light‐emitting diodes (HPLEDs), a maximum external quantum efficiency (EQE) over 20% has been reported by different groups .…”

Section: Introductionmentioning

confidence: 99%

Ion Migration: A “Double‐Edged Sword” for Halide‐Perovskite‐Based Electronic Devices

2019

View full text Add to dashboard Cite

Ion migration has been regarded as one of the most interesting and mysterious processes in halide-perovskite-based electronic devices. On the one hand, ion migration contributes to the hysteresis and poor stability problems of perovskite devices. On the other hand, the mobile ions can passivate the interfaces of perovskite devices, leading to improved carrier transportation and collection. This article gives a critical review on the ion migration in halide perovskite materials. It starts with a brief introduction of the origin and nature of the ion migration problem in perovskite materials. Next, the electric, photoelectric, and structural phenomena resulting from ion migration and their influence on the performance and stability of the perovskite devices are focused on. The recent literature work on the characterization of ion migration is reviewed and the characterization techniques are highlighted. Furthermore, different approaches that can suppress the ion migration process are also introduced. Finally, ion migration in the emerging all-inorganic halide perovskite materials is compared with that in hybrid halide perovskite materials, and the implications on device design and performance are discussed.

show abstract

Reduction of lead leakage from damaged lead halide perovskite solar modules using self-healing polymer-based encapsulation

Cited by 350 publications

References 43 publications

Recent Progress of All‐Bromide Inorganic Perovskite Solar Cells

Recent Progress of All‐Bromide Inorganic Perovskite Solar Cells

Review on Recent Progress of All‐Inorganic Metal Halide Perovskites and Solar Cells

Ion Migration: A “Double‐Edged Sword” for Halide‐Perovskite‐Based Electronic Devices

Contact Info

Product

Resources

About