Bandgap‐Tunable Cesium Lead Halide Perovskites with High Thermal Stability for Efficient Solar Cells

Sutton, Rebecca J.; Eperon, Giles E.; Miranda, Laura; Parrott, Elizabeth S.; Kamino, Brett A.; Patel, Jay B.; Hörantner, Maximilian T.; Johnston, Michael B.; Haghighirad, Amir A.; Moore, David T.; Snaith, Henry J.

doi:10.1002/aenm.201502458

Cited by 1,389 publications

(1,290 citation statements)

References 36 publications

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“…Solar cells comprising all-inorganic perovskite NCs (CsPbI 3 ) have reached efficiencies of 9.8%, still significantly lower than solar cells made of hybrid perovskite NCs. 118 Most of the semiconductor materials displaying high photoconversion efficiencies can act as efficient photodetectors. In light of this, perovskite NCs have also been employed as broadband photodetectors, even though this research field is rather new.…”

Section: Perovskite Ncs In Solar Cells and Photodiodesmentioning

confidence: 99%

Colloidal lead halide perovskite nanocrystals: synthesis, optical properties and applications

et al. 2016

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Lead halide perovskite nanocrystals (NCs) are receiving a lot of attention nowadays, due to their exceptionally high photoluminescence quantum yields reaching almost 100% and tunability of their optical band gap over the entire visible spectral range by modifying composition or dimensionality/size. We review recent developments in the direct synthesis and ion exchange-based reactions, leading to hybrid organic-inorganic (CH 3 NH 3 PbX 3 ) and all-inorganic (CsPbX 3 ) lead halide (X = Cl, Br, I) perovskite NCs, and consider their optical properties related to quantum confinement effects, single emission spectroscopy and lasing. We summarize recent developments on perovskite NCs employed as an active material in several applications such as light-emitting devices, solar cells and photodetectors, and provide a critical outlook into the existing and future challenges.

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Section: Perovskite Ncs In Solar Cells and Photodiodesmentioning

confidence: 99%

Colloidal lead halide perovskite nanocrystals: synthesis, optical properties and applications

et al. 2016

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“…120,121 However recently, cation mixtures have gained attention as a means to increase the absorber material's resistance to moisture and heat degradation. These stability gains were achieved by substituting MA with formamidinium (FA), 122 cesium (Cs) cations, [123][124][125][126] or a mixture of the two (Figure 3(b) and 3(d)). 5,127-131 Eperon et al reported that degradation was considerably slowed for FAPbI 3 compared to MAPbI 3 when heated at 150…”

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confidence: 99%

“…Fully inorganic cesium-based perovskite has gained interest due to their potential of withstanding high temperatures. [123][124][125][126] CsPbI 3 forms in a cubic (pm3m) perovskite structure with a band gap of 1.73 eV. 122,123 Unfortunately, CsPbI 3 is highly unstable in this crystal structure when exposed to air and quickly undergoes a reversible phase transition to a yellow orthorhombic phase material, unsuitable for solar cell applications.…”

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Research Update: Strategies for improving the stability of perovskite solar cells

et al. 2016

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The power-conversion efficiency of perovskite solar cells has soared up to 22.1% earlier this year. Within merely five years, the perovskite solar cell can now compete on efficiency with inorganic thin-film technologies, making it the most promising of the new, emerging photovoltaic solar cell technologies. The next grand challenge is now the aspect of stability. The hydrophilicity and volatility of the organic methylammonium makes the work-horse material methylammonium lead iodide vulnerable to degradation through humidity and heat. Additionally, ultraviolet radiation and oxygen constitute stressors which can deteriorate the device performance. There are two fundamental strategies to increasing the device stability: developing protective layers around the vulnerable perovskite absorber and developing a more resilient perovskite absorber. The most important reports in literature are summarized and analyzed here, letting us conclude that any long-term stability, on par with that of inorganic thin-film technologies, is only possible with a more resilient perovskite incorporated in a highly protective device design.

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“…[108,109] However, the lead halide perovskite materials can be easily dissolved and degraded when exposed to ambient humidity, thus showing low stability against humid environment for long-term operation. [110,111] To address this issue, Zhao et al reported the first self-healing perovskite solar cell based on an insulating polymer scaffold structure.…”

Section: Photovoltaicsmentioning

confidence: 99%

Self‐Healing Materials for Next‐Generation Energy Harvesting and Storage Devices

Chen

Wang

Yang

et al. 2017

Advanced Energy Materials

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Because of the great breakthroughs of self‐healing materials in the past decade, endowing devices with self‐healing ability has emerged as a particularly promising route to effectively enhance the device durability and functionality. This article summarizes recent advances in self‐healing materials developed for energy harvesting and storage devices (e.g., nanogenerators, solar cells, supercapacitors, and lithium‐ion batteries) over the past decade. This review first introduces the main self‐healing mechanisms among different materials including insulators, electrical conductors, semiconductors, and ionic conductors. Then, the basic concepts, fabrication techniques, and healing performances of the newly developed self‐healing energy harvesting (nanogenerators and solar cells) and storage (supercapacitors and lithium‐ion batteries) devices are described in detail. Finally, the existing challenges and promising solutions of self‐healing materials and devices are discussed.

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Bandgap‐Tunable Cesium Lead Halide Perovskites with High Thermal Stability for Efficient Solar Cells

Cited by 1,389 publications

References 36 publications

Colloidal lead halide perovskite nanocrystals: synthesis, optical properties and applications

Colloidal lead halide perovskite nanocrystals: synthesis, optical properties and applications

Research Update: Strategies for improving the stability of perovskite solar cells

Self‐Healing Materials for Next‐Generation Energy Harvesting and Storage Devices

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