Effect of silica encapsulation on the stability and photoluminescence emission of FAPbI3 nanocrystals for white-light-emitting perovskite diodes

Azar, Mahdi Hasanzadeh; Mohammadi, Maryam; Rezaei, Nima Tabatabaei; Aynehband, Samaneh; Simchi, Abdolreza

doi:10.1016/j.jallcom.2022.164465

Cited by 9 publications

(4 citation statements)

References 46 publications

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“…Finally, Figure 6d compares the performance of the PEAI-AAE-treated FAPbI 3 photodetector (5 mg mL −1 ) with previously reported perovskite-based photodetectors. [20,[52][53][54][55][56][57][58][59][60][61][62][63][64][65] References for these perovskite-based photodetectors are given in Table S4 (Supporting Information). Compared to previously reported perovskite-based photodetectors, the PEAI-AAE-treated FAPbI 3 photodetector exhibits excellent combined performance of high responsivity and fast response time due to the [100]-preferred orientation growth and defect passivation induced by PEAI-AAE treatment.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of [001]‐Oriented FAPbI₃‐Based Photodetector With Excellent Air Stability Via Green Anti‐Solvent Additive Engineering

Yun,

Kim,

Seong

2024

Advanced Optical Materials

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Formamidinium lead triiodide (FAPbI3) exhibits excellent thermal and chemical stability, making it a suitable alternative for methylammonium lead triiodide (MAPbI3) in high‐performance photodetectors. However, FAPbI3 faces the challenge of transforming from the metastable photoactive black phase α‐FAPbI3 to the photoinactive yellow phase δ‐FAPbI3 at room temperature. This phase transition is accelerated in humid atmospheric conditions. To realize high‐performance FAPbI3‐based photodetectors, it is crucial to form stable and highly crystalline phase‐pure α‐FAPbI3 films. Herein, is fabricate highly stable and crystalline FAPbI3 films and photodetectors through anti‐solvent additive engineering (AAE) using a green anti‐solvent (isopropanol, IPA) and an organic spacer (phenethylammonium iodide, PEAI). It is found that PEAI‐AAE treatment induced [001]‐preferred orientation growth in FAPbI3 films, and passivated defects within the crystal. The photodetectors based on PEAI‐AAE‐treated FAPbI3 film exhibits a fast response time of 485 µs/525 µs (rise time/fall time), high responsivity of 24.89 A W−1, and excellent specific detectivity of 1.56 × 1013 Jones. Moreover, the PEAI‐AAE‐treated FAPbI3 photodetector retained over 80% of its initial performance even after exposure to ambient air for over 720 h, demonstrating excellent long‐term stability. This study provides a green processing method that paves the way for future commercialization of perovskite‐based optoelectronic devices.

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Section: Resultsmentioning

confidence: 99%

Fabrication of [001]‐Oriented FAPbI₃‐Based Photodetector With Excellent Air Stability Via Green Anti‐Solvent Additive Engineering

Yun,

Kim,

Seong

2024

Advanced Optical Materials

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“…PSCs encapsulated with modified epoxy exhibited superior operational stability under continuous light irradiation over 1000 h [186]. Besides, other novel materials like graphene, SiO 2 , or NiO have also been reported to be adopted in encapsulation [188][189][190]. However, simple encapsulation cannot guarantee the stability of perovskite devices to meet the commercialized standard.…”

Section: Encapsulation Materialsmentioning

confidence: 99%

The issues on the commercialization of perovskite solar cells

Zhang,

Wang,

Meng

et al. 2024

Mater. Futures

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Perovskite solar cells have aroused a worldwide research upsurge in recent years due to their soaring photovoltaic performance, ease of solution processing, and low cost. The power conversion efficiency record is constantly being broken and has recently reached 26.0% in the lab, which is comparable to the established photovoltaic technologies such as crystalline silicon, copper indium gallium selenide (CIGS) and cadmium telluride (CdTe) solar cells. Currently, perovskite solar cells are standing at the entrance of industrialization, where huge opportunities and risks coexist. However, towards commercialization, challenges of up-scaling, stability and lead toxicity still remain, the proper handling of which could potentially lead to the widespread adoption of perovskite solar cells as a low-cost and efficient source of renewable energy. This review gives a holistic analysis of the path towards commercialization for perovskite solar cells. A comprehensive overview of the current state-of-the-art level for perovskite solar cells and modules will be introduced first. We will then discuss the challenges that get in the way of commercialization, and provide insights into the future direction of commercialization of perovskite photovoltaics.

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“…For hybrid organic-inorganic perovskites, silica encapsulation is an excel-lent choice for enhancing stability. Azar et al employed a 3-aminopropyl triethoxysilane (APTES)-assisted reprecipitation and sol-gel method to prepare stable α-FAPbI 3 nanocrystals at room temperature embedded within a silica matrix [94]. In this case, acetonitrile was used as the solvent for formamidinium iodide instead of dimethylformamide.…”

Section: Encapsulationmentioning

confidence: 99%

Advancements in Perovskite Nanocrystal Stability Enhancement: A Comprehensive Review

Liu

Lee

2023

Nanomaterials

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Over the past decade, perovskite technology has been increasingly applied in solar cells, nanocrystals, and light-emitting diodes (LEDs). Perovskite nanocrystals (PNCs) have attracted significant interest in the field of optoelectronics owing to their exceptional optoelectronic properties. Compared with other common nanocrystal materials, perovskite nanomaterials have many advantages, such as high absorption coefficients and tunable bandgaps. Owing to their rapid development in efficiency and huge potential, perovskite materials are considered the future of photovoltaics. Among different types of PNCs, CsPbBr3 perovskites exhibit several advantages. CsPbBr3 nanocrystals offer a combination of enhanced stability, high photoluminescence quantum yield, narrow emission bandwidth, tunable bandgap, and ease of synthesis, which distinguish them from other PNCs, and make them suitable for various applications in optoelectronics and photonics. However, PNCs also have some shortcomings: they are highly susceptible to degradation caused by environmental factors, such as moisture, oxygen, and light, which limits their long-term performance and hinders their practical applications. Recently, researchers have focused on improving the stability of PNCs, starting with the synthesis of nanocrystals and optimizing (i) the external encapsulation of crystals, (ii) ligands used for the separation and purification of nanocrystals, and (iii) initial synthesis methods or material doping. In this review, we discuss in detail the factors leading to instability in PNCs, introduce stability enhancement methods for mainly inorganic PNCs mentioned above, and provide a summary of these approaches.

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Effect of silica encapsulation on the stability and photoluminescence emission of FAPbI3 nanocrystals for white-light-emitting perovskite diodes

Cited by 9 publications

References 46 publications

Fabrication of [001]‐Oriented FAPbI₃‐Based Photodetector With Excellent Air Stability Via Green Anti‐Solvent Additive Engineering

Fabrication of [001]‐Oriented FAPbI₃‐Based Photodetector With Excellent Air Stability Via Green Anti‐Solvent Additive Engineering

The issues on the commercialization of perovskite solar cells

Advancements in Perovskite Nanocrystal Stability Enhancement: A Comprehensive Review

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Effect of silica encapsulation on the stability and photoluminescence emission of FAPbI3 nanocrystals for white-light-emitting perovskite diodes

Cited by 9 publications

References 46 publications

Fabrication of [001]‐Oriented FAPbI3‐Based Photodetector With Excellent Air Stability Via Green Anti‐Solvent Additive Engineering

Fabrication of [001]‐Oriented FAPbI3‐Based Photodetector With Excellent Air Stability Via Green Anti‐Solvent Additive Engineering

The issues on the commercialization of perovskite solar cells

Advancements in Perovskite Nanocrystal Stability Enhancement: A Comprehensive Review

Contact Info

Product

Resources

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Fabrication of [001]‐Oriented FAPbI₃‐Based Photodetector With Excellent Air Stability Via Green Anti‐Solvent Additive Engineering

Fabrication of [001]‐Oriented FAPbI₃‐Based Photodetector With Excellent Air Stability Via Green Anti‐Solvent Additive Engineering