Fabrication of organic-inorganic perovskite thin films for planar solar cells via pulsed laser deposition

Liang, Yangang; Yao, Yangyi; Zhang, Xiaohang; Hsu, Wei‐Yen; Gong, Yunhui; Shin, Jongmoon; Wachsman, Eric D.; Dagenais, M.; Takeuchi, Ichiro

doi:10.1063/1.4939621

Cited by 34 publications

(13 citation statements)

References 39 publications

(49 reference statements)

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“…9,10 Various fabrication methods of MAPbI3 thin films have been reported to date. 11,12 In general, the most commonly used deposition techniques can be categorized into the one-step precursor deposition methods13 and two-step deposition methods.14 It is customarily accepted that the twostep deposition provides better control of the composition, the thickness, and the morphology of the MAPbI3-based films, thus leading to higher photovoltaic performances of the final devices. 15 On the other hand, one-step solution-casting protocols seem to be more suitable for manufacturing lowcost MAPbI3-based devices at large scale.…”

Section: Introductionmentioning

confidence: 99%

Morphology and Photoluminescence of CH₃NH₃PbI₃ Deposits on Nonplanar, Strongly Curved Substrates

et al. 2018

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Organic−inorganic metal halide perovskites have recently attracted increasing attention as highly efficient light harvesting materials for photovoltaic applications. The solution processability of these materials is one of their major advantages on the route toward fabrication of low-cost solar cells and optoelectronic devices. However, the precise control of crystallization and morphology of organometallic perovskites deposited from solutions, considered crucial for enhancing the final photovoltaic performance, still remains challenging. In this context, here, we report on growing microcrystalline deposits of methylammonium lead triiodide perovskite, CH3NH3PbI3 (MAPbI3), by one-step solution casting on cylinder-shaped quartz substrates (rods) having diameters in the range of 80 to 1800 μm. We show that the substrate curvature has a strong influence on morphology of the obtained polycrystalline deposits of MAPbI3. Specifically, a marked size reduction of MAPbI3 microcrystallites concomitant with an increased crystal packing density was observed with increasing the substrate curvatures. In contrast, although the crystallite width and length markedly decreased for substrates with higher curvatures, the photoluminescence (PL) spectral peak positions did not significantly evolve for MAPbI3 deposits on substrates with different diameters. The crystallite size reduction and a denser coverage of microcrystalline MAPbI3 deposits on cylinder-shaped substrates with higher curvatures were attributed to two major contributions, both related to the annealing step of the MAPbI3 deposits. In particular, the diameter-dependent variability of the heat capacities and the substrate curvature-enhanced solvent evaporation rate seemed to contribute the most to the crystallization process and the resulting morphology changes of MAPbI3 deposits on cylinder-shaped quartz substrates with various diameters. The longitudinal geometry of cylinder-shaped substrates provided also a facile solution for checking the PL response of the deposits of MAPbI3 exposed to the flow of various gaseous media, such as oxygen (O2), nitrogen (N2), and argon (Ar). Specifically, under excitation with λexc = 546 nm, the rapid and pronounced decreases and increases of PL signals were observed under intermittent subsequent exposures to O2 and N2, respectively. Overall, the approach reported herein inspires novel, cylinder-shaped geometries of MAPbI3 deposits, which can find applications in low-cost photo-optical devices, including gas sensors.

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Section: Introductionmentioning

confidence: 99%

Morphology and Photoluminescence of CH₃NH₃PbI₃ Deposits on Nonplanar, Strongly Curved Substrates

et al. 2018

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“…The XRD pattern confirm that the film possesses tetragonal perovskite structure preferentially grown along (1 1 0) crystallographic orientation, while the (1 1 2), (2 0 2), (2 2 0), (3 1 0), (2 2 4) and (3 3 0) peaks are significantly weaker. The (0 0 2) orientation corresponds to the PbI 2 formed by the decomposition of CH 3 NH 3 PbI 3‐x Cl x in ambient growth . A monoclinic dihydrate (CH 3 NH 3 ) 4 PbI 6 ⋅2H 2 O phase at 2θ =11.66° confirms the formation of isolated [PbI 6 ] 4− phase .…”

Section: Resultsmentioning

confidence: 91%

Multi‐Color Excitonic Emissions in Chemical Dip‐Coated Organolead Mixed‐Halide Perovskite

et al. 2018

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Organolead mixed-halide perovskites capable of emitting multiple colors not only allow the fabrication of compact devices but also improves the functionality of light emitting devices beyond conventional displays. Here we demonstrate a costeffective chemical dip-coating technique to grow highly reproducible methylammonium-lead-halide perovskite film, which exhibits highly efficient multi-color emissions of red, green and ultraviolet. The power-and temperature-resolved cathodoluminescence analyses reveal that these emissions are attributed to localized excitions with thermal activation energies of 27, 29 and 57 meV. The non-linear fitting of these emission band widths within the frame work of Boson model reveals that excitons are strongly coupled to the lattice with energy of 28 meV, which is consistent with the Raman measurement. This work presents an effective method for the deposition of high-quality and large-area perovskite film, which could be useful for high-performance multi-color display devices.[a] A.

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“…Liu et al have reported the first vapor-deposited perovskite films through dual-source evaporate PbCl 2 and CH 3 NH 3 I on the FTO substrates [5]. Later, smooth and highly crystalline perovskite thin films were prepared by pulsed laser deposition [6]. Large amount of researches have revealed that the quality has a great influence on the precursor ratio control and deposition rate.…”

Section: Vapor Depositionmentioning

confidence: 99%

Introductory Chapter: Perovskite Materials and Advanced Applications

Geng¹,

Tian²,

Ren³

2020

Perovskite Materials, Devices and Integration

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Perovskite is considered one of the most promising materials of the twenty-first century. In the past few decades, the perovskite has attracted broad attention and made great progress in energy storage, pollutant degradation as well as optoelectronic devices due to its superior photoelectric and catalytic properties. All materials with ABX 3 structure are collectively referred to as perovskite materials, which can be simply divided into inorganic perovskite and organic-inorganic hybrid perovskite. The tolerance factor is usually used to indicate the structure of perovskite. Each ion radius in perovskite oxide should satisfy the following equation: t = ((r A + r O ))/ (√2(r B + r O )), where r O , r A , and r B are the radii of respective ions A, B, and oxygen elements. So far, various perovskites, such as Ba 2 XOsO 6 (X = Mg, Zn, Cd), Cs 2 AgBiBr 6 , and CH 3 NH 3 PbX 3 (X = Cl, Br, I), have been synthesized and used in different fields. For example, perovskite oxides play a pivotal role in half-metallic ferromagnetic, spintronic applications, energy storage, and pollutant degradation, while the halide perovskite is used for LEDs and photodetectors. Currently, diverse preparation methods have been developed for the synthesis of perovskite with different dimensions. For instance, solid phase synthesis method and sol-gel method are used for synthesizing perovskite oxide and hydrothermal method for halide perovskite.

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Fabrication of organic-inorganic perovskite thin films for planar solar cells via pulsed laser deposition

Cited by 34 publications

References 39 publications

Morphology and Photoluminescence of CH₃NH₃PbI₃ Deposits on Nonplanar, Strongly Curved Substrates

Morphology and Photoluminescence of CH₃NH₃PbI₃ Deposits on Nonplanar, Strongly Curved Substrates

Multi‐Color Excitonic Emissions in Chemical Dip‐Coated Organolead Mixed‐Halide Perovskite

Introductory Chapter: Perovskite Materials and Advanced Applications

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Fabrication of organic-inorganic perovskite thin films for planar solar cells via pulsed laser deposition

Cited by 34 publications

References 39 publications

Morphology and Photoluminescence of CH3NH3PbI3 Deposits on Nonplanar, Strongly Curved Substrates

Morphology and Photoluminescence of CH3NH3PbI3 Deposits on Nonplanar, Strongly Curved Substrates

Multi‐Color Excitonic Emissions in Chemical Dip‐Coated Organolead Mixed‐Halide Perovskite

Introductory Chapter: Perovskite Materials and Advanced Applications

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Product

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Morphology and Photoluminescence of CH₃NH₃PbI₃ Deposits on Nonplanar, Strongly Curved Substrates

Morphology and Photoluminescence of CH₃NH₃PbI₃ Deposits on Nonplanar, Strongly Curved Substrates