Crystal Structures of CH3NH3PbI3 and Related Perovskite Compounds Used for Solar Cells

Oku, Takeo

doi:10.5772/59284

Cited by 144 publications

(142 citation statements)

References 24 publications

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“…For the MA0.90Cs0.10Pb0.90Sn0.10I2.80Br0.20 and MA0.90Cs0.10Pb0.90Sn0.10I2.70Br0.30 devices, the diffraction peaks of PbI2 decreased compared with the MA0.95Cs0.05Pb0.95Sn0.05I2.90Br0.10 and MA0.95Cs0.05Pb0.95Sn0.05I2.85Br0.15 devices. The photovoltaic performances of the MA0.95Cs0.05Pb0.95Sn0.05I2.90Br0.10 and MA0.95Cs0.05Pb0.95Sn0.05I2.85Br0.15 devices are superior to those of the MA0.90Cs0.10Pb0.90Sn0.10I2.80Br0.20 and MA0.90Cs0.10Pb0.90Sn0.10I2.70Br0.30 devices [18]. This result indicates that the photovoltaic performance would depend on the arrangement of the perovskite crystals.…”

Section: Resultssupporting

confidence: 64%

Fabrication and characterization of CH3NH3(Cs)Pb(Sn)I3(Br) perovskite solar cells

Ueoka¹,

Ohishi²,

Shirahata³

et al. 2017

AIP Conference Proceedings

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Section: Resultssupporting

confidence: 64%

Fabrication and characterization of CH3NH3(Cs)Pb(Sn)I3(Br) perovskite solar cells

Ueoka¹,

Ohishi²,

Shirahata³

et al. 2017

AIP Conference Proceedings

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“…Major XRD peaks resulting from the black areas of the substrates confirmed the formation of tetragonal (the room-temperature stable phase) CH3NH3PbI3 crystals [14]. Minor but important peaks at 10.68°, 13.04° and 26.36° (marked as * in Fig.…”

Section: Resultsmentioning

confidence: 94%

Growth patterns and properties of aerosol-assisted chemical vapor deposition of CH3NH3PbI3 films in a single step

Afzaal

Yates

2017

Surface and Coatings Technology

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“…Spin-orbit coupling (SOC) is included as well. We use a 4 × 4 × 4 k-grid sampling in the reciprocal space to solve the Kohn-Sham equation.We start from the prototype cubic phase of CH3NH3MX3 (M=Ge, Sn, Pb; X= I, Br, Cl) [31,32], which are usually observed at room temperature, making them of application interests. The atomic structure is illustrated in Figure 1a.…”

mentioning

confidence: 99%

First-principles Studies of Second-Order Nonlinear Optical Properties of Organic-Inorganic Hybrid Halide Perovskites

et al. 2020

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Organic-inorganic hybrid halide perovskites have ignited tremendous interests for photovoltaic applications. However, their nonlinear optical response has not been studied although many of these structures lack the centrosymmetry and exhibit ferroelectricity. In this work, we employ our developed large-scale parallel, first-principles simulation tool (ArchNLO) to explore secondorder nonlinear optical properties of a typical family of organic-inorganic hybrid halide perovskites, CH3NH3MX3 (M= Ge, Sn, Pb; X=Cl, Br, I). We find that these hybrid perovskites exhibit second harmonic generation and linear electro-optic effect. The nonlinear optical effects are strongly influenced by the types and positions of cations/anions and corresponding band gaps.Particularly, the distorted cubic phase, which is essentially triclinic, of CH3NH3SnI3 shows significant second harmonic generation and electro-optic effect, which are comparable with those widely used materials, such as GaAs. These second-order optical properties of organic-inorganic hybrid halide perovskites and their low-temperature, solution-based fabrication pave the way for achieving and implementing nonlinear optical devices with low cost.Nonlinear optical (NLO) materials play a critical role in modern electronics and photonics by providing means to alter the phase, frequency or amplitude of input electromagnetic waves. Such alternation can be realized through a variety of nonlinear processes, such as the linear electrooptic (LEO) effect, second/third/fourth/high harmonic generation (SHG/THG/FHG/HHG), and the Kerr effect, etc.[1] The group of traditional NLO materials are ternary inorganic oxides and their derivatives., e.g., lithium niobate and lithium tantalate. They have achieved widespread success due to their reliable performance, low optical loss, and good stability. However, the synthesis of these insoluble oxides requires the high temperature treatment, which hinders broader applications for flexible substrates and the integration into chip-scale nanophotonic devices. In contrast to their inorganic counterparts, organic NLO materials based on chromophores have been considered as a promising alternative due to their solution processability, faster response, and stronger NLO activities. Unfortunately, the low intrinsic stability and high optical loss severely limit their applications [2].Nowadays, organic-inorganic hybrid halide perovskites (OHPs) have attracted tremendous interest in emerging photovoltaic (PV) technologies. Extensive theoretical exploration has been applied to studying their linear optical responses related to PV, including self-consistent density functional theory (DFT) approaches as well as quasiparticle methods [3][4][5]. On the other hand, due to the asymmetry of the organic unit, ferroelectricity can be realized in this family of materials naturally or by artificially tuning [6][7][8][9]. This broken inversion symmetry also ensures NLO properties [10], especially second harmonic generation (SHG) and linear electro-optic (LEO) effects [1...

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Crystal Structures of CH3NH3PbI3 and Related Perovskite Compounds Used for Solar Cells

Cited by 144 publications

References 24 publications

Fabrication and characterization of CH3NH3(Cs)Pb(Sn)I3(Br) perovskite solar cells

Fabrication and characterization of CH3NH3(Cs)Pb(Sn)I3(Br) perovskite solar cells

Growth patterns and properties of aerosol-assisted chemical vapor deposition of CH3NH3PbI3 films in a single step

First-principles Studies of Second-Order Nonlinear Optical Properties of Organic-Inorganic Hybrid Halide Perovskites

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