Nonlinear Optics in Lead Halide Perovskites: Mechanisms and Applications

Shen, Weicheng; Chen, Jun; Wu, Jianrong; Li, Xiaoming; Zeng, Haibo

doi:10.1021/acsphotonics.0c01501

Cited by 98 publications

(76 citation statements)

References 94 publications

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“…Despite the great practical interest in these processes, their utilization is limited due to the lack of highly efficient nonlinear materials, and the employment of perovskites in this field is of tremendous importance. B-cite doping is considered to be an effective tool for the further optimization of nonlinear optical responses from metal halide perovskite NCs [ 29 , 30 ]; however, very few reports have been published on this topic. Ketavath et al, recently showed that 0.08–0.1% Ni 2+ doping of 2D CsPbBr 3 NCs induced a ~2.5-fold increase in the two-photon absorption (2PA) cross-section [ 31 ].…”

Section: Introductionmentioning

confidence: 99%

Improved One- and Multiple-Photon Excited Photoluminescence from Cd2+-Doped CsPbBr3 Perovskite NCs

et al. 2022

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Metal halide perovskite nanocrystals (NCs) attract much attention for light-emitting applications due to their exceptional optical properties. More recently, perovskite NCs have begun to be considered a promising material for nonlinear optical applications. Numerous strategies have recently been developed to improve the properties of metal halide perovskite NCs. Among them, B-site doping is one of the most promising ways to enhance their brightness and stability. However, there is a lack of study of the influence of B-site doping on the nonlinear optical properties of inorganic perovskite NCs. Here, we demonstrate that Cd2+ doping simultaneously improves both the linear (higher photoluminescence quantum yield, larger exciton binding energy, reduced trap states density, and faster radiative recombination) and nonlinear (higher two- and three-photon absorption cross-sections) optical properties of CsPbBr3 NCs. Cd2+ doping results in a two-photon absorption cross-section, reaching 2.6 × 106 Goeppert-Mayer (GM), which is among the highest reported for CsPbBr3 NCs.

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Section: Introductionmentioning

confidence: 99%

Improved One- and Multiple-Photon Excited Photoluminescence from Cd2+-Doped CsPbBr3 Perovskite NCs

et al. 2022

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“…In particular, an increasing attention has been paid to the NLO properties of perovskites. [25][26][27][28][29] Very recently, when we were preparing this review, two comprehensive reviews were published by Xu et al [27] and Zhou et al, [28] who have discussed second-, third-, and higher-order NLO effects in halide perovskites. Among the NLO effects in perovskites, multiphoton absorption (MPA) (including two-photon absorption (2PA), three-photon absorption (3PA), and higher-order nonlinear photon absorption) results from the odd-order, nonlinear polarization of a crystal, ( ) NL P t , which can be expressed as…”

Section: Introductionmentioning

confidence: 99%

Perovskites: Multiphoton Absorption and Applications

Zhou

Ran

Fan

et al. 2021

Advanced Optical Materials

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critical temperature superconductivity, ferroelectric semiconductor-based cells for solar-energy conversion and others. Analogous to the oxide counterparts, metal lead halide perovskites (MLHPs) (represented by CsPbX 3 , X = I, Br, Cl) also exhibit a cubic lattice in 3Ds at room temperature, as illustrated in Figure 1, but with high-defect tolerance. [9,10] Commonly, their defect tolerance is a major enabling factor for their remarkable optoelectronic properties, such as considerable optical absorption coefficients, long carrier diffusion lengths, and high photoluminescence (PL) efficiency. [11][12][13][14] Furthermore, MLHPs can be synthesized cost effectively on large scales through simple solutionbased processes. As a result, the MLHPs have been investigated for optoelectronic applications in photovoltaics, light-emitting diodes, laser devices, and photodetectors. Recently, the lead halide hybrid organic-inorganic perovskites (HOIPs) have been emerging as a new territory of photovoltaic materials. The HOIPs comprise earth-abundant elements, and yet, exhibit outstanding semiconducting and light-absorption properties. [15,16] In particular, the power-conversion efficiency of HOIP-based devices has surpassed 20% over several years of research and development. [17,18] The HOIPs have a large structural diversity. When the A-site is only occupied by small organic cations (typically methylammonium, MA), they ideally exhibit 3D structures in an octahedral coordination.More interestingly, the HOIPs can exist in layered structures, or 2Ds. 2D HOIPs with unique layered structures are constructed from alternately stacked molecular sheets of organic cations and inorganic anions, as illustrated in Figure 1. The stacking sheets in 2D HOIPs can be regarded as a multiquantum-well structure in semiconductor physics, greatly enhancing the quantum and/or dielectric confinements. As a result, the free charge carriers (electrons or holes) can be strongly confined in atomic-thickness layers, readily forming excitons, which can be treated theoretically as hydrogen-like quasi-particles but moving in 2Ds. As a result, NLO effects can be greatly enhanced along with strong exciton-photon coupling. [19][20][21][22] 2D perovskites have opened up a new opportunity for both fundamental research and practical applications in ultrathin and flexible optoelectronics devices.Moreover, perovskites can also be synthesized into various lower-dimensional structures such as nanocrystals with controllable shapes and sizes. [11,23,24] This allows ones to modulate the quantum confinement effect in the lower-dimensional structures to achieve desirable light-to-electrical conversion, light-emitting, lasing, photodetecting, and NLO properties for various optoelectronic applications.Recently, there have been intensive and extensive research works on perovskites because of their excellent electrical and optical properties. This review is focused on their multiphoton absorption (MPA) and applications. All the MPA coefficients or cross-sections reported in the ...

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“…Reduced-dimensional metal-halide perovskites integrate multiple advantages of tunable bandgap, tightly binding excitons, high photoluminescence quantum yield, and structure tunability originating from bulky interlayer cations, thus leading to broad applications in optoelectronic and optical devices. [1][2][3][4][5][6][7] However, conventional metal-halide perovskites intrinsically 1D microstructure arrays can be prepared by traditional solutionprocessing methods, such as inkjet printing, nanoimprinting lithography, and dip-pen lithography, through spatial manipulation of the microdroplet. [25][26][27][28][29] Nonetheless, these methods have limitations in controlling the capillary flow, which is reflected by the uncontrollable coffee-ring effect and random crystal-growth orientation in the dewetting process.…”

Section: Introductionmentioning

confidence: 99%

“…Reduced‐dimensional metal‐halide perovskites integrate multiple advantages of tunable bandgap, tightly binding excitons, high photoluminescence quantum yield, and structure tunability originating from bulky interlayer cations, thus leading to broad applications in optoelectronic and optical devices. [ 1–7 ] However, conventional metal‐halide perovskites intrinsically crystallize into centrosymmetric space groups without second‐order optical nonlinearity. [ 8–10 ] To break the inversion symmetry of the crystal, it is effective to induce chiral organic cations.…”

Section: Introductionmentioning

confidence: 99%

Layered Metal‐Halide Perovskite Single‐Crystalline Microwire Arrays for Anisotropic Nonlinear Optics

Zhao

Guo

et al. 2021

Adv Funct Materials

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Hybrid organic-inorganic metal-halide perovskites with diverse structure tunability are promising for nonlinear-optical (NLO) applications, such as frequency conversion and electro-optic modulation. For integrated NLO devices, single-crystalline perovskite micro-and nanostructures with high quality and multifunctionality are in high demand. However, the fabrication of singlecrystalline perovskites arrays is still challenging in regulating liquid dynamics and crystal growth simultaneously. Herein, a capillary-bridge-manipulated strategy is established to steer the dewetting process of microdroplets and provide spatial confinement for crystal growth. These 1D perovskite microwire arrays show regulated geometry, pure orientation, and single crystallinity. Chiral ammonium molecules are introduced into the metal-halide octahedral quantum wells to break the centrosymmetry of the perovskite, allowing the perovskite to exhibit excellent second-order NLO properties. The as-prepared microwire arrays also demonstrate linearly polarized second harmonic generation and two-photon fluorescence. Microwire arrays exhibit higher second harmonic conversion efficiency compared with their polycrystalline thin-film counterparts. It is believed that this strategy for the fabrication of chiral perovskite microstructure arrays holds great promise for NLO integrated applications and opens up an avenue to explore multifunctional chiral perovskites.

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Nonlinear Optics in Lead Halide Perovskites: Mechanisms and Applications

Cited by 98 publications

References 94 publications

Improved One- and Multiple-Photon Excited Photoluminescence from Cd2+-Doped CsPbBr3 Perovskite NCs

Improved One- and Multiple-Photon Excited Photoluminescence from Cd2+-Doped CsPbBr3 Perovskite NCs

Perovskites: Multiphoton Absorption and Applications

Layered Metal‐Halide Perovskite Single‐Crystalline Microwire Arrays for Anisotropic Nonlinear Optics

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