Strong nonlinear absorption in perovskite films

Ganeev, R. A.; Konda, Srinivasa Rao; Yu, Zhi; Yu, Weili; Yao, Chaonan; Fu, Yue; Zhang, Ke; Chen, Guo

doi:10.1364/ome.8.001472

Cited by 41 publications

(27 citation statements)

References 46 publications

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“…Nearly quadratic dependencies of integrated PL intensity vs. power density clearly indicate the two-photon absorption (2PA) process [ 60 ]. At higher excitation power density, the integrated 2PA-excited PL intensity demonstrated a saturation-like behavior as previously reported for the MAPbBr 3 films [ 61 ] and 2D (PEA) 2 PbI 4 perovskites [ 62 ]. We can attribute this observation to the influence of strong laser radiation exposure, which can lead to perovskite NС partial destruction caused by heating.…”

Section: Resultssupporting

confidence: 78%

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: Resultssupporting

confidence: 78%

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

et al. 2022

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“…The coefficients of nonlinear refractive index ( n 2 ) retrieved from fitting using Equation (S8) of the Supporting Information are −1 × 10 −11 cm 2 W −1 at 395 nm for 79 GW cm −2 , −2.34 × 10 −11 cm 2 W −1 at 790 nm for 39 GW cm −2 , and 3.18 × 10 −11 cm 2 W −1 at 1200 nm for 20 GW cm −2 . These values are an order of magnitude larger than those of organometal halide perovskite films with femtosecond laser pulse 23,58…”

Section: Resultsmentioning

confidence: 92%

“…Nonlinear absorption properties of single crystal, nanocrystal, and filmed perovskites have been intensively studied 10–16,22–24. Recently, lead halide perovskites such as MAPbI 3 (MA = CH 3 NH 3 ) and MAPbBr 3 have shown higher multiphoton absorption (MPA) probability as the excitation wavelength increases in the IR region 10–14,22–24. Johnson et al25 reported that the observation of third‐order nonlinearities and decay kinetics in MAPbBr 3 and MAPbBr 2 I with different halogen composition.…”

Section: Introductionmentioning

confidence: 99%

Giant Nonlinear Optical Response in Triple Cation Halide Mixed Perovskite Films

Hamad

Kong

Venkatesh

et al. 2020

Advanced Optical Materials

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exceptional properties including high photostability, extremely long charge diffusion length, and thermal stability. The perovskites have become emerging high-performance materials for various optoelectronic applications such as solar cells, [1][2][3] light emitting diodes, [4,5] photodetectors, [6,7] and lasers. [8,9] The halide perovskites also exhibit strong nonlinear optical (NLO) responses, thus opening up possibilities for optoelectronic device applications. [10][11][12][13][14] For instance, organic-inorganic hybrid perovskites with large two-and three-photon absorption (2PA, 3PA) properties [14][15][16] can be utilized in applications such as bioimaging, [17,18] optical limiting, [19] optical sensor protection, [20] and optical data storage. [21] Nonlinear absorption properties of single crystal, nanocrystal, and filmed perovskites have been intensively studied. [10][11][12][13][14][15][16][22][23][24] Recently, lead halide perovskites such as MAPbI 3 (MA = CH 3 NH 3 ) and MAPbBr 3 have shown higher multiphoton absorption (MPA) probability as the excitation wavelength increases in the IR region. [10][11][12][13][14][22][23][24] Johnson et al. [25] reported that the observation of third-order nonlinearities and decay kinetics in MAPbBr 3 and MAPbBr 2 I with different halogen composition. They showed that the third-order nonlinearities of these materials are larger than those of conventional semiconductors. The photoluminescence of MAPbBr 3 single crystal has also been observed in the green region (522-550 nm) with 1044 nm femtosecond laser excitation due to 2PA. [26] Similar nonlinear optical properties were reported in inorganic perovskites, including CsPbI 3 and CsPbBr 3 . [22,27,28] Another type of perovskite, formamidinium lead iodide (FAPbI 3 ), has a low bandgap (1.47 eV) and greater photostability and thermal stability [29,30] than MAPbI 3 . However, FAPbI 3 has a weak structural stability due to humidity, which prevents it from real-life applications. [31] Recently, it has been demonstrated that the mixture of Cs and MAPbI 3 , CsMAPbI 3 , can lead to a stable solar cell with power conversion efficiency of ≈8%. [32] In addition, the mixture of Cs in FAPbI 3 , such as FA 0.9 Cs 0.1 PbI 3 , showed an improved thermal stability and results in high power conversion efficiency of ≈16.5%. [33] By using this material, Yi et al. have demonstrated power conversion efficiency up to 18% with a halide mixer I/Br. [34] The malleable association The versatility of perovskites through chemical composition modification is critical for enhancing performance of a range of potential applications such as light emitters and integrated photovoltaics. However, a systematic study on the nonlinear optical (NLO) responses of these perovskites is still lacking. Here, for the first time, the NLO properties of triple cation mixed halide perovskite (TCMHP) films, (Cs 0.06 FA 0.79 MA 0.15 )Pb (I 0.85 Br 0.15 ) 3 , using Z-scan and time-resolved spectroscopy, are investigated. It is found that TCMHP film shows strong saturable abs...

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“…[51] Table 1 summarizes such determinations of 2PA in 3D perovskites. [48,[52][53][54][55][56][57][58][59][60][61][62][63] Notice that the conditions of laser excitation, in particular, laser pulse durations greater than a few ns may result in the inaccurate determination of 2PA coefficients, since other nonlinear mechanisms, such as free-carrier absorptions [64] or thermal effects, [65] complicate the analysis of experimental data. As such, in Table 1, the 2PA measurements with ns laser pulses are excluded.…”

Section: Two-photon Absorption (2pa) In 3d Perovskite Crystalsmentioning

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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Strong nonlinear absorption in perovskite films

Cited by 41 publications

References 46 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

Giant Nonlinear Optical Response in Triple Cation Halide Mixed Perovskite Films

Perovskites: Multiphoton Absorption and Applications

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