Broadband ultrafast nonlinear optical studies revealing exciting multi-photon absorption coefficients in phase pure zero-dimensional Cs<sub>4</sub>PbBr<sub>6</sub> perovskite films

Krishnakanth, K. N.; Seth, Sudipta; Samanta, Anunay; Rao, S. Venugopal

doi:10.1039/c8nr06969g

Cited by 69 publications

(77 citation statements)

References 59 publications

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“…3c, Table S6†). 28 The results obtained were consistent with those of 3PEF experiments: DZ1 unveiled an enhanced 3PA cross-section in the aggregated state. Meanwhile, a much larger 3PA cross-section could be obtained via the Z-scan method because it can effectively shield the energy consumed by the thermal effect and molecular rotation during photo-absorption 29.…”

Section: Resultssupporting

confidence: 79%

Enhanced three-photon activity triggered by the AIE behaviour of a novel terpyridine-based Zn(ii) complex bearing a thiophene bridge

Feng

Zhang

et al. 2019

Chem. Sci.

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Section: Resultssupporting

confidence: 79%

Enhanced three-photon activity triggered by the AIE behaviour of a novel terpyridine-based Zn(ii) complex bearing a thiophene bridge

Feng

Zhang

et al. 2019

Chem. Sci.

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“…Overall, the β values of TCMHP film are significantly higher than those of MAPbI 3 film and an order of magnitude higher near to the peak intensity of 35 GW cm −2 . While we could not observe the 3PA response for MAPbI 3 film, the obtained γ values of TCMHP film for each intensity are much larger than those of other perovskite film, micro‐/nanocrystals, and single crystal 15,16,56–60. The β and γ values of various types of perovskite materials reported in previous literatures and current study are summarized in Table 1 .…”

Section: Resultsmentioning

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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“…Analogous to low‐dimensional 3D metal‐halide perovskites, RPPs (including 2D metal‐halide perovskites, n = 1) and 0D metal‐halide perovskites in low dimension possess fascinating third‐order and higher‐order nonlinear optical characteristics. [ 112–120 ] Concretely, giant and tunable third‐order nonlinear optical response such as 2PA, [ 112,115,117,118 ] SA, [ 118 ] THG, [ 116,119 ] nonlinear refraction, [ 118 ] and higher‐order 3PA [ 114,117 ] have been revealed in low‐dimensional RPPs, thanks to the superb excitonic resonance enhancement. Moreover, targeting at further promoting the nonlinear optical properties of 2D metal‐halide perovskites (RPPs, n = 1), the hybrid dielectric structures between them and dielectric microspheres have been developed to achieve cooperative enhancement.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Photonics Using Low‐Dimensional Metal‐Halide Perovskites: Recent Advances and Future Challenges

et al. 2021

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Low‐dimensional metal‐halide perovskites have exhibited significantly superior nonlinear optical properties compared to traditional semiconductor counterparts, thanks to their peculiar physical and electronic structures. Their exceptional nonlinear optical characteristics make them excellent candidates for revolutionizing widespread applications. However, the research of nonlinear photonics based on low‐dimensional metal‐halide perovskites is in its infancy. There is a lack of comprehensive and in‐depth summary of this research realm. Here, the state‐of‐the‐art research progress related to third‐and higher‐order nonlinear optical properties of low‐dimensional metal‐halide perovskites with diverse crystal structures from 3D down to 0D, together with their practical applications, is summarized comprehensively. Critical discussions are offered on the fundamental mechanisms beneath their exceptional nonlinear optical performance from the physics viewpoint, attempting to disclose the role of intrinsic attributes (e.g., composition, bandgap, size, shape, and structure) and external modulation strategies (e.g., developing core–shell structures, transition metal ion doping, and hybridization with dielectric microspheres) in tuning the response. Additionally, their potential applications in nonlinear photonics, nonlinear optoelectronics, and biophotonics are systematically and thoroughly summed up and categorized. Lastly, insights into the current technical challenges and future research opportunities of nonlinear photonics based on low‐dimensional metal‐halide perovskites are provided.

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Broadband ultrafast nonlinear optical studies revealing exciting multi-photon absorption coefficients in phase pure zero-dimensional Cs₄PbBr₆ perovskite films

Abstract: Lead halide perovskite nanocrystals have recently demonstrated promising nonlinear optical properties such as strong two-photon absorption, three-photon absorption, four-photon absorption and their respective cross-sections.

Cited by 69 publications

References 59 publications

Enhanced three-photon activity triggered by the AIE behaviour of a novel terpyridine-based Zn(ii) complex bearing a thiophene bridge

Enhanced three-photon activity triggered by the AIE behaviour of a novel terpyridine-based Zn(ii) complex bearing a thiophene bridge

Giant Nonlinear Optical Response in Triple Cation Halide Mixed Perovskite Films

Nonlinear Photonics Using Low‐Dimensional Metal‐Halide Perovskites: Recent Advances and Future Challenges

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Broadband ultrafast nonlinear optical studies revealing exciting multi-photon absorption coefficients in phase pure zero-dimensional Cs4PbBr6 perovskite films

Abstract: Lead halide perovskite nanocrystals have recently demonstrated promising nonlinear optical properties such as strong two-photon absorption, three-photon absorption, four-photon absorption and their respective cross-sections.

Cited by 69 publications

References 59 publications

Enhanced three-photon activity triggered by the AIE behaviour of a novel terpyridine-based Zn(ii) complex bearing a thiophene bridge

Enhanced three-photon activity triggered by the AIE behaviour of a novel terpyridine-based Zn(ii) complex bearing a thiophene bridge

Giant Nonlinear Optical Response in Triple Cation Halide Mixed Perovskite Films

Nonlinear Photonics Using Low‐Dimensional Metal‐Halide Perovskites: Recent Advances and Future Challenges

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Broadband ultrafast nonlinear optical studies revealing exciting multi-photon absorption coefficients in phase pure zero-dimensional Cs₄PbBr₆ perovskite films