Halide Perovskites for Nonlinear Optics

Xu, Jialiang; Li, Xinyue; Xiong, Jianbo; Yuan, Chunqing; Semin, Sergey; Rasing, T.H.M.; Bu, Xian‐He

doi:10.1002/adma.201806736

Cited by 266 publications

(259 citation statements)

References 122 publications

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“…In addition, compounds 1 and 2 display good stability, with less than 10 % decrease in SHG intensity after four switching cycles (Figure b,d). These experimental results indicate that both 1 and 2 have great potential for application in NLO switches …”

Section: Resultsmentioning

confidence: 65%

Two Rare‐Earth Molecular Ferroelectrics with High Curie Temperatures, Large Spontaneous Polarization, Switchable Second Harmonic Generation Effects, and Strong Photoluminescence

Yang

Dong

et al. 2020

Chemistry A European J

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Smartm ultifunctional molecular ferroelectrics bearing high Curie temperatures and diverse excellent physical properties, such as second harmonic generation (SHG) responses, luminescence, and semiconductivity, among others, have significant applicationsb ut have seldom been documented. Herein, the rare-earth metals Nd and Pr are introduced into as imple molecular system (nBu 4 N) 3 [M(NO 3 ) x (SCN) y ]( nBu 4 N = tetrabutyl ammonium, M = rare-earth metal, nBu = CH 3 CH 2 CH 2 CH 2 ), and two new multifunctional molecular ferroelectrics are obtained:Their distinct heat and dielectric anomaly dependence on temperature verifies that compounds 1 and 2 experience high-temperature para-ferroelectric phase transitions at 408 and 413 K, respectively.S trikingly,b oth molecular ferroelectrics possess large spontaneousp olarizationw ith P s values of 9.05 and 8.50 mCcm À2 ,r espectively,a nd are further characterized by the appearance of multiple intersecting non-1808 domains and polarization switching behavior.I np articular,c ompounds 1 and 2 show good stability with only a small decrease in SHG intensity after switching cycles,s uggesting that they have great potentialfor applicationinnonlinear optical( NLO) switches. Simultaneously,t he rare-earth compounds 1 and 2 present brighty ellow-red andb right green fluorescence, respectively,atr oom temperature. Figure 5. UV/Vis absorptionspectra of compounds 1 (a) and 2 (c), and fluorescence emission spectraofc ompounds 1 (b) and 2 (d).

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Section: Resultsmentioning

confidence: 65%

Two Rare‐Earth Molecular Ferroelectrics with High Curie Temperatures, Large Spontaneous Polarization, Switchable Second Harmonic Generation Effects, and Strong Photoluminescence

Yang

Dong

et al. 2020

Chemistry A European J

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“…The 2PA coefficients of our heterostructures are overall several orders of magnitude larger than the other materials. [11] Furthermore, direct photodetection of near infrared light (980 nm) was demonstrated with a responsivity on the order of 10 −7 A W −1 under an applied voltage of 1 V due to the high 2PA coefficient in our heterostructures. The demonstration of direct infrared photodetections in 2D halide perovskite heterostructures provides a possible alternative in advanced integrated optoelectronics.…”

mentioning

confidence: 85%

Giant Nonlinear Optical Response in 2D Perovskite Heterostructures

Wang

Gao

et al. 2019

Advanced Optical Materials

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2D layered halide perovskites have attracted significant attention. Apart from the linear optical properties, it is also intriguing to explore the nonlinear optics of 2D layered halide perovskites and their heterostructures. Previous nonlinear optical (NLO) studies of 2D perovskites primarily focus on the thin films or microplates. Herein, the NLO properties of (n‐C4H9NH3)2PbI4/(n‐C4H9NH3)2(CH3NH3)Pb2I7 heterostructures with centimeter size are systematically studied. The NLO properties can be continuously tuned by changing the thickness. A giant two‐photon absorption (2PA) coefficient up to 44 cm MW−1 is obtained for the heterostructures with a total thickness of 20 µm based on the nonlinear transmittance measurement. Additionally, strong multiphoton‐induced photoluminescence is observed in the heterostructures. It is proposed that the giant 2PA coefficient might arise from the small thickness (≈1 µm) of (n‐C4H9NH3)2(CH3NH3)Pb2I7 layer and possibly the nonradiative energy transfer between the different constituting layers within the heterostructures through an antenna‐like effect. Finally, benefiting from the giant 2PA coefficient, direct detection of 980 nm light is demonstrated with a responsivity of 10−7 A W−1 in the heterostructures. The findings suggest the promising applications of 2D perovskite heterostructures in the infrared photodetection and some other nonlinear absorption related optoelectronic devices.

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“…Perovskites with tunable chemical structures and electronic bandgaps are highly promising nonlinear optical (NLO) materials for advanced techniques . Extensive investigations have been focused on the third‐ and high‐order NLO performance of perovskite materials because of their large NLO coefficients.…”

Section: Properties Of Chiral Perovskite Materialsmentioning

confidence: 99%

“…Perovskites with tunable chemical structures and electronic bandgaps are highly promising nonlinear optical (NLO) materials for advanced techniques. [49][50][51][52] Extensive investigations have been focused on the third-and high-order NLO performance of perovskite materials because of their large NLO coefficients. Nevertheless, demands for future optical application, like information transmission, processing, and storage, would take into account the second-order NLO responses of the optical component.…”

Section: Nonlinear Optical Propertiesmentioning

confidence: 99%

Chiral Perovskites: Promising Materials toward Next‐Generation Optoelectronics

Dong

Zhang

et al. 2019

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Halide perovskites have emerged as a type of extremely promising material for their diverse chemical and electronic structures along with their brilliant optoelectronic properties. The introduction of chirality into perovskite scaffolds, generating a novel concept of chiral perovskite materials, offers an immense step forward toward the development of smart optoelectronic and spintronic materials and devices. The present Review summarizes recent advances in such an emerging field regarding the design and construction of chiral perovskite materials, along with their optoelectronic performances. In addition, an outlook of future challenges as well as the potential significance of the chiral perovskite family on the optical communication is proposed.

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Halide Perovskites for Nonlinear Optics

Cited by 266 publications

References 122 publications

Two Rare‐Earth Molecular Ferroelectrics with High Curie Temperatures, Large Spontaneous Polarization, Switchable Second Harmonic Generation Effects, and Strong Photoluminescence

Two Rare‐Earth Molecular Ferroelectrics with High Curie Temperatures, Large Spontaneous Polarization, Switchable Second Harmonic Generation Effects, and Strong Photoluminescence

Giant Nonlinear Optical Response in 2D Perovskite Heterostructures

Chiral Perovskites: Promising Materials toward Next‐Generation Optoelectronics

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