Two metal-free perovskite molecules with different 3D frameworks show reversible phase transition, dielectric anomaly and SHG effect

zhang, Haina; You, Xiao‐Zeng; Zhang, Mengxia; Guo, Wei; Wei, Zhenhong; Cai, Hu

doi:10.1039/d2dt03889g

Cited by 7 publications

(3 citation statements)

References 70 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At room temperature, the intensity of SHG exhibits a high state (“SHG-on state”). By using halogen substitution methods to control the structure, molecular design engineering has resulted in a wider SHG-active temperature range. ,− The SHG response of (4-Br-BTAB)ReO 4 was significantly stronger than that of compounds 1 and 2 , and the dynamic change of the signal intensity showed a significant step-like shape, with an SHG efficiency of about 3.23 times that of KDP. Once heated near the phase transition point, the SHG intensity decreased in a stepwise manner (“SHG-off state”) and then remained approximately zero above the phase transition point (Figure b and Figure S7).…”

Section: Resultsmentioning

confidence: 99%

Tuning and Enhancing Nonlinear Optical Behavior in Hybrid Arylammonium Perrhenate Salts through Halogen Substitution

Wan,

Wang,

Zhong

et al. 2023

Chem. Mater.

View full text Add to dashboard Cite

In the realm of optical and quantum computing, second-harmonic generation (SHG) serves as a valuable nonlinear optical element for both optical signal processing and quantum information processing. Herein, we report a series of innovative nonlinear optical (NLO) materials, denoted as (4-F-BTAB)ReO 4 , (4-Cl-BTAB)ReO 4 , and (4-Br-BTAB)ReO 4 (BTAB = para-halobenzyltrimethylammoniun), which show illustrious high-contrast "off-on−off" SHG conversion over a broad temperature range. The precise halogen modification of cations not only achieves significant SHG signal intensity (1.08 × KDP−3.23 × KDP) but also elevates phase transition temperatures from 415.5 to 474.4 K. Notably, (4-Br-BTAB)ReO 4 demonstrates a heightened SHG-active state with an increase of nearly 60 K, along with a wide band gap of 3.646 eV and enhanced piezoresponse performance of 2.25 V. This study contributes to the diversification of switchable NLO materials.

show abstract

Section: Resultsmentioning

confidence: 99%

Tuning and Enhancing Nonlinear Optical Behavior in Hybrid Arylammonium Perrhenate Salts through Halogen Substitution

Wan,

Wang,

Zhong

et al. 2023

Chem. Mater.

View full text Add to dashboard Cite

show abstract

“…Metal-free catalysts have many advantages over metallic catalysts in terms of good activity, long lifetime, no poisoning and cross-effects, and inherent advantages such as environmental friendliness and low cost. [15][16][17][18] Therefore, the development of metal-free catalysts is of great economic and scientic importance. In recent years, emerging carbon materials have been widely used as metal-free catalysts or carriers.…”

Section: Introductionmentioning

confidence: 99%

Metal-free B₄@g-C₃N₄: a potential electrocatalyst for highly selective and efficient conversion of CO to ethanol

Hao,

Ma,

Jia

et al. 2023

J. Mater. Chem. A

View full text Add to dashboard Cite

show abstract

“…Through our continuous exploration of multifunctional materials, we focused on designing spherical molecular structures to induce structural phase transitions. − While the crystal structure of the compound [1S,4S-2,5–2.1.1-H 2 dabch]Br 2 has been previously reported, our experimental findings suggest that this compound does not manifest characteristics such as DSC or SHG behaviors. On this basis, we explore the discovery that [1S,4S-2,5–2.2.1-H 2 dabch]I 2 serves as a promising phase-transition and second harmonic generation (SHG) material.…”

Section: Introductionmentioning

confidence: 99%

Alkali Metal Organic–Inorganic Hybrid Compounds with Different Crystal Dimensions Show Phase-Transition, Dielectric, and SHG Properties Based on a Quasi-Spherical Amine (1S,4S)-2,5-Diazabicyclo[2.2.1]heptane

Guo,

Yang,

et al. 2023

Inorg. Chem.

Self Cite

View full text Add to dashboard Cite

Reactions of a chiral and quasi-spherical molecule [1S,4S-2,5−2.2.1-H 2 dabch]I 2 (1) with alkali metal halide MX (M = Na, K, Cs; X = Cl, Br) at room temperature produced a series of organic−inorganic hybrid (OIH) materials 4). The single-crystal X-ray diffraction analysis revealed that the organic−inorganic framework structures comprised of the templating ligand and alkali metal halides (NaBr, CsCl, KBr) displayed dimensions spanning from one-dimensional (1D) to three-dimensional (3D). Moreover, the results of both differential scanning calorimetry (DSC) and dielectric measurements demonstrated that compounds 1−4 displayed reversible, high-temperature phase transitions and noticeable dielectric anomalies. In addition, the temperature-dependent second harmonic generation (SHG) results revealed crystals 1 and 3 can switch from the SHG-ON to the SHG-OFF state, which was proved by the variable-temperature X-ray diffraction. This research aims to streamline the exploration of multifunctional second harmonic generation (SHG) and dielectric materials that have been synthesized using chiral ligands and alkali metals. This will provide researchers with enhanced opportunities to delve further into this specific research domain.

show abstract

Two metal-free perovskite molecules with different 3D frameworks show reversible phase transition, dielectric anomaly and SHG effect

Abstract: Three-dimensional (3D) organic-inorganic hybrid perovskites (OIHP) have attracted tremendous research interest due to their unique structure and promising applications. However, the research on the design, synthesis and properties of this...

Cited by 7 publications

References 70 publications

Tuning and Enhancing Nonlinear Optical Behavior in Hybrid Arylammonium Perrhenate Salts through Halogen Substitution

Tuning and Enhancing Nonlinear Optical Behavior in Hybrid Arylammonium Perrhenate Salts through Halogen Substitution

Metal-free B₄@g-C₃N₄: a potential electrocatalyst for highly selective and efficient conversion of CO to ethanol

Alkali Metal Organic–Inorganic Hybrid Compounds with Different Crystal Dimensions Show Phase-Transition, Dielectric, and SHG Properties Based on a Quasi-Spherical Amine (1S,4S)-2,5-Diazabicyclo[2.2.1]heptane

Contact Info

Product

Resources

About

Two metal-free perovskite molecules with different 3D frameworks show reversible phase transition, dielectric anomaly and SHG effect

Abstract: Three-dimensional (3D) organic-inorganic hybrid perovskites (OIHP) have attracted tremendous research interest due to their unique structure and promising applications. However, the research on the design, synthesis and properties of this...

Cited by 7 publications

References 70 publications

Tuning and Enhancing Nonlinear Optical Behavior in Hybrid Arylammonium Perrhenate Salts through Halogen Substitution

Tuning and Enhancing Nonlinear Optical Behavior in Hybrid Arylammonium Perrhenate Salts through Halogen Substitution

Metal-free B4@g-C3N4: a potential electrocatalyst for highly selective and efficient conversion of CO to ethanol

Alkali Metal Organic–Inorganic Hybrid Compounds with Different Crystal Dimensions Show Phase-Transition, Dielectric, and SHG Properties Based on a Quasi-Spherical Amine (1S,4S)-2,5-Diazabicyclo[2.2.1]heptane

Contact Info

Product

Resources

About

Metal-free B₄@g-C₃N₄: a potential electrocatalyst for highly selective and efficient conversion of CO to ethanol