Positional isomers of heterocyclic azo dyes: Investigation of NLO properties by Z-scan and correlative DFT studies

Ghanavatkar, Chaitannya W.; Mishra, Virendra; Ayare, Nitesh N.; Mathew, Elizabeth; Thomas, Sijo S.; Joe, I. Hubert; Sekar, Nagaiyan

doi:10.1016/j.jics.2021.100091

Cited by 3 publications

(3 citation statements)

References 74 publications

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“…The computed values of global descriptors are compared with those in the literature and have proven to be much more efficient. Thus, they can be used for NLO applications [36,37] …”

Section: Resultsmentioning

confidence: 99%

Experimental and Theoretical Investigation of 3‐[(2‐chlorophenyl)diazenyl]pyridine‐2,6‐diamine as Optical Limiter

John,

Benny,

Philip

et al. 2023

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Azobenzenes undergo reversible trans‐cis photoisomerization and have been extensively studied as photoresponsive material. In contrast, azopyridines have garnered relatively less attention despite their similar photochemistry. When compared to azobenzene, azopyridines offer more opportunities for material design through hydrogen bonding and coordination chemistry. Here, we report the isomerization for 3‐[(2‐chlorophenyl)diazenyl]pyridine‐2,6‐diamine (1od) through an integrative experimental and computational study. Notably, the energy barrier of 1od was significantly lower than that of previously reported azobenzenes. Moreover, we investigated and elucidated the photoisomerization pathway. 1od exhibited high nonlinear absorption, with a nonlinear absorption coefficient (βeff) of 1.31 10−9 m W−1, as determined by Z‐scan measurements. The results indicate that 1od has potential applications in optical limiters, which are used to fabricate protective eyewear and safeguard optical sensors from damage.

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“…The computed values of global descriptors are compared with those in the literature and have proven to be much more efficient. Thus, they can be used for NLO applications [36,37] …”

Section: Resultsmentioning

confidence: 99%

Experimental and Theoretical Investigation of 3‐[(2‐chlorophenyl)diazenyl]pyridine‐2,6‐diamine as Optical Limiter

John,

Benny,

Philip

et al. 2023

ChemistrySelect

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“…[128][129][130][131][132] It is observed that as η and Γ increase, the NLO properties decrease, whereas the increase in μ, ω, and S leads to an increase in the NLO properties. [128,129,133] This review aims to summarize and evaluate the progress made from 1998 to 2022 in the study of second and third-order NLO properties AQ dyes using a variety of techniques, Z-scan, Hyper-Rayleigh scattering (HRS), electric field induced second harmonic generation (EFISHG) and degenerate four-wave mixing technique (DFWM) and density functional theory (DFT). The decomposition temperature (Td) has also been collected because thermal stabilities are crucial for NLO applications.…”

Section: Hyper-rayleigh Scattering (Hrs)mentioning

confidence: 99%

“…Apart from BLA and BOA, other global chemical reactivity descriptors such as chemical potential (μ), chemical hardness (η), hyperhardness (Γ), electrophilicity index (ω), and softness (S) also help in understanding the NLO properties [128–132] . It is observed that as η and Γ increase, the NLO properties decrease, whereas the increase in μ, ω, and S leads to an increase in the NLO properties [128,129,133] …”

Section: Introductionmentioning

confidence: 99%

NLOphoric Anthraquinone Dyes – A Review

Gupta,

Sekar

2024

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This review is about anthraquinone dyes. One of the advantages of organic NLOphores materials is the variety of chromophores explored for a wide range of potential applications in optoelectronics and biology. The second and third harmonic generations, as well as hyper‐Rayleigh scattering (HRS), the Z‐scan technique, degenerate four‐wave mixing (DFWM), and density functional theory (DFT), are all covered in this review. The most active sites for establishing enhanced NLO properties were found to be positions 2 and 6 of the anthraquinone core. The structural characteristics of dyes are used to divide them into subcategories. In each section, structures with a higher NLO response are highlighted. Researchers will benefit from this review when designing and synthesizing NLOphores.

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The Matrix Effect on Nonlinear Optical Responses of Disperse Orange 25: Optical Bistability and Z-Scan

Salmani

Asgari

2022

J Fluoresc

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Positional isomers of heterocyclic azo dyes: Investigation of NLO properties by Z-scan and correlative DFT studies

Cited by 3 publications

References 74 publications

Experimental and Theoretical Investigation of 3‐[(2‐chlorophenyl)diazenyl]pyridine‐2,6‐diamine as Optical Limiter

Experimental and Theoretical Investigation of 3‐[(2‐chlorophenyl)diazenyl]pyridine‐2,6‐diamine as Optical Limiter

NLOphoric Anthraquinone Dyes – A Review

The Matrix Effect on Nonlinear Optical Responses of Disperse Orange 25: Optical Bistability and Z-Scan

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