Effect of methoxy or benzyloxy groups bound to an amino-benzene donor unit for various nonlinear optical chromophores as studied by hyper-Rayleigh scattering

Yamada, Toshiki; Aoki, Isao; Miki, Hideki; Yamada, Chikashi; Otomo, Akira

doi:10.1016/j.matchemphys.2013.02.020

Cited by 56 publications

(24 citation statements)

References 22 publications

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“…The role of substituent in ortho ‐position of chromophore donor is clarified here for the first time. The observations concerning the role of the substituents at aniline nitrogen and in the meta ‐position are in agreement with the results of [58] demonstrating the improved NLO characteristics of chromophores with methoxy and benzyloxy groups in meta ‐position of amino benzene fragment and extended π‐conjugated bridge. Thus, among the chromophores of this series Idz and Ifz can be considered the most promising candidates to exhibit high NLO characteristics.…”

Section: Resultssupporting

confidence: 89%

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Composing NLO Chromophore as a Puzzle: Electrochemistry‐based Approach to Design and Effectiveness

et al. 2021

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A series of D‐π‐A, D‐π‐D′‐π‐A, D‐π‐A′‐π‐A nonlinear optical chromophores with vinylene π‐electron bridges or bridges with π‐deficient/π‐excessive heterocyclic moieties along with the corresponding precursors D‐vinylene, D‐π‐D′, D′‐π‐A, D‐π‐A′ and A′‐π‐A are synthesized and studied both experimentally and computationally. The effect of the heterocycle in the π‐electron bridge on the oxidation/reduction potentials and the energy gap (ΔEel) is investigated in detail. The properties of the D‐π‐A′(D′)‐π‐A chromophores are shown to correlate with those of building blocks: the oxidation potential is determined by the D‐vinylene, and the reduction potential is determined by A′(D′)‐π‐A truncated compounds. The contribution of the acceptor to the oxidation potential of chromophores in comparison with those of the precursors was estimated and analyzed in terms of electronic communication between the end groups. A good correlation between the ΔEel and the chromophores’ first hyperpolarizability is revealed.

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Section: Resultssupporting

confidence: 89%

“…This is exactly what is observed in chromophores with a short vinylene bridge ( IVaz and IVgz ), when the acceptor strongly affects E HOMO and complicates the oxidation of the donor. The first hyperpolarizability of such chromophores is not great; [55,57,58] for IVgz β tot =170⋅10 −30 esu [55] …”

Section: Resultsmentioning

confidence: 99%

Composing NLO Chromophore as a Puzzle: Electrochemistry‐based Approach to Design and Effectiveness

et al. 2021

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“…3,[18][19][20][21][22][23][24][25][26][27][28] Some of these materials are even commercial. 3,40,41 For example, the 4-N,N-dimethylamino-4 0 -N 0 -methyl-stilbazolium tosylate (DAST) forms organic crystals with a superior non-linear susceptibility d $ 580 pm V À1 (with d ¼ 0.5c (2) ). 21,25 However, organic-based NLOs display at least three major limitations curbing their use in optical devices: 23,27 (i) difficult to obtain sufficiently largesize crystals, (ii) limited thermal stability above 200 C and (iii) low mechanical strength.…”

Section: Discussionmentioning

confidence: 99%

Metal-free perovskites for non linear optical materials

et al. 2019

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“…3,18-28 Some of these materials are even commercial. 3,40,41 For example, the 4-N,N-dimethylamino-4 0 -N 0 -methyl-stilbazolium tosylate (DAST) forms organic crystals with a superior non-linear susceptibility d ⇠ 580 pm/V (with d = 0.5 (2) ). 21,25 However, organic-based NLOs display at least three major limitations curbing their use in optical devices: 23,27 i ) di cult to obtain su ciently large-size crystals, ii ) limited thermal stability above 200 C and iii ) low mechanical strength.…”

Section: Nlo Response In Metal-free Perovskitesmentioning

confidence: 99%

Metal-Free Perovskites for Non-Linear Optical Materials

Kasel¹,

Deng²,

Mroz³

et al. 2019

Preprint

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<div> <div> <div> <p>We identify the existence of nonlinear optical (NLO) activity in a number of novel ABX3-type metal-free perovskites, where A is a highly tuneable organic cation, B is a NH4 cation and X a halide anion. Through systematic first-principles calculations, we identify important trends to chart the second-harmonic generation of this class of materials. We study three perovskites MDABCO- NH4 I3 , CNDABCO-NH4 I3 and ODABCO-NH4 I3 for use as deep-UV second-harmonic generation materials. We identify the role of the dipole moment imparted by the organic group on the A cation as an important parameter to tune the NLO properties of these materials. We apply this knowledge functionalising the organic group DABCO with the highly polar cyanide CN group, and we demonstrate a significant improvement of the NLO response in this family of materials. These findings can accelerate the application of metal free perovskites as inexpensive, non-toxic, earth-abundant materials for the next generation of optical communication applications. </p> </div> </div> </div>

show abstract

Effect of methoxy or benzyloxy groups bound to an amino-benzene donor unit for various nonlinear optical chromophores as studied by hyper-Rayleigh scattering

Cited by 56 publications

References 22 publications

Composing NLO Chromophore as a Puzzle: Electrochemistry‐based Approach to Design and Effectiveness

Composing NLO Chromophore as a Puzzle: Electrochemistry‐based Approach to Design and Effectiveness

Metal-free perovskites for non linear optical materials

Metal-Free Perovskites for Non-Linear Optical Materials

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