Second-order nonlinear optical switching with a record-high contrast for a photochromic and thermochromic bistable crystal

Xing, Xiu‐Shuang; Sa, Rongjian; Li, Pei-Xin; Zhang, Ningning; Zhou, Zhóngyuan; Liu, Bin‐Wen; Liu, Jie; Wang, Mingsheng; Guo, Guo‐Cong

doi:10.1039/c7sc01228d

Cited by 104 publications

(58 citation statements)

References 63 publications

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“…The UV/Vis diffuse reflectance spectrum also proved exists of viologen. Between 580 and 1694 nm in the UV/Vis diffuse reflectance spectrum of the photoproduct was significantly enhanced in 1 s, especially, the peak at 686.8 nm as characteristic band of viologen . The red shift of peaks and the characteristic peak of Mo V covered in the UV/Vis diffuse reflectance spectrum, can also demonstrate that viologen does participate in the coloration process and likely tune the photochromic property of polyoxomolybdate.…”

Section: Resultsmentioning

confidence: 87%

Viologen as a Colour Modulator in Photochromism of Polyoxomolybdate–Viologen Hybrids

Yang

et al. 2018

Eur J Inorg Chem

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N,N′-disubstituted-4,4-bipyridinium (viologen) compounds and polyoxometalates (POMs) are two large groups of photochromic materials. In this work, we studied the photochromic property and colour modulation property of hydrogen bonding POMs-viologen hybrids. Taking the reported (H 2 pipz) 3 -[Mo 8 O 27 ] (1: no viologen containing) and (C 14 H 11 N 4 O) 2 [Mo 8 O 26 ](2) as important examples and combining with the two reported POM-viologen crystalline hybrids, we have demon- [a]

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Section: Resultsmentioning

confidence: 87%

Viologen as a Colour Modulator in Photochromism of Polyoxomolybdate–Viologen Hybrids

Yang

et al. 2018

Eur J Inorg Chem

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“…The switchable NLO materials are essential for photonic as well as optoelectronic technologies. One crucial concern for NLO photoswitching, the most studied physical switching strategy, is how to enhance the switching contrast of SHG in crystals because the known values are generally below three times [32].…”

Section: Thermal Optical Switchesmentioning

confidence: 99%

“…Thermoswitching has shown impressive high SHG-switching contrasts, but the fast decay of thermally induced states demands constant heat sources to maintain the specific SHG intensities. Xing and coworkers [32] synthesized a photochromic and thermochromic bistable acentric compound, β-[(MQ )ZnCl3] (MQ+ = N-methyl-4,4′-bipyridinium), which represents the first crystalline compound with both heat-and photoinduced SHG switching behavior and the first example of a thermo-switchable NLO crystal that can maintain its expected second-order NLO intensity without any heat source. The SHG-switching contrast could reach about eight times after laser irradiation or two times after thermal annealing.…”

Section: Thermal Optical Switchesmentioning

confidence: 99%

Nonlinear Optical Responsive Molecular Switches

Doddamani¹,

Waddar²,

Parne³

2021

Nonlinear Optics - From Solitons to Similaritons

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Nonlinear optical (NLO) materials have gained much attention during the last two decades owing to their potentiality in the field of optical data storage, optical information processing, optical switching, and telecommunication. NLO responsive macroscopic devices possess extensive applications in our day to day life. Such devices are considered as assemblies of several macroscopic components designed to achieve specific functions. The extension of this concept to the molecular level forms the basis of molecular devices. In this context, the design of NLO switches, that is, molecules characterized by their ability to alternate between two or more chemical forms displaying contrasts in one of their NLO properties, has motivated many experimental and theoretical works. Thus, this chapter focuses on the rational design of molecular NLO switches based on stimuli and materials with extensive examples reported in the literature. The factors affecting the efficiency of optical switches are discussed. The device fabrication of optical switches and their efficiency based on the optical switch, internal architecture, and substrate materials are described. In the end, applications of switches and future prospectus of designing new molecules with references are suitably discussed.

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“…Powerful organic synthesis has brought about a series of corresponding derivatives, which greatly facilitate the development of CHPMs and stimuli‐responsive materials. Besides photodeformable moieties, photoresponsive pyridinium derivatives have also been broadly used to synthesize CHPMs having captivating structures and photoresponsive properties [20–32] …”

Section: Introductionmentioning

confidence: 99%

Decorating Metal Nitrate with a Coplanar Bipyridine Moiety: A Simple and General Method for Fabricating Photochromic Complexes

Liu

Han

et al. 2021

Chemistry A European J

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As a significant class of photochromic materials, crystalline hybrid photochromic materials (CHPMs) have attracted widespread attention of researchers because of their possibilities for generating other photoresponsive properties and advantages in understanding the underlying relationship between structure and photoresponsive performance. The predesign of suitable ligands plays a major role in generating desirable CHPMs. Hitherto, most CHPMs have been built from photodeformable or photoresponsive tectons. However, the synthesis of these ligands is usually time‐consuming and expensive, and this greatly restricts their large‐scale preparation and practical application. Therefore, it is necessary to explore new families of CHPMs besides the existing CHPMs. Herein, a simple and general method for constructing CHPMs by decorating metal nitrate with a coplanar bipyridine moiety, namely 1,10‐phenanthroline (phen), is reported. The resulting products exhibit photocoloration in response to Xe‐lamp irradiation. The electron transfer (ET) from the coplanar NO3− species (as π‐electron donors, π‐EDs) to coplanar phen moieties (as π‐electron acceptors, π‐EAs) is responsible for the resulting photochromism. The influence of the coordination environment and central metal ion on the photochromism was also studied. This work demonstrates that the introduction of coplanar organic tectons as π‐EAs to metal nitrates as π‐EDs with the collaboration of ET and coordination‐assembly strategies is a simple and general method to manufacture CHPMs.

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Second-order nonlinear optical switching with a record-high contrast for a photochromic and thermochromic bistable crystal

Abstract: The first bistable NLO crystalline compound with both photo- and heat-induced SHG-switching behavior shows a record-high photoinduced SHG-switching contrast.

Cited by 104 publications

References 63 publications

Viologen as a Colour Modulator in Photochromism of Polyoxomolybdate–Viologen Hybrids

Viologen as a Colour Modulator in Photochromism of Polyoxomolybdate–Viologen Hybrids

Nonlinear Optical Responsive Molecular Switches

Decorating Metal Nitrate with a Coplanar Bipyridine Moiety: A Simple and General Method for Fabricating Photochromic Complexes

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