Near-infrared (NIR) surface-enhanced Raman spectroscopy (SERS) study of novel functional phenothiazines for potential use in dye sensitized solar cells (DSSC)

Moll, Bastian; Tichelkamp, Thomas; Wegner, Susann; Francis, Biju; Müller, Thomas J. J.; Janiak, Christoph

doi:10.1039/c9ra08675g

Cited by 10 publications

(3 citation statements)

References 77 publications

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“…52 Furthermore, the rough surface was more appropriate to provide larger enhancement compared with °at surfaces. To overcome the bottlenecks in SERS, TERS, 53 SHINERS, 54 ultraviolet SERS 55 and nearinfrared SERS 56 were extensively proposed and applied.…”

Section: Surface-enhanced Raman Spectroscopymentioning

confidence: 99%

Applications of Raman spectroscopy in two-dimensional materials

Yin

Lin

2020

J. Innov. Opt. Health Sci.

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At present, two-dimensional (2D) materials have shown great application potential in numerous fields based on their physical chemical and electronic properties. Raman spectroscopy and derivative techniques are effective tools for characterizing 2D materials. Raman spectroscopy conveys lots of knowledge on 2D materials, including layer number, doping type, strain and interlayer coupling. This review summarized advanced applications of Raman spectroscopy in 2D materials. The challenges and possible applied directions of Raman spectroscopy to 2D materials are discussed in detail.

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Section: Surface-enhanced Raman Spectroscopymentioning

confidence: 99%

Applications of Raman spectroscopy in two-dimensional materials

Yin

Lin

2020

J. Innov. Opt. Health Sci.

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“…A simple one-step condensation of rhodanine and an aldehyde provides access to a large number of derivatives, which usually do not require column chromatography for purification. The thus-obtained structures are well established motifs in different areas of research such as fluorophore design, ion sensing, solar-cell dyes, − and medicinal and biological chemistry. − For example, a number of widely used kinase inhibitors such as SMI-16a , or SMI-4a , with activity against PIM (Provirus Integration site for Moloney leukemia virus) kinases − are based on this structural motif. Despite this great versatility, only the related dicyanorhodanine structure in conjunction with thiophenes , and related solar cell dye structures , were shown to undergo photoisomerization so far.…”

Section: Introductionmentioning

confidence: 99%

Rhodanine-Based Chromophores: Fast Access to Capable Photoswitches and Application in Light-Induced Apoptosis

Köttner,

Wolff,

Mayer

et al. 2024

J. Am. Chem. Soc.

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Molecular photoswitches are highly desirable in all chemistry-related areas of research. They provide effective outside control over geometric and electronic changes at the nanoscale using an easy to apply, waste-free stimulus. However, simple and effective access to such molecular tools is typically not granted, and elaborate syntheses and substitution schemes are needed in order to obtain efficient photoswitching properties. Here we present a series of rhodanine-based photoswitches that can be prepared in one simple synthetic step without requiring elaborate purification. Photoswitching is induced by UV and visible light in both switching directions, and thermal stabilities of the metastable states as well as quantum yields are very high. An additional benefit is the hydrogen-bonding capacity of the rhodanine fragment, which enables applications in supramolecular or medicinal chemistry. We further show that the known rhodanine-based inhibitor SMI-16a is a photoswitchable apoptosis inducer. The biological activity of SMI-16a can effectively be switched ON or OFF by reversible photoisomerization between the inactive E and the active Z isomer. Rhodanine-based photoswitches therefore represent an easy to access and highly valuable molecular toolbox for implementing light responsiveness to the breadth of functional molecular systems.

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“…[3][4][5][6][7][8] Electron-rich heterocycles, such as phenothiazine, are prominent structural motifs used in electroactive materials for batteries, [9][10][11] OLEDs, [12][13][14] and DSSCs. [15][16][17][18][19] They possess low oxidation potentials with fully chemically reversible oneelectron oxidations, low band gaps, and luminescent properties. [20][21][22] In addition to their convenient accessibility, their intrinsic properties are easily fine tunable by synthetic functionalization.…”

Section: Introductionmentioning

confidence: 99%