Results 171 to 180 of about 6,902 (225)

Merocyanine organic solar cells

Journal of Applied Physics, 1978
Recently, we reported on the development of a new thin-film organic solar cell with an AM1 sunlight efficiency of about 0.7% for large area devices (∼1 cm2). This relatively high-efficiency MIS-Schottky barrier-type cell was based on merocyanine type photosensitizing dyes.
Amal K. Ghosh, Tom Feng
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Photocontraction of Liquid Spiropyran-Merocyanine Films

Science, 1984
Amorphous films of a photochromic spiropyran containing a mesogenic group melt, when exposed to heat together with irradiation, to yield a red fluid. This fluid contains aggregates of merocyanine molecules and exhibits marked contraction under light illumination.
I, Cabrera, F, Shvartsman, O, Veinberg, V, Krongauz   +3 more
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Merocyanine-paclitaxel conjugates for photothermal induced chemotherapy

Journal of Materials Chemistry B, 2021
Merocyanine-paclitaxel conjugates could form stable nanoparticles, which indicate the enhanced chemotherapy upon irradiation because of the photothermal effect.
Yingjie Liu, Xiaohua Zheng, Junli Zhou, Zhigang Xie   +3 more
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Soluble and stable alternating main-chain merocyanine copolymers through quantitative spiropyran–merocyanine conversion

Polym. Chem., 2014
A combined experimental and theoretical study on the synthesis and solution isomerization behavior of main chain copolymers with multiple spiropyran incorporation is presented. A series of alternating copolymers P(SP-alt-Cx) of spiropyran (SP) and flexible linkers (Cx, x = 6,8,10) is synthesized by Suzuki polycondensation (SPC).
Komber, Hartmut, Müllers, Stefan, Lombeck, Florian, Held, Alexander, Walter, Michael, Sommer, Michael   +5 more
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Protein damage by photoproducts of merocyanine 540

Free Radical Biology and Medicine, 1992
Exposure of certain photoactive dyes to light prior to their use in biological systems (preactivation) has been shown to result in formation of long-lived cytotoxic photoproducts. The cytotoxic species responsible for the biological activity of preactivated merocyanine 540 (pMC540) appears to be a hydroperoxide generated by oxidation of ground-state ...
S, Pervaiz, A, Harriman, K S, Gulliya
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Merocyanine dyes: self-assembled monolayers

Journal of Materials Chemistry, 2002
4-{2-[N-(10-Thiodecyl)quinolinium-4-yl]vinyl}phenolate self-assembles on gold with a contact area of 0.35 ± 0.03 nm2 molecule−1, monolayer thickness of 1.64 ± 0.07 nm, and dielectric permittivity components of er ≈ 2.8 and ei ≈ 0.6 at 632.8 nm, which are reduced to ca. 2.0 and 0 respectively when exposed to an acidic medium.
Geoffrey J. Ashwell, Gary A. N. Paxton, Anne J. Whittam, Wayne D. Tyrrel, Martial Berry, Dejian Zhou   +5 more
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Merocyanine–spiropyran relaxation processes

The European Physical Journal D, 2018
In the paper mechanisms of merocyanine–spiropyran transformation were investigated. It was shown that in dark conditions for such transformation it is necessary to overcome the potential barrier with height of ~0.6 eV. A barrierless transformation into the spiropyran molecule is possible due to the rotation of the phenyl moiety of the merocyanine ...
Olha Kovalenko, Yuriy Lopatkin, Petro Kondratenko, Dmitro Belous   +3 more
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Theoretical study of spiropyran–merocyanine thermal isomerization

Chemical Physics Letters, 2004
Quantum mechanical computations at DFT level were carried out on the processes involved in the thermal reaction SP¡ME, where SP is the nitro-substituted spirobenzopyran (1',3'-dihydro-1',3',3'-trimethyl-6-nitro-spiro[2H-1-benzopyran-2,2'- [2H]indole]) in the closed form and ME is the corresponding open form.
Grazia Cottone, Rosina Noto, Gianfranco La Manna   +2 more
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Spectroscopic Studies on Brooker's Merocyanine

Journal of the American Chemical Society, 1998
The origin of the multiple absorption bands of Brooker's merocyanine, 1-(4-aza-4-methylphenyl)-2-trans-(4-oxyphenyl)ethene, found in the visible region of the spectrum in solvents such as chloroform and tetrahydrofuran, has been explored experimentally using 1H and 13C NMR spectroscopy and theoretically using molecular orbital methods.
John O. Morley, Richard M. Morley, Ann L. Fitton   +2 more
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Merocyanines: Synthesis and Application

2008
The rapid progress of information technology continues to stimulate the exploration of innovative materials and architectures for digital processing. Merocyanine dyes appear to be potential candidates for the realization of future data-elaboration, -storage, and -communication devices.
Valerii Z. Shirinian, Alexey A. Shimkin
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