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Journal articles on the topic 'Molar extinction coefficient'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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1

Alrahili, M. "Beyond Extinction Efficiencies to Molar Extinction Coefficient of Silver Nanoparticles." Russian Journal of Physical Chemistry B 18, no. 1 (2024): 343–56. http://dx.doi.org/10.1134/s1990793124020039.

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2

Himstedt, Rasmus, Dominik Hinrichs, and Dirk Dorfs. "Extinction Coefficient of Plasmonic Nickel Sulfide Nanocrystals and Gold-Nickel Sulfide Core-Shell Nanoparticles." Zeitschrift für Physikalische Chemie 233, no. 1 (2018): 3–14. http://dx.doi.org/10.1515/zpch-2018-1165.

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Abstract In the presented work, the molar extinction coefficient of plasmonic heazlewoodite (Ni3S2) nanoparticles and Au-Ni3S2 core-shell nanoparticles is determined for the first time. The results are compared to analogously determined extinction coefficients of pure Au nanocrystals (NCs), which themselves correlate very well with existing literature on the subject. The measured extinction coefficients at the localized surface plasmon resonance (LSPR) maximum wavelength of nickel sulfide particles are similar to the values of equally sized Au NCs. Therefore, considering the lower cost of the

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3

Schöppler, Friedrich, Christoph Mann, Tilman C. Hain, et al. "Molar Extinction Coefficient of Single-Wall Carbon Nanotubes." Journal of Physical Chemistry C 115, no. 30 (2011): 14682–86. http://dx.doi.org/10.1021/jp205289h.

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4

Cataldo, Franco, Susana Iglesias-Groth, and Arturo Manchado. "Molar extinction coefficient of fullerenes and related hydrogenated derivatives “fulleranes”." Proceedings of the International Astronomical Union 7, S283 (2011): 324–25. http://dx.doi.org/10.1017/s1743921312011246.

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AbstractFullerenes, the carbon molecules with 60 and 70 atoms, were recently detected in a series of planetary nebulae, in protoplanetary nebulae and in other astrophysical objects. The detection and the quantitative determination of these molecules was made possible by the measurement of their reference infrared spectra and the relative molar extinction coefficients and integrated molar absorptivity on laboratory scale. It is expected that also fulleranes the hydrogenated derivatives of C60 and C70 may be present in the same objects where fullerenes were detected. This prompted us to synthesi

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5

Cataldo, Franco, Susana Iglesias-Groth, D. Anibal Garcia-Hernandez, and Arturo Manchado. "Determination of the Integrated Molar Absorptivity and Molar Extinction Coefficient of Hydrogenated Fullerenes." Fullerenes, Nanotubes and Carbon Nanostructures 21, no. 5 (2013): 417–28. http://dx.doi.org/10.1080/1536383x.2011.629756.

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6

Zhong, Ruibo, Ming Yuan, Haiyang Gao, et al. "A subtle calculation method for nanoparticle’s molar extinction coefficient: The gift from discrete protein-nanoparticle system on agarose gel electrophoresis." Functional Materials Letters 09, no. 02 (2016): 1650029. http://dx.doi.org/10.1142/s1793604716500296.

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Discrete biomolecule-nanoparticle (NP) conjugates play paramount roles in nanofabrication, in which the key is to get the precise molar extinction coefficient of NPs. By making best use of the gift from a specific separation phenomenon of agarose gel electrophoresis (GE), amphiphilic polymer coated NP with exact number of bovine serum albumin (BSA) proteins can be extracted and further experimentally employed to precisely calculate the molar extinction coefficient of the NPs. This method could further benefit the evaluation and extraction of any other dual-component NP-containing bio-conjugate

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7

Schaub, Jeffrey M., Quinn A. Best, Cheng Zhao, Richard A. Haack, and Qiaoqiao Ruan. "Molar extinction coefficient estimation of dyes from three biophysical techniques." Biophysical Journal 123, no. 3 (2024): 141a. http://dx.doi.org/10.1016/j.bpj.2023.11.978.

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8

Suranjita, Ghosh, Pal Chaudhury (Mukhopadhyay) S., and R. Das H. "Extraction and spectrophotometric determination of palladium(II) and rhodium(III) using bis(indole-3-aldehydo )thiocarbohydrazone as new sensitive and selective complexing agent." Journal of Indian Chemical Society Vol. 76, Sep 1999 (1999): 463–64. https://doi.org/10.5281/zenodo.5852705.

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Department of Chemistry, Department of Geology, Presidency College, Calcutta-700 073, India <em>Manuscript received 28 November 1997, revised 23 April 1999, accepted 9 May 1999</em> Bis(indole-3-aldehydo)thiocarbohydrazone (BIATCH) reacts with Pd<sup>II</sup> and Rh<sup>II</sup> forming coloured complexes (λ<sub>max</sub>, 385 nm in ethyl acetate). In the presence of moderate excess of diverse ions both Pd and Rh can be determined with BIATCH. The molar extinction coefficient and Sandell's sensitivity values for both complexes have been evaluated.

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9

Abkhalimov, Evgeny, Vadim Ershov, and Boris Ershov. "Determination of the Concentration of Silver Atoms in Hydrosol Nanoparticles." Nanomaterials 12, no. 18 (2022): 3091. http://dx.doi.org/10.3390/nano12183091.

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In this work, we propose a new method for determining the concentration of silver atoms in hydrosols of nanoparticles (NPs) stabilized with various capping agents. The proposed method is based on the determination of IBT absorption in the UV region (a broad band with a weakly pronounced shoulder at ~250 nm). To determine the extinction coefficient at 250 nm, we synthesized silver nanoparticles with average sizes of 5, 10, and 25 nm, respectively. The prepared nanoparticles were characterized by TEM, HRTEM, electron diffraction, XRD, DLS, and UV–Vis spectroscopy. It has been shown that the abso

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10

Dai, Quanqin, Yingnan Wang, Xinbi Li, et al. "Size-Dependent Composition and Molar Extinction Coefficient of PbSe Semiconductor Nanocrystals." ACS Nano 3, no. 6 (2009): 1518–24. http://dx.doi.org/10.1021/nn9001616.

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11

S., Palchaudhury (Mukhopadhyay). "N,N' -Dipyridylthiourea as a new sensitive reagent for the extraction and spectrophotometric determination of osmium(VI) and iridium(III)." Journal of Indian Chemical Society Vol. 80, Aug 2003 (2003): 797–99. https://doi.org/10.5281/zenodo.5837081.

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Geology Department, Presidency College, Kolkata-700 073, India <em>E-mail</em> : s_palchaudhuri@vsnl.net <em>Manuscript received 8 July 2002, revised 31 December 2002, accepted 4 March 2003</em> N,N'-Dipyridylthiourea (DPyT) reacts with Os<sup>VI</sup> and Ir<sup>Ill</sup> forming coloured extractable complexes <em>(</em>λ<em><sub>max</sub></em> 355 nm in chloroform : ethanol for Os complex and 335 nm for Ir complex in the same extractant). In presence of moderate excess of diverse ions both Os and Ir can be determined with DPyT in ppm level. The molar extinction coefficient and San

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12

Khashper, Bella L., and Darya S. Yunusova. "APPLICATION OF OPTIMIZATION METHOD IN MULTIDIMENSIONAL SPACE TO THE PROBLEM OF DETERMINING FULLERENE CONCENTRATION IN FULLERENE-CONTAINING MIXTURE." Oil and Gas Business, no. 5 (November 8, 2024): 246–69. http://dx.doi.org/10.17122/ogbus-2024-5-246-269.

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The work proposes a method for the quantitative processing of experimental data from ultraviolet spectroscopy of substituted fullerene mixtures, taking into account errors in the experimental data. This task can be written as a system of Vierordt equations (a system of linear equations). The coefficients of the system are the extinction coefficients of individual substituted fullerenes, which are difficult to measure accurately. Therefore, the mathematical model of the problem contains significant errors that affect the reliability and stability of the solution. To minimize the influence of er

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13

Zhang, Jingwen, Chao Wang, Lei Zhang, et al. "Novel nonplanar and rigid fluorophores with intensive emission in water and the application in two-photon imaging of live cells." RSC Advances 6, no. 75 (2016): 71624–27. http://dx.doi.org/10.1039/c6ra13226j.

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Novel nonplanar and rigid fluorophores have been synthesized, by fusing a twisted heterocycle onto a naphthalimide skeleton, and exhibited excellent higher quantum yield value (Φ = 0.60–0.66) and molar extinction coefficient in water.

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14

Su, Mei-Ju, Jin-Hua Huang, Li-Peng Zhang, et al. "Small molecular thienoquinoidal dyes as electron donors for solution processable organic photovoltaic cells." RSC Advances 5, no. 94 (2015): 76666–69. http://dx.doi.org/10.1039/c5ra15956c.

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Two small molecular quinoidal thiophene dyes, featuring low molecular weight, high molar extinction coefficient, and narrow band-gap, have been synthesized as donors for organic photovoltaic cells, giving a best power conversion efficiency of 5.12%.

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15

Wang, Peng, Cédric Klein, Robin Humphry-Baker, Shaik M. Zakeeruddin, and Michael Grätzel. "A High Molar Extinction Coefficient Sensitizer for Stable Dye-Sensitized Solar Cells." Journal of the American Chemical Society 127, no. 3 (2005): 808–9. http://dx.doi.org/10.1021/ja0436190.

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16

Keszei, E., and J. P. Jay-Gerin. "Molar extinction coefficient of the incompletely relaxed excess electron in liquid water." International Journal of Radiation Applications and Instrumentation. Part C. Radiation Physics and Chemistry 33, no. 3 (1989): 183–84. http://dx.doi.org/10.1016/1359-0197(89)90136-7.

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17

Choi, Hyunbong, Ines Raabe, Duckhyun Kim, et al. "High Molar Extinction Coefficient Organic Sensitizers for Efficient Dye-Sensitized Solar Cells." Chemistry - A European Journal 16, no. 4 (2010): 1193–201. http://dx.doi.org/10.1002/chem.200902197.

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18

Shahroosvand, Hashem, Saeid Abaspour, Babak Pashaei, and Babak Nemati Bideh. "On how ancillary ligand substitution affects the charge carrier dynamics in dye-sensitized solar cells." RSC Advances 8, no. 35 (2018): 19465–69. http://dx.doi.org/10.1039/c8ra02968g.

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With respect to N3, S3 which contained a phenTz (1,10-phenanthroline 5-tetrazole) ancillary ligand showed outstanding improvements in molar extinction coefficient (ε) as well as increases in power conversion efficiency (PCE) and incident photon-to-electron conversion efficiency (IPCE).

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19

Cataldo, Franco, Susana Iglesias-Groth, and Arturo Manchado. "On the Molar Extinction Coefficient and Integrated Molar Absorptivity of the Infrared Absorption Spectra of C60and C70Fullerenes." Fullerenes, Nanotubes and Carbon Nanostructures 20, no. 3 (2012): 191–99. http://dx.doi.org/10.1080/1536383x.2010.533313.

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20

Metcalfe, Walter K. "Detecting And Optimizing Fluorescence Signals." Microscopy and Microanalysis 5, S2 (1999): 1352–53. http://dx.doi.org/10.1017/s1431927600020080.

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Classical fluorphores have been widely utilized in biological research, and have been extensively modified to promote particular qualities. Here we review practical methods of optimizing fluorescence signals for microscopy, discuss experimental solutions to common laboratory applications of fluorescent probes, and describe advantages of the sulfonated rhodamines.Fluorescence output of dyes The usefulness of a fluorescent probe depends critically on how bright it is and on its ability to resist photobleaching.The brightness of a dye depends on two factors: first, its efficiency in capturing exc

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21

Aldalbahi, Ali, Govindasami Periyasami, and Abdulaziz Alrehaili. "Synthesis of high molar extinction coefficient push–pull tricyanofuran-based disperse dyes: Biological activity and dyeing performance." New Journal of Chemistry 45, no. 4 (2021): 2208–16. http://dx.doi.org/10.1039/d0nj05510g.

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22

Moreels, Iwan, Karel Lambert, David De Muynck, et al. "Comment on “Size-Dependent Composition and Molar Extinction Coefficient of PbSe Semiconductor Nanocrystals”." ACS Nano 3, no. 8 (2009): 2053. http://dx.doi.org/10.1021/nn9005363.

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23

Jang, Song-Rim, Jun-Ho Yum, Cedric Klein, et al. "High Molar Extinction Coefficient Ruthenium Sensitizers for Thin Film Dye-Sensitized Solar Cells." Journal of Physical Chemistry C 113, no. 5 (2009): 1998–2003. http://dx.doi.org/10.1021/jp8077562.

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24

Hayes, William A., Daniel S. Mills, Rachel F. Neville, Jenna Kiddie, and Lisa M. Collins. "Determination of the molar extinction coefficient for the ferric reducing/antioxidant power assay." Analytical Biochemistry 416, no. 2 (2011): 202–5. http://dx.doi.org/10.1016/j.ab.2011.05.031.

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25

Jiang, Ke-Jian, Jiang-bin Xia, Naruhiko Masaki, Shuji Noda, and Shozo Yanagida. "Efficient sensitization of nanocrystalline TiO2 films with high molar extinction coefficient ruthenium complex." Inorganica Chimica Acta 361, no. 3 (2008): 783–85. http://dx.doi.org/10.1016/j.ica.2007.06.014.

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26

Zhylko, Viachaslau U., and Natalia V. Nekhan. "Determination of the main spectral characteristics and conditions for the extraction of the cationic dye pyronine G with higher carboxylic acids." Butlerov Communications 64, no. 12 (2020): 83–87. http://dx.doi.org/10.37952/roi-jbc-01/20-64-12-83.

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The selection of the suitable cationic dye is one of the key steps in extraction-photometric methods for the quantitative determination of hydrophobic anions, in particular, higher carboxylic acids. No less important is the reasonable selection of the required polar phase pH for extraction systems. It is because higher carboxylic acids are well extracted by non-polar phase in molecular form. It was found that, in contrast to other cationic dyes, pyronine G, which is stable in high alkaline pH values, is well extracted in form of ionic associates with higher carboxylic acids. The optimal compos

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27

Chandrasekharam, Malapaka, Ganugula Rajkumar, Thogiti Suresh, and Paidi Yella Reddy. "Substitution of Ethynyl-Thiophene Chromophores on Ruthenium Sensitizers: Influence on Thermal and Photovoltaic Performance of Dye-Sensitized Solar Cells." Advances in OptoElectronics 2012 (February 6, 2012): 1–10. http://dx.doi.org/10.1155/2012/482074.

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A new high molar extinction coefficient ruthenium(II) bipyridyl complex, “Ru(2,2-bipyridine-4,4′-dicarboxylic acid)(4,4′-bis((3-hexylthiophen-2-yl)ethynyl)-2,2′-bipyridine)(NCS)2 (N(C4H9)4), MC101” was synthesized and fully characterized by 1H-NMR, ESI-MASS, FT-IR, UV-Vis., and fluorescence spectroscopes. The dye showed relatively high molar extinction coefficient of 25.0 × 103 M-1 cm-1 at λ maximum of 544 nm, while the reference C101 has shown 15.8 × 103 M-1cm-1 at λ maximum 528 nm. The monochromatic incident photon-to-collected electron conversion efficiency of 44.1% was obtained for MC101 o

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28

Jay-Gerin, J. P., та C. Ferradini. "Solvatation des électrons en excès dans les solvants polaires: corrélation entre les valeurs de εmax, W1/2 et EAmax". Canadian Journal of Chemistry 68, № 4 (1990): 553–57. http://dx.doi.org/10.1139/v90-084.

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On the basis of data found in the literature, it is shown that a correlation exists between the molar extinction coefficient at the maximum optical absorption of the solvated electron (εmax), its width at half height (W1/2), and the energy corresponding to that maximum (EAmax) Keywords: solvated electrons, polar solvants, optical absorption spectra. [Journal translation]

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29

Wang, Meihui, Xianfeng Wang, Chong Guo, Tao Zhao, and Wenyao Li. "A Feasible Method Applied to One-Bath Process of Wool/Acrylic Blended Fabrics with Novel Heterocyclic Reactive Dyes and Application Properties of Dyed Textiles." Polymers 12, no. 2 (2020): 285. http://dx.doi.org/10.3390/polym12020285.

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Reactive dyes containing cationic groups have great potentiality as novel dyes, which can be applicable to one-bath dyeing of wool/acrylic blended fabrics. In this work, four novel heterocyclic reactive dyes containing cationic groups were designed by using m-aminophenyltrimethylammonium salt or N-(2-aminoethyl) pyridinium chloride salt as cationic groups, N, N-diethyl-1,3-benzenediamine as a coupling component, 2-amino-6-methoxybenzothiazole, 2-aminobenzothiazole or 3-amino-5-nitrobenzoisothiazole as diazo components. These dyes based on benzothiazole derivative chromophores not only showed b

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30

Zhong, Changjian, Jianrong Gao, Yanhong Cui, Ting Li, and Liang Han. "Coumarin-bearing triarylamine sensitizers with high molar extinction coefficient for dye-sensitized solar cells." Journal of Power Sources 273 (January 2015): 831–38. http://dx.doi.org/10.1016/j.jpowsour.2014.09.163.

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31

Booth, Matthew, Andrew P. Brown, Stephen D. Evans, and Kevin Critchley. "Determining the Concentration of CuInS2 Quantum Dots from the Size-Dependent Molar Extinction Coefficient." Chemistry of Materials 24, no. 11 (2012): 2064–70. http://dx.doi.org/10.1021/cm300227b.

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32

Kuang, Daibin, Seigo Ito, Bernard Wenger, et al. "High Molar Extinction Coefficient Heteroleptic Ruthenium Complexes for Thin Film Dye-Sensitized Solar Cells." Journal of the American Chemical Society 128, no. 12 (2006): 4146–54. http://dx.doi.org/10.1021/ja058540p.

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33

GIRIBABU, L., VARUN KUMAR SINGH, M. SRINIVASU, et al. "Synthesis and photoelectrochemical characterization of a high molar extinction coefficient heteroleptic ruthenium(II) complex." Journal of Chemical Sciences 123, no. 4 (2011): 371–78. http://dx.doi.org/10.1007/s12039-011-0096-1.

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34

Makhlouf, M. Th, S. A. El-Shatoury, and R. M. Hassan. "Alginate Polyelectrolyte Ionotropic Gels-XIX. Spectrophotometric detection of Short-lived Intermediates in Alkaline Permanganate Oxidation of Alginate Polysaccharide." High Performance Polymers 4, no. 2 (1992): 89–95. http://dx.doi.org/10.1088/0954-0083/4/2/004.

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Spectrophotometric evidence for the formation of a short-lived Mn(VI) intermediate has been confirmed during the oxidation of alginae polysaccharide by potassium permanganate in alkaline medium at pH> 12. This Mn(VI) intermediate was characterized by a band at a wavelength of 606 nm, an absorption maximum, with a molar extinction coefficient of 1200 + 50 dm3/mol/cm.

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35

González, V., B. Kharisov, and I. Gómez. "Preparation, optical characterization and stability of gold nanoparticles by facile methods." Revista Mexicana de Física 65, no. 6 Nov-Dec (2019): 690. http://dx.doi.org/10.31349/revmexfis.65.690.

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The influence of synthesis method, cycles quantity and sonication time in the gold nanoparticles size and plasmon resonance were analyzed to establish the synthesis with smaller nanoparticle size and higher absorbance. Gold nanoparticles were analyzed by UV-Vis spectrophotometry, dynamic light scattering (DLS) and surface electron microscopy (SEM). The results indicate that the nanoparticles obtained by microwave have bigger size but higher absorption. These nanoparticles were analyzed one year after its synthesis and it was found that the plasmon resonance signal remains almost unchanged. Fin

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36

Denisova, Svetlana A., and Andrey E. Lesnov. "Influence of surfactances on the spectrophotometric characteristics of scandium complexes with eriochromcianine R." Вестник Пермского университета. Серия «Химия» = Bulletin of Perm University. CHEMISTRY 11, no. 3 (2021): 184–92. http://dx.doi.org/10.17072/2223-1838-2021-3-184-192.

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The effect of various types of surfactants on the complexation of scandium ions with eriochromecyanine R. The optimal conditions were determined from the light absorption spectra of the dye and complexes with metal ions without surfactants and in the presence of catamine AB, oxyphos B and syntanol DS-10 at various pH values and surfactant concentrations complexation. The presence of catamine AB causes a bathochromic shift in the maximum of light absorption of the complex, increases the contrast of the photometric reaction and the value of the extinction coefficient. The composition of the comp

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37

Dai, Quanqin, Yingnan Wang, Xinbi Li, et al. "Reply to “Comment on ‘Size-Dependent Composition and Molar Extinction Coefficient of PbSe Semiconductor Nanocrystals’”." ACS Nano 3, no. 8 (2009): 2054. http://dx.doi.org/10.1021/nn900611s.

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38

Lv, Xueju, Feifei Wang, and Yunhui Li. "Studies of an Extremely High Molar Extinction Coefficient Ruthenium Sensitizer in Dye-Sensitized Solar Cells." ACS Applied Materials & Interfaces 2, no. 7 (2010): 1980–86. http://dx.doi.org/10.1021/am100285z.

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39

Yeltik, Aydan, Savas Delikanli, Murat Olutas, Yusuf Kelestemur, Burak Guzelturk, and Hilmi Volkan Demir. "Experimental Determination of the Absorption Cross-Section and Molar Extinction Coefficient of Colloidal CdSe Nanoplatelets." Journal of Physical Chemistry C 119, no. 47 (2015): 26768–75. http://dx.doi.org/10.1021/acs.jpcc.5b09275.

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40

Bäck, Lina. "Electronic spectra and molar extinction coefficient of Cu2+ in mixed alkali–alkaline earth–silica glasses." Physics and Chemistry of Glasses: European Journal of Glass Science and Technology Part B 46, no. 1 (2015): 8–14. http://dx.doi.org/10.13036/17533562.56.1.008.

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41

Huang, Zu-Sheng, Tao Hua, Jing Tian, Lingyun Wang, Herbert Meier, and Derong Cao. "Dithienopyrrolobenzotriazole-based organic dyes with high molar extinction coefficient for efficient dye-sensitized solar cells." Dyes and Pigments 125 (February 2016): 229–40. http://dx.doi.org/10.1016/j.dyepig.2015.10.022.

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42

Begunov, Roman S., and Alexander I. Khlopotinin. "BENZOTRIAZOLE DERIVATIVES OF DIPHENYLAMINE ARE NEW UV RADIATION ABSORBERS." ChemChemTech 68, no. 5 (2025): 112–20. https://doi.org/10.6060/ivkkt.20256805.7200.

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In order to develop UV absorbers with improved extinction coefficients, previously obtained UV absorbers 1-(2-aminophenyl)-1H- and 2-(2-aminophenyl)-2H-benzotriazoles functionalization was carried out through aromatic nucleophilic substitution reaction with nitrohalogenarenes and followed reduction of the obtained nitrodiphenylamines. The conditions for these reactions were selected to synthesize target products with high yield. As a result, 10 new diphenylamine derivatives containing 1H- or 2H-benzotriazole cycles were synthesized. The structures of the obtained multifunctional compounds were

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43

Lavrik, Nikolay L., and Nikolay M. Bazhin. "Self-Association of the Macromolecules of Aldrich Humic Acid in Aqueous Solutions Using Ultraviolet–Visible (UV–Vis) Absorption Spectroscopy." Applied Spectroscopy 73, no. 7 (2019): 810–15. http://dx.doi.org/10.1177/0003702819829809.

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The ultraviolet–visible (UV–Vis) spectra of the aqueous solutions of humic acids (HA) Aldrich were obtained within the concentration range 1–20 mg/L (0.1–2ċ10–6 mol/L). A conclusion on the existence of the self-association (dimer formation) of HA macromolecules is based on the deviation of the concentration dependence of optical density (OD) from the linear one at [HA] > 10 mg/L (>10–6 mol/L). An original, mathematical algorithm is proposed to determine a dimerization constant K and a molar coefficient of dimer absorption [Formula: see text] The value of K was (2.56 ± 0.07) ċ 106 L/mol.

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44

Ugilay, K.Abdurahmanova, and Khairulla.K.Egamberdiev. "ADSORPTION OF IRON TO BIOLOGICALLY ACTIVE SUBSTANCES." Fars Int J Edu Soc Sci Hum 1(1); 2022; 1, no. 1 (2022): 213–19. https://doi.org/10.5281/zenodo.7254334.

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The authors of the article suggest simple and express method of spectrophotometric determination of iron (III) through derivatives of monoammonium salt of glycyrrhizic acid (MASGA). The spectral characteristics of the MASGA-Fe (III) complex - absorption maxima (λmax = 440nm) and the actual molar extinction coefficient (ε = 3,425 × 102) were determined. The optimal conditions for the determination of iron (III) in the range of its concentrations of 2,0–45,0 μg / 25 ml of solution have been established.

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45

EL-NAHASS, M. M., K. F. ABD-EL-RAHMAN, A. A. M. FARAG, and A. A. A. DARWISH. "OPTICAL CHARACTERISATION OF THERMALLY EVAPORATED NICKEL PHTHALOCYANINE THIN FILMS." International Journal of Modern Physics B 18, no. 03 (2004): 421–34. http://dx.doi.org/10.1142/s0217979204023982.

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Optical properties of thermally evaporated nickel phthalocyanine thin films have been characterised using spectrophotometric measurements of transmittance and reflectance in spectral range 200–2100 nm. The refractive index n and the absorption index k were calculated. Some of the optical absorption parameters, namely optical absorption coefficient (α), molar extinction coefficient (ε molar ), oscillator strength (f), electric dipole strength (q2) and absorption half bandwidth (Δλ) of the principal optical transitions have been also evaluated. The analysis of the spectral behaviour of the absor

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46

Abdukakhkharova, M., A. Ismailov, U. Mirzaev, and R. Ismailov. "OBTAINING SOME THERMOD AINING SOME THERMODYNAMIC PARAMETERS CONTAINING ME AINING METACRYLATE AND ALL TE AND ALLYL GROUPS CON YL GROUPS CONTAINING IN COMPOSITION." Technical science and innovation 2019, no. 1 (2019): 44–49. http://dx.doi.org/10.51346/tstu-01.19.1.-77-0011.

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The article discusses the preparation of some thermodynamic parameters characterizing the final product of complex radical polymerization of amino alkyl acrylate derivatives containing both methacrylate and alkyl groups of low molecular weight compounds with electron acceptors - polymerization initiators at temperatures that exclude thermal decomposition of the initiators themselves. The equilibrium constant of the complication reaction and the molar extinction coefficient of the complex were determined by graphically solving the Bеneshe-Hildebrand equation, the heats of complex formation, ent

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Park, Sunwoo, Sangwook Park, Saeyoung Oh, et al. "Enhanced Optical and Thermal Stability of Blue Pyrrole Derivatives for Color Filter in Image Sensors." Applied Sciences 15, no. 2 (2025): 799. https://doi.org/10.3390/app15020799.

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We designed and synthesized two novel blue pyrrole derivatives, 2-(3-cyano-4-(4-(dibutylamino)phenyl)-5-oxo-1,5-dihydro-2H-pyrrol-2-ylidene)malononitrile (BAPCP) and 2-(3-cyano-4-(4-(dihexylamino)phenyl)-5-oxo-1,5-dihydro-2H-pyrrol-2-ylidene)malononitrile (HAPCP), as potential candidates for use in image sensor color filters. The properties of these new compounds were evaluated, focusing on their optical and thermal characteristics in solution and color filter film forms. The molar extinction coefficient values of BAPCP and HAPCP in solution were 6.03 × 104 and 6.91 × 104 L/mol·cm. The molar e

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Chandrasekharam, Malapaka, Ganugula Rajkumar, Chikkam Srinivasa Rao, Thogiti Suresh, Yarasi Soujanya, and Paidi Yella Reddy. "High Molar Extinction Coefficient Ru(II)-Mixed Ligand Polypyridyl Complexes for Dye Sensitized Solar Cell Application." Advances in OptoElectronics 2011 (August 22, 2011): 1–11. http://dx.doi.org/10.1155/2011/432803.

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Two new ruthenium(II) mixed ligand terpyridine complexes, “Ru(Htcterpy)(NCS)(L1) (N(C4H9)4), mLBD1” and Ru(Htcterpy)(NCS)(L2)(N(C4H9)4), mLBD2 were synthesized and fully characterized by UV-Vis, emission, cyclic voltammogram, and other spectroscopic means, and the structures of the compounds are confirmed by 1H-NMR, ESI-MASS, and FT-IR spectroscopes. The influence of the substitution of L1 and L2 on solar-to-electrical energy conversion efficiency (η) of dye-sensitized solar cells (DSSCs) was evaluated relative to reference black dye. The dyes showed molar extinction coefficients of 17600 M−1

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Protasenko, Vladimir, Daniel Bacinello, and Masaru Kuno. "Experimental Determination of the Absorption Cross-Section and Molar Extinction Coefficient of CdSe and CdTe Nanowires†." Journal of Physical Chemistry B 110, no. 50 (2006): 25322–31. http://dx.doi.org/10.1021/jp066034w.

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Giribabu, Lingamallu, Challuri Vijay Kumar, Chikkam Srinivasa Rao, et al. "High molar extinction coefficient amphiphilic ruthenium sensitizers for efficient and stable mesoscopic dye-sensitized solar cells." Energy & Environmental Science 2, no. 7 (2009): 770. http://dx.doi.org/10.1039/b903967h.

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