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Journal articles on the topic 'Spectroscopic sensitizer'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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1

Kumaran, T. Saravana, A. Prakasam, P. M. Anbarasan, et al. "New Phenoxazine-Based Organic Dyes with Various Acceptors for Dye-Sensitized Solar Cells: Synthesis, Characterization, DSSCs Fabrications and DFT Study." Journal of Computational Biophysics and Chemistry 20, no. 05 (2021): 465–76. http://dx.doi.org/10.1142/s2737416521500253.

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As sensitizers, a series of organic dyes containing phenoxazine is synthesized for use in dye-sensitized solar cells (DSSCs). The dyes were characterized using FT-IR, NMR and UV experiments. Quantum chemical calculations were used to gain insight into the structural, electronic and photophysical properties including its as-synthesized sensitizers, as well as to allocate experimental spectroscopic results. It has been observed that increasing the electron-donor potential and the [Formula: see text]-conjugated bridge of the dyes would increase the photovoltaic performance. The obtained two dyes

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2

Singh, Lakshmi K., Tado Karlo, and Arvind Pandey. "Electrochemical Impedance Spectroscopic Study on DSSC Sensitized with Begonia malabarica Lam." Materials Science Forum 771 (October 2013): 133–41. http://dx.doi.org/10.4028/www.scientific.net/msf.771.133.

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Electrochemical Impedance Spectroscopic studies of dye sensitized solar cells fabricated using Begonia malabarica Lam. as sensitizer has been carried out. Various electrochemical parameters such as charge transport resistance at the TiO2/dye/electrolyte interface, recombination resistance, chemical capacitance, transient diffusion coefficient, diffusion length and time constant, were calculated using Diffusion-recombination transmission line model. The evaluation of these parameters provides the underlying charge transport mechanism for the present cell. The reported cell has an efficiency of

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3

Prauzner-Bechcicki, Jakub S., Lukasz Zajac, Piotr Olszowski, et al. "Scanning probe microscopy studies on the adsorption of selected molecular dyes on titania." Beilstein Journal of Nanotechnology 7 (November 9, 2016): 1642–53. http://dx.doi.org/10.3762/bjnano.7.156.

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Titanium dioxide, or titania, sensitized with organic dyes is a very attractive platform for photovoltaic applications. In this context, the knowledge of properties of the titania–sensitizer junction is essential for designing efficient devices. Consequently, studies on the adsorption of organic dyes on titania surfaces and on the influence of the adsorption geometry on the energy level alignment between the substrate and an organic adsorbate are necessary. The method of choice for investigating the local environment of a single dye molecule is high-resolution scanning probe microscopy. Micros

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4

Safie, Nur Ezyanie, Norasikin Ahmad Ludin, Norul Hisham Hamid, et al. "Electron transport studies of dye-Sensitized solar cells based on natural sensitizer extracted from rengas (Gluta spp.) and mengkulang (Heritiera elata) wood." BioResources 12, no. 4 (2017): 9227–43. http://dx.doi.org/10.15376/biores.12.4.9227-9243.

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Dyes extracted from rengas (Gluta spp.) and mengkulang (Heritiera elata) wood were investigated as sensitizers in dye-sensitized solar cells (DSSCs). Three types of sensitizers, including individual sensitizer, mixture sensitizer, and co-sensitizer, exhibited different patterns of absorption properties under UV-Vis spectroscopy. The incident photon-to-current efficiency (IPCE) was analyzed via spectral response to examine the generation of photocurrent. Because mixture sensitized DSSCs obtained broader absorption spectra, they were expected to achieve good light harvesting and hence, enhanced

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5

Di Carlo, Gabriella, Daniela Caschera, Roberta G. Toro, et al. "Spectroscopic and Morphological Studies of Metal-Organic and Metal-Free Dyes onto Titania Films for Dye-Sensitized Solar Cells." International Journal of Photoenergy 2013 (2013): 1–11. http://dx.doi.org/10.1155/2013/582786.

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We have investigated the spectroscopic behavior of three different sensitizers adsorbed onto titania thin films in order to gain information both on the electron transfer process from dye to titania and on the anchorage of the chromophore onto the semiconductor. We have examined by UV-Vis and fluorescence spectroscopy the widely used ruthenium complexcis-di(thiocyanato)bis(2,2′-bipyridyl-4,4′-dicarboxylato)ruthenium(II) (N719), the more recently developed organic molecular 3-(5-(4-(diphenylamino)styryl)thiophen-2-yl)-2-cyanoacrylic acid (D5), and apush-pullzinc phthalocyanine sensitizer (ZnPc)

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6

Işık Büyükekşi, Sebile, Abdurrahman Şengül, Seda Erdönmez, Ahmet Altındal, Efe Baturhan Orman, and Ali Rıza Özkaya. "Spectroscopic, electrochemical and photovoltaic properties of Pt(ii) and Pd(ii) complexes of a chelating 1,10-phenanthroline appended perylene diimide." Dalton Transactions 47, no. 8 (2018): 2549–60. http://dx.doi.org/10.1039/c7dt04713d.

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7

Duvva, Naresh, Suneel Gangada, Raghu Chitta, and Lingamallu Giribabu. "Bis(4′-tert-butylbiphenyl-4-yl)aniline (BBA)-substituted A3B zinc porphyrin as light harvesting material for conversion of light energy to electricity." Journal of Porphyrins and Phthalocyanines 24, no. 10 (2020): 1189–97. http://dx.doi.org/10.1142/s1088424620500327.

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Limited synthetic steps via low-cost starting materials are needed to develop large-scale light-active materials for efficient solar cells. Here, novel bis(4[Formula: see text]-tert-butylbiphenyl-4-yl)aniline (BBA) based A3B zinc porphyrin (GB) is synthesized and applied as a light harvesting/electron injection material in dye-sensitized solar cells. The GB sensitizer was characterized by various spectroscopic techniques and the optimized device shows [Formula: see text] of 10.98 ± 0.37 mA/cm2 and power conversion efficiency (PCE) of 3.34 ± 0.26%. In addition, performance is enhanced up to ∼3.

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8

Bhardwaj, M. K., and S. K. Awasthi. "The effect of dye on conductivity of Polymer (PVC) observed by spectroscopic studies." Sri Lankan Journal of Physics 25, no. 1 (2024): 1–12. https://doi.org/10.4038/sljp.v25i1.8149.

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The conducting behaviour of Pure and Malachite green mixed Polyvinyl Chloride (PVC) samples prepared using the solution cast method in various ratios, was investigated using Ultraviolet (UV)transmittance, UV absorbance, Infrared (IR) transmittance, and X-ray Diffraction (XRD). The results show that UV transmittance decreases with sensitizer concentration in PVC. UV absorbance shows an increasing trend with the degree of sensitization. The formation of a charge transfer complex in a polymer matrix was inferred from these studies. Reduction in electronic bandgap and hence change in conductive be

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9

N, Ramalakshmi, Amuthalakshmi S, Yamuna R, A. Smith Anton, and Arunkumar S. "Indolizine- A Privileged Biological Scaffold." Der Pharma Chemica 13, no. 2 (2021): 10. https://doi.org/10.5281/zenodo.14718468.

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Indolizine derivatives own cherished biological activities and have been studied for their hypoglycemic, antimicrobial, anti-inflammatory& analgesic, anti-tumour activities. Indolizine scaffold has fascinated speculation and continuing interest and has become an important parent system for the development of potent new drug candidates. The conjugated planar electronic structure exhibits strong fluorescence properties which serve as a valuable tool for DNA interaction and spectroscopic sensitizer studies. Thus, the chemistry, synthesis and properties of this merged system and its derivative

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10

Sarrato, João, Ana Lucia Pinto, Gabriela Malta, et al. "New 3-Ethynylaryl Coumarin-Based Dyes for DSSC Applications: Synthesis, Spectroscopic Properties, and Theoretical Calculations." Molecules 26, no. 10 (2021): 2934. http://dx.doi.org/10.3390/molecules26102934.

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A set of 3-ethynylaryl coumarin dyes with mono, bithiophenes and the fused variant, thieno [3,2-b] thiophene, as well as an alkylated benzotriazole unit were prepared and tested for dye-sensitized solar cells (DSSCs). For comparison purposes, the variation of the substitution pattern at the coumarin unit was analyzed with the natural product 6,7-dihydroxycoumarin (Esculetin) as well as 5,7-dihydroxycomarin in the case of the bithiophene dye. Crucial steps for extension of the conjugated system involved Sonogashira reaction yielding highly fluorescent molecules. Spectroscopic characterization s

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11

Urbanska, Krystyna, Bozena Romanowska-Dixon, Zenon Matuszak, Janusz Oszajca, Patrycja Nowak-Sliwinska, and Grazyna Stochel. "Indocyanine green as a prospective sensitizer for photodynamic therapy of melanomas." Acta Biochimica Polonica 49, no. 2 (2002): 387–91. http://dx.doi.org/10.18388/abp.2002_3797.

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Spectroscopic, photochemical and biological properties of indocyanine green (ICG) are presented. Light over 800 nm is effectively absorbed by ICG. This property as well as photochemical behaviour of ICG make it a very suitable dye for photodynamic treatment of melanoma cells. Cytotoxicity of ICG itself and the effect of photodynamic therapy (PDT) were evaluated by following the growth of human (SKMEL 188) and mouse (S91) melanoma cells. The surviving fraction of the cells irradiated (lambda(ex) = 830 nm) vs non-irradiated, treated with the same dose of ICG, is significantly decreased (5- to 10

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12

Mohd Nizar, S. N. A., M. M. Rosli, S. A. Mohamad Samsuri, I. Abdul Razak та S. Arshad. "Studies in the influence of D–π–A pyrenyl chalcone containing methoxy substitution as dye-sensitizer in DSSC". IOP Conference Series: Earth and Environmental Science 1281, № 1 (2023): 012028. http://dx.doi.org/10.1088/1755-1315/1281/1/012028.

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Abstract A pyrene based chalcone (PyMe) has been prepared by Claisen-Schmidt condensation reaction. The proposed structure was proceeded for characterization analysis of Nuclear Magnetic Resonance (NMR), Fourier Transform Infrared Spectroscopic (FTIR) and Ultraviolet-Visible (UV-Vis) studies. The analysis of cyclic voltammetry (CV) performed has determined the appropriated position of HOMO and LUMO energy level for electron injection and dye regeneration in DSSC. The Field-Emission Scanning Electron Microscopy (FESEM) and Energy dispersive X-ray spectroscopy (EDX) study has confirmed the exist

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13

Tran, Lam, Damiano Massella, Lidia Zur, et al. "SiO2-SnO2:Er3+ Glass-Ceramic Monoliths." Applied Sciences 8, no. 8 (2018): 1335. http://dx.doi.org/10.3390/app8081335.

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The development of efficient luminescent systems, such as microcavities, solid-state lasers, integrated optical amplifiers, and optical sensors is the main topic in glass photonics. The building blocks of these systems are glass-ceramics activated by rare-earth ions because they exhibit specific morphologic, structural, and spectroscopic properties. Among various materials that could be used as nanocrystals to be imbedded in a silica matrix, tin dioxide presents some interesting peculiarities, e.g., the presence of tin dioxide nanocrystals allows an increase in both solubility and emission of

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14

Wang, Kun Qi, Wei Ling Wang, Qi Fan Zhu, and Huan Xin Yang. "Photoanode of Photoelectrochemical Biofuel Cell Sensitized by Magnesium Tetraphenylporphyrin." Advanced Materials Research 918 (April 2014): 3–6. http://dx.doi.org/10.4028/www.scientific.net/amr.918.3.

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Magnesium tetraphenylporphyrin (MgTPP) had been synthesized with tetraphenylporphyrin (TPP) and magnesium acetate according to reported paper. The photoanode of photoelectrochemical biofuel cell (PEBFC) was constructed including TiO2 conductive film and photosensitizer Magnesium Tetraphenylporphyrin. The interaction between MgTPP sensitizer and TiO2 was evaluated by X-ray photoelectron spectra, indicating that the MgTPP adsorbed on TiO2 was easier to accept electrons compared with synthesized MgTPP itself. The spectroscopic properties of synthesized MgTPP and MgTPP-sensitization TiO2 in dichlo

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15

Gómez, María L., Carlos M. Previtali, and Hernán A. Montejano. "Two- and Three-Component Visible Light Photoinitiating Systems for Radical Polymerization Based on Onium Salts: An Overview of Mechanistic and Laser Flash Photolysis Studies." International Journal of Photoenergy 2012 (2012): 1–9. http://dx.doi.org/10.1155/2012/260728.

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A review of our work on two- and-three component photoinitiator systems is presented. The emphasis is in on visible light polymerization in aqueous media. The systems discussed comprise a synthetic dye as sensitizer and an onium salt as coinitiator, or a dye-amine-onium salt with the amine as coinitiator and the onium salt as an enhancer of the polymerization efficiency. The effect of the composition of the system on the photopolymerization kinetics was analyzed. To this end, the photophysics and photochemistry of the dye under polymerization conditions was explored by means of stationary and

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16

Bera, Arpan, Md Nur Hasan, Uttam Pal, et al. "Fabrication of nanohybrids toward improving therapeutic potential of a NIR photo-sensitizer: An optical spectroscopic and computational study." Journal of Photochemistry and Photobiology A: Chemistry 424 (February 2022): 113610. http://dx.doi.org/10.1016/j.jphotochem.2021.113610.

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17

Saeki, Akinori, Shin-ichi Ohsaki, Shu Seki, and Seiichi Tagawa. "Electrodeless Determination of Charge Carrier Mobility in Poly(3-hexylthiophene) Films Incorporating Perylenediimide as Photoconductivity Sensitizer and Spectroscopic Probe." Journal of Physical Chemistry C 112, no. 42 (2008): 16643–50. http://dx.doi.org/10.1021/jp8039252.

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18

Chougala, Lakkanna S., Jagadish S. Kadadevarmath, Atulkumar A. Kamble, et al. "Spectroscopic investigations of interaction between TiO2 and newly synthesized phenothiazine derivative-PTA dye and its role as photo-sensitizer." Journal of Luminescence 198 (June 2018): 117–23. http://dx.doi.org/10.1016/j.jlumin.2018.02.025.

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19

Jiménez, José A. "Physical and spectroscopic properties of variable Yb2O3 doped phosphate glasses containing SnO as UV sensitizer for Yb3+ NIR emission." Optical Materials 141 (July 2023): 113984. http://dx.doi.org/10.1016/j.optmat.2023.113984.

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20

Wamhoff, Heinrich, Helmut Koch, Rolf Förster, et al. "Zum Photoabbau von l-(4-Chlorphenyl)-4,4-dimethyl-3-(1H-1,2,4-triazoll- ylmethyl)-pentan-3-ol (Folicur®) [1] / On the Photodegration of l-(4-Chlorophenyl)-4,4-dimethyl-3-(1H-1,2,4-triazol-l-ylmethyl)-pentan-3-ol (Folicur®) [1]." Zeitschrift für Naturforschung B 49, no. 2 (1994): 280–87. http://dx.doi.org/10.1515/znb-1994-0221.

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The photodegradation of the 1,2,4-triazole fungicide Folicur 1 in different organic solvents (benzene, ether, methylene chloride, methanol) and water, in absence and in presence of a singlet oxygen sensitizer (methylene blue) has been studied. The photometabolites formed in organic solvents, have been separated by column chromatography (with isolation of 4 -7 , 13 and 14) and in the case of benzene as solvent as well with the aid of HPLC (isolated: 4 -7 , and five additional products 8-12). Photodegradation of 1 in water leads to the formation of only two photoproducts: 4 and 17 (separated onl

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21

Mehmood, Umer, Ibnelwaleed A. Hussein, and Muhammad Daud. "New 1,3,4-Oxadiazole Based Photosensitizers for Dye Sensitized Solar Cells (DSSCs)." International Journal of Photoenergy 2015 (2015): 1–8. http://dx.doi.org/10.1155/2015/637652.

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1,3,4-Oxadiazole based photosensitizers with biphenyl, naphthalene, anthracene, and triphenylamine as the electron-donating moiety were synthesized for solar cell applications. In these photosensitizers, cyano groups were introduced as the electron acceptor and the anchor group because of their high electron-withdrawing ability and strong bonding to the semiconductor. Oxadiazole isomers were used as theπ-conjugation system, which bridges the donor-acceptor systems. The electrochemical and optical properties of the sensitizers were investigated both in their native form and upon incorporation i

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22

Anbarasan, Ponnusamy Munusamy, Palanivel Senthil Kumar, Kolandan Vasudevan, Raji Govindan, Annamalai Prakasam, and Munusamy Geetha. "Geometrical, electronic structure, nonlinear optical and spectroscopic investigations of 4-(phenylthio)phthalonitrile dye sensitizer for solar cells using quantum chemical calculations." European Journal of Chemistry 2, no. 2 (2011): 206–13. http://dx.doi.org/10.5155/eurjchem.2.2.206-213.269.

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23

Burikov, Sergey, Ekaterina Filippova, Vera Proydakova, et al. "The Influence of Concentrations of Sensitizers and Activators on Luminescence Kinetics Parameters of Up-Conversion Nanocomplexes NaYF4:Yb3+/Tm3+." Photonics 11, no. 3 (2024): 228. http://dx.doi.org/10.3390/photonics11030228.

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For colloids of NaYF4:Yb3+/Tm3+ nanoparticles in DMSO, by the method of time-resolved luminescence spectroscopy with nanosecond pulsed excitation at a wavelength of 975 nm, the photophysical processes that determine the course of kinetic curves have been revealed. It has been found that the luminescence rise time decreases with an increase in the concentration of activators and sensitizers due to the increase in the efficiency of energy transfer from sensitizers to activators. The cross-relaxation of the excited states of activators provides a decrease in the luminescence decay time with an in

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24

Giribabu, Lingamallu, Varun Kumar Singh, Challuri Vijay Kumar, Yarasi Soujanya, Veerannagari Gopal Reddy, and Paidi Yella Reddy. "Organic-Ruthenium(II) Polypyridyl Complex Based Sensitizer for Dye-Sensitized Solar Cell Applications." Advances in OptoElectronics 2011 (July 24, 2011): 1–8. http://dx.doi.org/10.1155/2011/294353.

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A new high molar extinction coefficient organic-ruthenium(II) polypyridyl complex sensitizer (RD-Cou) that contains 2,,6,-tetramethyl-9-thiophene-2-yl-2,3,5,6,6a,11c-hexahydro1H,4H-11oxa-3a-aza-benzoanthracene-10-one as extended -conjugation of ancillary bipyridine ligand, 4,-dicaboxy-2, ,-bipyridine, and a thiocyanate ligand in its molecular structure has been synthesized and completely characterized by CHN, Mass, 1H-NMR, UV-Vis, and fluorescence spectroscopies as well as cyclic voltammetry. The new sensitizer was tested in dye-sensitized solar cells using a durable redox electrolyte and comp

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25

Barzaga, Ransel, Domingo Aníbal García-Hernández, Arturo Manchado, Ilaria Di Sarcina, Alessia Cemmi, and Franco Cataldo. "Sensitized Radiation-Induced Polymerization of Indene with 1,1,2,2-Tetrachloroethane." Polymers 17, no. 11 (2025): 1550. https://doi.org/10.3390/polym17111550.

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Sensitized radiation-induced polymerization of indene monomer was achieved at a dose rate of 3 kGy/h. The sensitizer (1,1,2,2-tetrachloroethane or TCE) leads to higher polyindene yields and faster polymerization kinetics with respect to bulk radiation-induced polymerization of indene. The radiation chemical yield Gp was found to increase with the dose in sensitized polymerization of indene following a power law, while an opposite trend was detected in the absence of the sensitizer. The sensitizer enhances the cationic polymerization mechanism in parallel to the free radical mechanism, as shown

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26

Niedzwiedzki, Dariusz M. "Photophysical properties of N719 and Z907 dyes, benchmark sensitizers for dye-sensitized solar cells, at room and low temperature." Physical Chemistry Chemical Physics 23, no. 10 (2021): 6182–89. http://dx.doi.org/10.1039/d0cp06629j.

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Photophysical properties of N719 and Z907, benchmark Ru-dyes used as sensitizers in dye-sensitized solar cells, were studied by static and time-resolved optical spectroscopy at room temperature and 160 K.

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27

Guo, Huixia, Xiaohua Xi, Renxiang Yan та Xiaoquan Lu. "Theoretical study on the effect of different π-linker on the performance of sensitizer in carbazole-based dyes". Journal of Theoretical and Computational Chemistry 17, № 02 (2018): 1850019. http://dx.doi.org/10.1142/s0219633618500190.

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Derived from diarylamine sensitizer diphenyl-(7-pyridin-4-yl-9H-carbazol-2-yl)-amine (N13), a series of novel D[Formula: see text]A carbazole-based organic dye sensitizers with different [Formula: see text]-linkers were designed for searching more effective sensitizers in dye-sensitized solar cells (DSSCs) design. Optimized geometries, electronic structure, and other parameters, which can evaluate the performance of DSSCs effectively and intuitively, were theoretically calculated by density functional theory (DFT) and time-dependent DFT methods at the M06/6-31G(d,p) level. The results indicate

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28

Son, Vuong, Nguyen Ngoc Ha, Luong Thi Thu Thuy, Tran Quang Thinh, and Mai Anh Tuan. "Synthesis of Cu\(^+\)/bipyridyl Based Complex Towards Dye Sensitized Solar Cell Application." Communications in Physics 26, no. 2 (2016): 165. http://dx.doi.org/10.15625/0868-3166/26/2/8363.

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This study aims to synthesize the Cu+/bipyridyl-based complex using Sonogashira cross coupling. The structure of the ligand and the complex were investigated by nuclear magnetic resonance spectroscopy; by single crystal X-ray diffraction and by UV-VIS absorption spectroscopy. The obtained experimental results were in good agreement with the theoretical calculations. The complex is a potential candidate to be the photo sensitizer in dye-sensitized solar cells.

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29

Gnida, Paweł, Paweł Jarka, Pavel Chulkin, et al. "Impact of TiO2 Nanostructures on Dye-Sensitized Solar Cells Performance." Materials 14, no. 7 (2021): 1633. http://dx.doi.org/10.3390/ma14071633.

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The effect of TiO2 nanostructures such as nanoparticles, nanowires, nanotubes on photoanode properties, and dye-sensitized solar cells photovoltaic parameters were studied. The series of dye-sensitized solar cells based on two dyes, that is, commercially N719 and synthesized 3,7′-bis(2-cyano-1-acrylic acid)-10-ethyl-phenothiazine were tested. Additionally, the devices containing a mixture of this sensitizer and chenodeoxycholic acid as co-adsorbent were fabricated. The amount of adsorbed dye molecules to TiO2 was evaluated. The prepared photoanodes with different TiO2 nanostructures were inves

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Balpınar, Neslihan. "The preparation of ZnO-based dye-sensitized solar cells using Rhus, Linaria and Punica." Emerging Materials Research 11, no. 4 (2022): 1–9. http://dx.doi.org/10.1680/jemmr.22.00073.

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This paper focuses on fabricating ZnO-based dye-sensitized solar cells (DSSCs) utilizing three types of dyes derived from Rhus, Linaria and Punica flowers. The ZnO thin films were prepared on tin-doped indium oxide (ITO) coated glass substrates at 70 °C according to successive ionic layer adsorption and reaction (SILAR) method. Organic sensitizers were extracted from Rhus, Linaria and Punica flowers using ethanol solvent. The fabricated solar cells were characterized by using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), UV-vis spectro

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31

Moll, Bastian, Thomas Tichelkamp, Susann Wegner, Biju Francis, Thomas J. J. Müller, and Christoph Janiak. "Near-infrared (NIR) surface-enhanced Raman spectroscopy (SERS) study of novel functional phenothiazines for potential use in dye sensitized solar cells (DSSC)." RSC Advances 9, no. 64 (2019): 37365–75. http://dx.doi.org/10.1039/c9ra08675g.

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32

Lee, Kee Eun, Mario A. Gomez, Tom Regier, Yongfeng Hu, and George P. Demopoulos. "Further Understanding of the Electronic Interactions between N719 Sensitizer and Anatase TiO2 Films: A Combined X-ray Absorption and X-ray Photoelectron Spectroscopic Study." Journal of Physical Chemistry C 115, no. 13 (2011): 5692–707. http://dx.doi.org/10.1021/jp109869z.

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33

Malashkevich G. E., Kouhar V. V., Ramanenka A. A., et al. "28-21." Optics and Spectroscopy 132, no. 1 (2022): 187. http://dx.doi.org/10.21883/eos.2022.01.53005.28-21.

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Fused yttrium-alumoborate glasses doped with ytterbium, silicon, chromium, and sodium were synthesized. The influence of the matrix on the "spectroscopic behavior" of chromium ions and the efficiency of their sensitization of Yb3+ luminescence was established by spectral-luminescence and EPR-studies. It was found that (1) chromium in alkali-free glasses is mainly in the oxidation degree Cr(III) with an appreciable admixture of Cr(IV) and Cr(V), (2) the partial replacement of Al2O3 or B2O3 by SiO2 and Y2O3 by Yb2O3 affects to a different extent the relative concentration of optical centers of c

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34

Малашкевич, Г. Е., В. В. Ковгар, А. А. Романенко та ін. "Спектрально-люминесцентные свойства стекол системы (Y-=SUB=-1-x-=/SUB=-Yb-=SUB=-x-=/SUB=-)-=SUB=-2-=/SUB=-О-=SUB=-3-=/SUB=--Al-=SUB=-2-=/SUB=-O-=SUB=-3-=/SUB=--В-=SUB=-2-=/SUB=-О-=SUB=-3-=/SUB=--SiO-=SUB=-2-=/SUB=- + Cr-=SUB=-2-=/SUB=-О-=SUB=-3-=/SUB=-+Na-=SUB=-2-=/SUB=-О". Оптика и спектроскопия 130, № 1 (2022): 199. http://dx.doi.org/10.21883/os.2022.01.51908.28-21.

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Fused yttrium-alumoborate glasses doped with ytterbium, silicon, chromium, and sodium were synthesized. The influence of the matrix on the "spectroscopic behavior" of chromium ions and the efficiency of their sensitization of Yb3+ luminescence was established by spectral-luminescence and EPR-studies. It was found that (1) chromium in alkali-free glasses is mainly in the oxidation degree Cr(III) with an appreciable admixture of Cr(IV) and Cr(V), (2) the partial replacement of Al2O3 or B2O3 by SiO2 and Y2O3 by Yb2O3 affects to a different extent the relative concentration of optical centers of c

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35

Yoguim, Maurício I., Giulia S. Grandini, Luiza de C. Bertozo, Ignez Caracelli, Valdecir F. Ximenes, and Aguinaldo R. de de Souza. "Studies on the Interaction of Rose Bengal with the Human Serum Albumin Protein under Spectroscopic and Docking Simulations Aspects in the Characterization of Binding Sites." Chemosensors 10, no. 11 (2022): 440. http://dx.doi.org/10.3390/chemosensors10110440.

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Rose Bengal (RB) is a xanthene dye used as a sensitizer to convert triplet (3O2) to singlet oxygen (1O2). This photophysical property makes it one of the most used dyes in photodynamic therapy. Thus, understanding its interaction with biomacromolecules can provide helpful information about its mode of action and application. The protein chosen for this study was human serum albumin (HSA), which has nine binding sites for fatty acids (FA), and at least three sites for interactions of drugs (DS). The complexation of HSA with RB caused a maximum bathochromic shift in its absorption. From this dis

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Abate, Pedro O., Mónica E. García Posse, Mónica M. Vergara, et al. "Spectroscopic, electrochemical and photophysical properties of the novel complex tetracyano-1,10-phenanthroline-5,6-dione-ruthenate(II) and its application as a sensitizer in solar cells." Inorganica Chimica Acta 512 (November 2020): 119903. http://dx.doi.org/10.1016/j.ica.2020.119903.

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Zin, Oo Hlaing, Hnin Thant May, Aye Hnin Aye, Moe Oo Khin, and Moe Khaine Khin. "The Extraction Process and Optical Properties of Spinach and Teak Leaves for Dye Sensitized Solar Cell (DSSC)." Bago University Research Journal Vol.10, No.1, no. 2020 (2020): 247–51. https://doi.org/10.5281/zenodo.3923418.

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Natural dyes of chlorophyll extract from spinach leaf and anthocyanin extract from teak leaf were used as sensitizer to fabricate dye sensitized solar cell (DSSC). They were extracted at different temperatures (30oC,40oC and 50oC) and different solvents such as methanol and ethanol for 30 min, respectively. After extraction, chlorophyll and anthocyanin based solution (dyes) were formed. These dyes were investigated by UV-Vis spectroscopy.

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Kiruba Daniel, S. Cross Guevara, N. Mahalakshmi, J. Sandhiya, Nehru Kasi, and Sivakumar Muthusamy. "Rapid Synthesis of Ag Nanoparticles Using Henna Extract for the Fabrication of Photoabsorption Enhanced Dye Sensitized Solar Cell (PE-DSSC)." Advanced Materials Research 678 (March 2013): 349–60. http://dx.doi.org/10.4028/www.scientific.net/amr.678.349.

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We have synthesized silver nanoparticles using the leaf extract of Henna (Lawsonia inermis). The synthesized silver nanoparticles were characterized using UV – visible spectroscopy, Atomic Force Microscopy and FTIR. Effect of leaf extract concentration, pH and reaction temperature on the formation of silver nanoparticles has been analysed by studying the variations in absorbance and wavelength of SPR of silver nanoparticles. The silver nanoparticle increases photoabsorption due to Localized Surface Plasmon Resonance. In this current study, we have fabricated Photo Enhanced Dye Sensitized Solar

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Virkki, K., E. Tervola, M. Ince, T. Torres, and N. V. Tkachenko. "Comparison of electron injection and recombination on TiO 2 nanoparticles and ZnO nanorods photosensitized by phthalocyanine." Royal Society Open Science 5, no. 7 (2018): 180323. http://dx.doi.org/10.1098/rsos.180323.

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Titanium dioxide (TiO 2 ) and zinc oxide (ZnO) semiconductors have similar band gap positions but TiO 2 performs better as an anode material in dye-sensitized solar cell applications. We compared two electrodes made of TiO 2 nanoparticles and ZnO nanorods sensitized by an aggregation-protected phthalocyanine derivative using ultrafast transient absorption spectroscopy. In agreement with previous studies, the primary electron injection is two times faster on TiO 2 , but contrary to the previous results the charge recombination is slower on ZnO. The latter could be due to morphology differences

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Darwis, Narisa Dewi Maulany, Ankita Nachankar, Yasushi Sasaki, et al. "FGFR Signaling as a Candidate Therapeutic Target for Cancers Resistant to Carbon Ion Radiotherapy." International Journal of Molecular Sciences 20, no. 18 (2019): 4563. http://dx.doi.org/10.3390/ijms20184563.

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Radiotherapy is an essential component of cancer therapy. Carbon ion radiotherapy (CIRT) promises to improve outcomes compared with standard of care in many cancers. Nevertheless, clinicians often observe in-field recurrence after CIRT. This indicates the presence of a subset of cancers that harbor intrinsic resistance to CIRT. Thus, the development of methods to identify and sensitize CIRT-resistant cancers is needed. To address this issue, we analyzed a unique donor-matched pair of clinical specimens: a treatment-naïve tumor, and the tumor that recurred locally after CIRT in the same patient

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Qin, Chu, Dingyu Yang, Peng Gu, Xinghua Zhu, and Hui Sun. "Natural dyes as sensitizers for dye-sensitized solar cells." Functional Materials Letters 11, no. 03 (2018): 1850051. http://dx.doi.org/10.1142/s1793604718500510.

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The dye-sensitized solar cells (DSSCs) have been fabricated by using a series of natural dyes extracted from euonymus japonicus and purple plants. The optical characteristics and chemical structure of dyes were investigated by UV-visible spectroscopy and Fourier infrared spectroscopy. It is found that the absorption of sunlight and bonding performance to TiO2 electrode of dyes had significantly effects on the conversion efficiency of solar cells. The results show the cells using blueberry as sensitizer achieved best conversion efficiency of 0.218%, attributed to its strong absorption and excel

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D.T. Toshpulatov, Kh. Sh. Tashpulatov, G.B. Eshmuradova, A.M. Nasimov, Sh.E. Mirzaev, and Sh.N. Magdiev. "SYNTHESIS AND PHOTOPHYSICAL STUDIES OF FLUORESCENT IRON COMPLEX FOR SENSITIZER APPLICATIONS." RASAYAN Journal of Chemistry 18, no. 02 (2025): 723–27. https://doi.org/10.31788/rjc.2025.1829210.

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Inorganic coordination complexes for dye-sensitized solar cells (DSSC) are cheaper substitutes for silicon-based solar cells and have been actively investigated in the past 3 decades. In this report, Here, a homoleptic iron complex with phenanthroline descendant - 3,4,7,8-tetramethyl-1,10-phenanthroline has been synthesized. Optimal synthesis conditions have been proposed based on the experimental yield. Photophysics of synthesized complexes in various solvents has been explored using UV-vis spectroscopy, FTIR spectroscopy, Raman spectroscopy, steady-state, and time-domain luminescence methods

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Zhang, Chenguang, Shaowen Liu, Xingwei Liu, Fei Deng, Yan Xiong, and Fang-Chang Tsai. "Incorporation of Mn 2+ into CdSe quantum dots by chemical bath co-deposition method for photovoltaic enhancement of quantum dot-sensitized solar cells." Royal Society Open Science 5, no. 3 (2018): 171712. http://dx.doi.org/10.1098/rsos.171712.

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A photoelectric conversion efficiency (PCE) of 4.9% was obtained under 100 mW cm −2 illumination by quantum-dot-sensitized solar cells (QDSSCs) using a CdS/Mn : CdSe sensitizer. CdS quantum dots (QDs) were deposited on a TiO 2 mesoporous oxide film by successive ionic layer absorption and reaction. Mn 2+ doping into CdSe QDs is an innovative and simple method—chemical bath co-deposition, that is, mixing the Mn ion source with CdSe precursor solution for Mn : CdSe QD deposition. Compared with the CdS/CdSe sensitizer without Mn 2+ incorporation, the PCE was increased from 3.4% to 4.9%. The effec

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Branco, Helena, Júlio Oliveira, Catarina Antunes, Lúcio L. Santos, Maria Helena Vasconcelos, and Cristina P. R. Xavier. "Pirfenidone Sensitizes NCI-H460 Non-Small Cell Lung Cancer Cells to Paclitaxel and to a Combination of Paclitaxel with Carboplatin." International Journal of Molecular Sciences 23, no. 7 (2022): 3631. http://dx.doi.org/10.3390/ijms23073631.

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Pirfenidone, an antifibrotic drug, has antitumor potential against different types of cancers. Our work explored whether pirfenidone sensitizes non-small cell lung cancer (NSCLC) cell lines to chemotherapeutic treatments. The cytotoxic effect of paclitaxel in combination with pirfenidone against three NSCLC cell lines (A549, NCI-H322 and NCI-H460) was evaluated using the sulforhodamine B assay. The effects of this combination on cell viability (trypan blue exclusion assay), proliferation (BrdU incorporation assay), cell cycle (flow cytometry following PI staining) and cell death (Annexin V-FIT

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Luo, Yong Ping, Zong Hu Xiao, Shun Jian Xu, Wei Zhong, Huan Wen Wu, and Hui Ou. "Preparation and Performance Characterization of “Turnjujube-Like” CdSe Nanofibers." Advanced Materials Research 971-973 (June 2014): 123–26. http://dx.doi.org/10.4028/www.scientific.net/amr.971-973.123.

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It was reported for the first time that “Turnjujube-like” CdSe nanofibers have been assembled onto TiO2surface by electrochemical method of cyclic voltammetry, using CdSO4•8H2O and SeO2as raw material, can be used as a sensitizer of quantum dot-sensitized solar cell. CdSe morphology, structure characterization and optical properties are characterized by scanning electron microscope (SEM), X-ray diffraction (XRD), and ultraviolt-visible spectroscopy (UV–Vis), respectively. The experimental results show that the prepared “Turnjujube–like” CdSe nanofibers are zinc blende CdSe with cubic crystal s

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Lingamallu, Giribabu, Bessho Takeru, Srinivasu Mareedu, et al. "A new familiy of heteroleptic ruthenium(II) polypyridyl complexes for sensitization of nanocrystalline TiO2 films." Dalton Transactions 40, no. 17 (2011): 4497–504. https://doi.org/10.5281/zenodo.12383.

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Two new heteroleptic ruthenium(II) photosensitizers that contains 2,2′;6,2′′-terpyridine with extended π-conjugation with donor groups, a 4,4′-dicarboxylic acid-2,2′-bipyridine anchoringligand and a thiocyanate ligand have been designed, synthesized and fully characterized by CHN, mass spectrometry, UV-vis and fluorescence spectroscopies and cyclic voltammetry. The new sensitizers have either 3,5-di-<em>tert</em>-butyl phenyl (<strong>m-BL-5</strong>) or triphenylamine (<strong>m-BL-6</strong>) groups, where the

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Deng, Fan, Megan S. Lazorski, and Felix N. Castellano. "Photon upconversion sensitized by a Ru(II)-pyrenyl chromophore." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 373, no. 2044 (2015): 20140322. http://dx.doi.org/10.1098/rsta.2014.0322.

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The near-visible-to-blue singlet fluorescence of anthracene sensitized by a ruthenium chromophore with a long-lived triplet-excited state, [Ru(5-pyrenyl-1,10-phenanthroline) 3 ](PF 6 ) 2 , in acetonitrile was investigated. Low intensity non-coherent green light was used to selectively excite the sensitizer in the presence of micromolar concentrations of anthracene generating anti-Stokes, singlet fluorescence in the latter, even with incident power densities below 500 μW cm −2 . The resultant data are consistent with photon upconversion proceeding from sensitized triplet–triplet annihilation (T

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Zalas, Maciej, Błażej Gierczyk, Hubert Bogacki, and Grzegorz Schroeder. "TheCortinariusFungi Dyes as Sensitizers in Dye-Sensitized Solar Cells." International Journal of Photoenergy 2015 (2015): 1–6. http://dx.doi.org/10.1155/2015/653740.

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The dye-sensitized solar cells have been for the first time prepared usingCortinariusfungi extracts as a source of sensitizing dyes. The seven species ofCortinariusgroup, collected in the East Poland, have been used to obtain crude extracts of natural dyes used as sensitizing solutions to prepare DSSCs working electrodes. Extracts and sensitized electrodes have been well characterized by UV-Vis spectroscopy measurements. The device sensitized byCortinarius sanguineusextract has been found the most active in photon-to-current conversion process with efficiencyη=0.64%, fill factorFF=65.9%, photo

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Gudim, Nikita S., Ekaterina A. Knyazeva, and Oleg A. Rakitin. "5-(9-(p-Tolyl)-2,3,4,4a,9,9a-hexahydro-1H-1,4-methanocarbazol-6-yl)thiophene-2-carbaldehyde." Molbank 2024, no. 1 (2024): M1792. http://dx.doi.org/10.3390/m1792.

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Donor–π spacer–acceptor (D–π–A) dyes are among the most attractive structures for the design of organic dye-sensitized solar cells (DSSCs). Typically, the key intermediates for these sensitizers are D–π compounds containing an aldehyde group to which an anchor acceptor group is attached via the Knoevenagel reaction. In this communication, 5-(9-(p-tolyl)-2,3,4,4a,9,9a-hexahydro-1H-1,4-methanocarbazol-6-yl)thiophene-2-carbaldehyde was prepared via the Suzuki cross-coupling reaction. The structure of the newly synthesized compound was established by means of high-resolution mass spectrometry, 1H

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Soto-Acosta, Samuel, José J. Campos-Gaxiola, Edgar A. Reynoso-Soto, et al. "Synthesis, Crystal Structure, DFT Studies and Optical/Electrochemical Properties of Two Novel Heteroleptic Copper(I) Complexes and Application in DSSC." Crystals 12, no. 9 (2022): 1240. http://dx.doi.org/10.3390/cryst12091240.

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New copper(I) compounds of compositions [Cu(HL)(PPh3)2]·H2O (1) and [Cu(HL)POP]·CH2Cl2 (2), where HL = monoanion of pyridine-2,5-dicarboxylic acid, PPh3 = triphenylphosphine and POP = bis [2-(diphenylphosphine)phenyl]ether), are documented. The complexes were characterized by elemental analysis, spectroscopic techniques (IR, 1H/31P RMN and UV–VIS), cyclic voltammetry, and thermogravimetric analysis. Single-crystals for 1 and 2 enabled X-ray diffraction analysis, revealing distorted tetrahedral geometries for Cu(I) centers embedded in NOP2 environments. The crystal structures are stabilized by

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