To see the other types of publications on this topic, follow the link: Photophysical Dynamics.

Journal articles on the topic 'Photophysical Dynamics'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Photophysical Dynamics.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Tam, Teck Lip Dexter, Ting Ting Lin, and Steven Lukman. "Understanding the Excited State Photophysics of Pyrrolopyrrole-Dione Isomers and Derivatives Using Time-Dependence Density Functional Theory." Journal of Molecular and Engineering Materials 05, no. 03 (2017): 1750009. http://dx.doi.org/10.1142/s2251237317500095.

Full text
Abstract:
The ability to understand and predict excited state photophysics is vital for the development of photo- and electroluminescence materials, as well as light harvesting materials and photodynamic therapy. Herein, we demonstrate that single determinant time-dependent density functional theory can be computationally cost-effective and has the ability to explain both experimental singlet and triplet dynamics of pyrrolo[3,4-[Formula: see text]]pyrrole-1,4-dione and pyrrolo[3,2-b]pyrrole-2,5-dione isomers with intriguing photophysical properties. We also used the methodology to predict the photophysi
APA, Harvard, Vancouver, ISO, and other styles
2

Zanoni, Kassio P. S., Akitaka Ito, Malte Grüner, Neyde Y. Murakami Iha, and Andrea S. S. de Camargo. "Photophysical dynamics of the efficient emission and photosensitization of [Ir(pqi)2(NN)]+complexes." Dalton Transactions 47, no. 4 (2018): 1179–88. http://dx.doi.org/10.1039/c7dt03930a.

Full text
Abstract:
Rational photophysical investigation through experimental and theoretical analyses reveals the photophysical dynamics of the highly-emissive [Ir(pqi)<sub>2</sub>(NN)]<sup>+</sup>complex series, with remarkable emission quantum yields and efficient generation of singlet oxygen.
APA, Harvard, Vancouver, ISO, and other styles
3

Sanders, Samuel N., Elango Kumarasamy, Kealan J. Fallon, Matthew Y. Sfeir, and Luis M. Campos. "Singlet fission in a hexacene dimer: energetics dictate dynamics." Chemical Science 11, no. 4 (2020): 1079–84. http://dx.doi.org/10.1039/c9sc05066c.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Guldi, Dirk Michael, Fabrizia Negri, and Rik R. Tykwinski. "(Invited) Excited State Dynamics of Odd [n]Cumulenes." ECS Meeting Abstracts MA2025-01, no. 53 (2025): 2628. https://doi.org/10.1149/ma2025-01532628mtgabs.

Full text
Abstract:
Over the past decades, carbon allotropes have been extensively studied and applied to various technological applications due to their unique electronic and optical properties. Contemporary research has focused on quasi-1D, 2D, and 3D materials. On the other hand, the synthesis and isolation of carbyne as the 1D sp-hybridized carbon nanostructure remains elusive. Significant effort has been directed toward synthesis and study of carbon atomic wires (CAWs) as finite analogues of carbyne. The properties of CAWs composed of alkyne building blocks (oligoynes and polyynes) have provided glimpses of
APA, Harvard, Vancouver, ISO, and other styles
5

Eng, Julien, Stuart Thompson, Heather Goodwin, Dan Credgington, and Thomas James Penfold. "Competition between the heavy atom effect and vibronic coupling in donor–bridge–acceptor organometallics." Physical Chemistry Chemical Physics 22, no. 8 (2020): 4659–67. http://dx.doi.org/10.1039/c9cp06999b.

Full text
Abstract:
The excited state properties and intersystem crossing dynamics of a series of donor–bridge–acceptor carbene metal-amides based upon the coinage metals Cu, Ag, Au, are investigated using quantum dynamics simulations and supported by photophysical characterisation.
APA, Harvard, Vancouver, ISO, and other styles
6

Singh, Ajay K., A. C. Bhasikuttan, Dipak K. Palit, and Jai P. Mittal. "Excited-State Dynamics and Photophysical Properties ofpara-Aminobenzophenone." Journal of Physical Chemistry A 104, no. 30 (2000): 7002–9. http://dx.doi.org/10.1021/jp9936188.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Ghosh, Rajib, and Biswajit Manna. "Comparative photophysics and ultrafast dynamics of dimethylaminochalcone and a structurally rigid derivative: experimental identification of TICT coordinate." Physical Chemistry Chemical Physics 19, no. 34 (2017): 23078–84. http://dx.doi.org/10.1039/c7cp03461j.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Ma, Xiao, Dany Doughan, Maha Sharif, and Elham Ghadiri. "Ultrafast Microscopy and Ultrafast Image Analysis to Visualize Photoexcited Dynamics in Perovskites." ECS Meeting Abstracts MA2025-01, no. 16 (2025): 1195. https://doi.org/10.1149/ma2025-01161195mtgabs.

Full text
Abstract:
Ultrafast pump-probe microscopy has been utilized as a promising new ultrafast approach. Transient absorption microscopy enables the visualization and localization of the photochemical and photophysical processes in complex systems. Ultrafast diffuse reflectance spectroscopy is of great value for in-situ time-resolved analysis of complex photophysical processes in opaque or highly absorbing materials and devices. We integrated pump-probe transient absorption microscopy (fs-DR-TAM) with ultrafast diffuse-reflectance spectroscopy. We showed that the technique allows the in-situ localization and
APA, Harvard, Vancouver, ISO, and other styles
9

Böhnke, Hendrik, Katharina Röttger, Rebecca A. Ingle, et al. "Efficient intersystem crossing in 2-aminopurine riboside probed by femtosecond time-resolved transient vibrational absorption spectroscopy." Physical Chemistry Chemical Physics 20, no. 30 (2018): 20033–42. http://dx.doi.org/10.1039/c8cp02664e.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Koo, Sangho, Yeong Hun Kim, Oliver Flender, Mirko Scholz, Kawon Oum та Thomas Lenzer. "Photoinduced Dynamics of 13,13′-Diphenylpropyl-β-carotene". Molecules 28, № 8 (2023): 3505. http://dx.doi.org/10.3390/molecules28083505.

Full text
Abstract:
Carotenoids are ubiquitous pigment systems in nature which are relevant to a range of processes, such as photosynthesis, but the detailed influence of substitutions at the polyene backbone on their photophysics is still underexplored. Here, we present a detailed experimental and theoretical investigation of the carotenoid 13,13′-diphenylpropyl-β-carotene using ultrafast transient absorption spectroscopy and steady-state absorption experiments in n-hexane and n-hexadecane, complemented by DFT/TDDFT calculations. In spite of their bulkiness and their potential capability to “fold back” onto the
APA, Harvard, Vancouver, ISO, and other styles
11

Kim, Siin, Doo-Sik Ahn, Mina Ahn, Kyung-Ryang Wee, Jungkweon Choi, and Hyotcherl Ihee. "Charge transfer induced by electronic state mixing in a symmetric X–Y–X-type multi-chromophore system." Physical Chemistry Chemical Physics 22, no. 48 (2020): 28440–47. http://dx.doi.org/10.1039/d0cp05132b.

Full text
APA, Harvard, Vancouver, ISO, and other styles
12

Harada, Takaaki, Stephen F. Lincoln, and Tak W. Kee. "Excited-state dynamics of the medicinal pigment curcumin in a hydrogel." Physical Chemistry Chemical Physics 18, no. 40 (2016): 28125–33. http://dx.doi.org/10.1039/c6cp05648b.

Full text
Abstract:
Curcumin is a yellow polyphenol with multiple medicinal effects. We show that excited-state intramolecular hydrogen atom transfer and solvent reorganisation are major photophysical events for curcumin in the PAAC18 hydrogel.
APA, Harvard, Vancouver, ISO, and other styles
13

Coppens, François, Johannes von Vangerow, Manuel Barranco, et al. "Desorption dynamics of RbHe exciplexes off He nanodroplets induced by spin-relaxation." Physical Chemistry Chemical Physics 20, no. 14 (2018): 9309–20. http://dx.doi.org/10.1039/c8cp00482j.

Full text
Abstract:
Doped He nanodroplets are ideal model systems to study elementary photophysical processes in hetero-nanostructures. Here we study the formation of free RbHe exciplexes from laser-excited Rb-doped He nanodroplets.
APA, Harvard, Vancouver, ISO, and other styles
14

Mandal, Sadananda, Lijo George, and Nikolai V. Tkachenko. "Charge transfer dynamics in CsPbBr3 perovskite quantum dots–anthraquinone/fullerene (C60) hybrids." Nanoscale 11, no. 3 (2019): 862–69. http://dx.doi.org/10.1039/c8nr08445a.

Full text
Abstract:
An advantage of colloidal quantum dots, particularly perovskite quantum dots (PQDs), as photoactive components is that they easily form complexes with functional organic molecules, which results in hybrids with enriched photophysical properties.
APA, Harvard, Vancouver, ISO, and other styles
15

Ortín-Fernández, Javier, Jesús González-Vázquez, Lara Martínez-Fernández, and Inés Corral. "Molecular Identification of the Transient Species Mediating the Deactivation Dynamics of Solvated Guanosine and Deazaguanosine." Molecules 27, no. 3 (2022): 989. http://dx.doi.org/10.3390/molecules27030989.

Full text
Abstract:
Small structural alterations of the purine/pyrimidine core have been related to important photophysical changes, such as the loss of photostability. Similarly to canonical nucleobases, solute-solvent interactions can lead to a change in the excited state lifetimes and/or to the interplay of different states in the photophysics of these modified nucleobases. To shed light on both effects, we here report a complete picture of the absorption spectra and excited state deactivation of deoxyguanosine and its closely related derivative, deoxydeazaguanosine, in water and methanol through the mapping o
APA, Harvard, Vancouver, ISO, and other styles
16

Fauvell, Thomas J., Zhengxu Cai, Matthew S. Kirschner, et al. "Effects of Intra- and Interchain Interactions on Exciton Dynamics of PTB7 Revealed by Model Oligomers." Molecules 25, no. 10 (2020): 2441. http://dx.doi.org/10.3390/molecules25102441.

Full text
Abstract:
Recent studies have shown that molecular aggregation structures in precursor solutions of organic photovoltaic (OPV) polymers have substantial influence on polymer film morphology, exciton and charge carrier transport dynamics, and hence, the resultant device performance. To distinguish photophysical impacts due to increasing π-conjugation from chain lengthening and π–π stacking from single/multi chain aggregation in solution and film, we used oligomers of a well-studied charge transfer polymer PTB7 with different lengths as models to reveal intrinsic photophysical properties of a conjugated s
APA, Harvard, Vancouver, ISO, and other styles
17

Losantos, Raul, Andreea Pasc, and Antonio Monari. "Don’t help them to bury the light. The interplay between intersystem crossing and hydrogen transfer in photoexcited curcumin revealed by surface-hopping dynamics." Physical Chemistry Chemical Physics 23, no. 43 (2021): 24757–64. http://dx.doi.org/10.1039/d1cp03617c.

Full text
Abstract:
Curcumin is a natural compound extracted from turmeric (Curcuma longa), which has shown remarkable anti-inflammatory, antibacterial, and possibly anticancer properties; its photophysical properties are explored via non-adiabatic molecular dynamics.
APA, Harvard, Vancouver, ISO, and other styles
18

Yu-Sheng, DOU, LI Wei, YUAN Shuai, et al. "Dynamics Simulation of Photophysical Deactivation Pathway for Stacked Thymines." Acta Physico-Chimica Sinica 27, no. 11 (2011): 2559–64. http://dx.doi.org/10.3866/pku.whxb20111115.

Full text
APA, Harvard, Vancouver, ISO, and other styles
19

Kopylova, T. N., V. V. Gruzinskii, K. M. Degtyarenko, A. N. Kitris, and E. N. Tel'minov. "Generation dynamics and photophysical processes in some organic compounds." Journal of Applied Spectroscopy 49, no. 4 (1988): 1009–11. http://dx.doi.org/10.1007/bf00657217.

Full text
APA, Harvard, Vancouver, ISO, and other styles
20

Xu, Wei-Long, Jingli Hu, Qiyan Yang, Yuebin Lian, Min Zheng, and Yannan Zhang. "Micro-space sublimation perylene microcrystals and its photophysical dynamics." Optical Materials 148 (February 2024): 114744. http://dx.doi.org/10.1016/j.optmat.2023.114744.

Full text
APA, Harvard, Vancouver, ISO, and other styles
21

Martin, Joshua P., Natalie R. Fetto, and Matthew J. Tucker. "Comparison of biological chromophores: photophysical properties of cyanophenylalanine derivatives." Physical Chemistry Chemical Physics 18, no. 30 (2016): 20750–57. http://dx.doi.org/10.1039/c6cp04154j.

Full text
Abstract:
Within this work, the family of cyanophenylalanine spectroscopic reporters is extended by showing the ortho and meta derivatives have intrinsic photophysical properties that are useful for studies of protein structure and dynamics.
APA, Harvard, Vancouver, ISO, and other styles
22

Gavvala, Krishna, Raj Kumar Koninti, Abhigyan Sengupta, and Partha Hazra. "Excited state proton transfer dynamics of an eminent anticancer drug, ellipticine, in octyl glucoside micelle." Phys. Chem. Chem. Phys. 16, no. 28 (2014): 14953–60. http://dx.doi.org/10.1039/c4cp01783h.

Full text
Abstract:
Prototropical and photophysical properties of an anticancer drug, ellipticine, are explored inside the octyl-β-d-glucoside micelles using steady state and time-resolved fluorescence spectroscopic techniques.
APA, Harvard, Vancouver, ISO, and other styles
23

Rollins, Geoffrey C., Jae Yen Shin, Carlos Bustamante, and Steve Pressé. "Stochastic approach to the molecular counting problem in superresolution microscopy." Proceedings of the National Academy of Sciences 112, no. 2 (2014): E110—E118. http://dx.doi.org/10.1073/pnas.1408071112.

Full text
Abstract:
Superresolution imaging methods—now widely used to characterize biological structures below the diffraction limit—are poised to reveal in quantitative detail the stoichiometry of protein complexes in living cells. In practice, the photophysical properties of the fluorophores used as tags in superresolution methods have posed a severe theoretical challenge toward achieving this goal. Here we develop a stochastic approach to enumerate fluorophores in a diffraction-limited area measured by superresolution microscopy. The method is a generalization of aggregated Markov methods developed in the ion
APA, Harvard, Vancouver, ISO, and other styles
24

Nyakuchena, James, Xiaoyi Zhang, and Jier Huang. "Synchrotron based transient x-ray absorption spectroscopy for emerging solid-state energy materials." Chemical Physics Reviews 4, no. 2 (2023): 021303. http://dx.doi.org/10.1063/5.0133227.

Full text
Abstract:
The rational design of cutting-edge materials for an efficient solar energy conversion process is a challenging task, which demands a fundamental understanding of the mechanisms operative during the photoinduced physical and chemical reactions. In response to these issues, progress in the field has steered attention toward the use of time-resolved spectroscopic techniques to resolve the multiple intermediate species involved in these photoinduced reactions. Thanks to the advent of pump–probe technique, which leads to the development of various time-resolved spectroscopic methods, significant p
APA, Harvard, Vancouver, ISO, and other styles
25

Wang, Suxiao, Alina Thorn, and Gareth Redmond. "Photophysical Probing of Dye Microenvironment, Diffusion Dynamics, and Energy Transfer." Journal of Physical Chemistry C 122, no. 12 (2018): 6900–6911. http://dx.doi.org/10.1021/acs.jpcc.7b11166.

Full text
APA, Harvard, Vancouver, ISO, and other styles
26

Kim, Taeyeon, Juwon Oh, Hua-Wei Jiang, Takayuki Tanaka, Atsuhiro Osuka та Dongho Kim. "Exciton coupling dynamics in syn- and anti-type β–β linked Zn(ii) porphyrin linear arrays". Physical Chemistry Chemical Physics 18, № 33 (2016): 23105–10. http://dx.doi.org/10.1039/c6cp04269d.

Full text
Abstract:
The photophysical properties of molecular arrays are strongly dependent on a variety of structural factors: the constituent chromophores, dihedral angle, linkage length, linkage position, the center-to-center distance between chromophores, and the linker itself.
APA, Harvard, Vancouver, ISO, and other styles
27

Deria, Pravas, and Sreehari Surendran Rajasree. "Triplet Dynamics in Porphyrin-Based Metal–Organic Frameworks." ECS Meeting Abstracts MA2025-01, no. 17 (2025): 1274. https://doi.org/10.1149/ma2025-01171274mtgabs.

Full text
Abstract:
Heterogeneous optoelectronic materials with utilities including efficient photocatalysis require exquisite assembly of the chromophore. Chromophore assembly in MOF can manifest unique yet modular photophysics stemming from structure-dependent exciton dynamics that cannot be achieved in solution-dissolved single-molecular systems. These involve the formation of various low-energy excitonic states including the polar/CT state which serves as the gateway for a plethora of unique optoelectronic processes including much-needed control over the triplet population and its dynamics. For various utilit
APA, Harvard, Vancouver, ISO, and other styles
28

Bäppler, F., M. Zimmer, F. Dietrich та ін. "Photophysical dynamics of a binuclear Cu(i)-emitter on the fs to μs timescale, in solid phase and in solution". Physical Chemistry Chemical Physics 19, № 43 (2017): 29438–48. http://dx.doi.org/10.1039/c7cp05791a.

Full text
Abstract:
Photophysical analyses by applying different fs and ns time-resolved transient absorption and reflectivity spectroscopic methods to investigate fundamental processes in binuclear Cu(i) containing complexes.
APA, Harvard, Vancouver, ISO, and other styles
29

Yang, Qingqing, Xitong Li, Hao Tang, et al. "Ultrafast spectroscopic investigation of the effect of solvent additives on charge photogeneration and recombination dynamics in non-fullerene organic photovoltaic blends." Journal of Materials Chemistry C 8, no. 20 (2020): 6724–33. http://dx.doi.org/10.1039/d0tc00773k.

Full text
APA, Harvard, Vancouver, ISO, and other styles
30

Gupta, Santosh K., P. S. Ghosh, C. Reghukumar, N. Pathak, and R. M. Kadam. "Experimental and theoretical approach to account for green luminescence from Gd2Zr2O7 pyrochlore: exploring the site occupancy and origin of host-dopant energy transfer in Gd2Zr2O7:Eu3+." RSC Advances 6, no. 50 (2016): 44908–20. http://dx.doi.org/10.1039/c6ra05113h.

Full text
Abstract:
Origin of green emission in undoped Gd<sub>2</sub>Zr<sub>2</sub>O<sub>7</sub> and photophysical characteristics such as local site and energy transfer dynamics of Gd<sub>2</sub>Zr<sub>2</sub>O<sub>7</sub>:Eu<sup>3+</sup> is investigated using PL and DFT calculations.
APA, Harvard, Vancouver, ISO, and other styles
31

Krystkowiak, E., R. A. Bachorz, and A. Maciejewski. "Hydrogen-bonded 4H-1-benzopyrane-4-thione–water complexes properties in the S2 excited state: the mechanism and dynamics of deactivation." Physical Chemistry Chemical Physics 18, no. 1 (2016): 492–502. http://dx.doi.org/10.1039/c5cp05427c.

Full text
APA, Harvard, Vancouver, ISO, and other styles
32

Niedzwiedzki, Dariusz M., Mojgan Kouhnavard, Yifan Diao, Julio M. D'Arcy, and Pratim Biswas. "Spectroscopic investigations of electron and hole dynamics in MAPbBr3 perovskite film and carrier extraction to PEDOT hole transport layer." Physical Chemistry Chemical Physics 23, no. 23 (2021): 13011–22. http://dx.doi.org/10.1039/d1cp00658d.

Full text
Abstract:
Characterization of photophysical properties of MAPbBr<sub>3</sub> perovskite film with application of various static and time-resolved spectroscopies and evaluation of hole extraction process in the FTO/RVPP-PEDOT/MAPbBr<sub>3</sub> architecture.
APA, Harvard, Vancouver, ISO, and other styles
33

Miao, Quan, Erping Sun, and Yan Xu. "Optical Dynamics of Picosecond Pulse Trains in Aluminum and Zinc Tetracarboxy-Phthalocyanines." Symmetry 16, no. 10 (2024): 1337. http://dx.doi.org/10.3390/sym16101337.

Full text
Abstract:
The nonlinear properties and photophysical dynamics of aluminum and zinc tetracarboxy-phthalocyanines (AlPc and ZnPc) were studied using pulse trains of a 532 nm wavelength, which contain 25 subpulses with a 100 ps width and 13 ns spacing. Considering its interaction with long-duration pulses, the energy structure of phthalocyanine could be substituted by a five-level pattern. The nonlinear transmissions of pulse trains in AlPc and ZnPc were simulated by means of equations about the population rate coupled with the paraxial field equation of two-dimensional space. The well-known Crank–Nicholso
APA, Harvard, Vancouver, ISO, and other styles
34

Sumsalee, Patthira, Laura Abella, Thierry Roisnel, et al. "Axial and helical thermally activated delayed fluorescence bicarbazole emitters: opposite modulation of circularly polarized luminescence through intramolecular charge-transfer dynamics." Journal of Materials Chemistry C 9, no. 35 (2021): 11905–14. http://dx.doi.org/10.1039/d1tc03019a.

Full text
Abstract:
The design of novel chiral donor–acceptor emitters based on C2-symmetric bicarbazoles is reported together with their photophysical and CPL properties, both displaying an interesting modulation as a function of the solvent polarity.
APA, Harvard, Vancouver, ISO, and other styles
35

Bräutigam, Maximilian, Maria Wächtler, Sven Rau, Jürgen Popp, and Benjamin Dietzek. "Photophysical Dynamics of a Ruthenium Polypyridine Dye Controlled by Solvent pH." Journal of Physical Chemistry C 116, no. 1 (2011): 1274–81. http://dx.doi.org/10.1021/jp209103m.

Full text
APA, Harvard, Vancouver, ISO, and other styles
36

LaFemina, John P., Donald R. Carter, and Michael B. Bass. "Photophysical properties, intermolecular interactions, and molecular dynamics of poly(ethylene terephthalate)." Journal of Physical Chemistry 96, no. 6 (1992): 2767–72. http://dx.doi.org/10.1021/j100185a067.

Full text
APA, Harvard, Vancouver, ISO, and other styles
37

Saxena, Rishabh, Ayush Kumar, Nakul Jain, Naresh K. Kumawat, K. L. Narasimhan, and Dinesh Kabra. "Photophysical Model for Non-Exponential Relaxation Dynamics in Hybrid Perovskite Semiconductors." Journal of Physical Chemistry C 122, no. 2 (2018): 1119–24. http://dx.doi.org/10.1021/acs.jpcc.7b11503.

Full text
APA, Harvard, Vancouver, ISO, and other styles
38

Wilson, William L., and T. W. Weidman. "Photophysical Dynamics of the [sgrave]-Delocalized Network Alkylpolysilynes: (R-Si)n." Molecular Crystals and Liquid Crystals 194, no. 1 (1991): 85–91. http://dx.doi.org/10.1080/00268949108041153.

Full text
APA, Harvard, Vancouver, ISO, and other styles
39

Cimino, Rita, Emanuela Gatto, Marta De Zotti, et al. "Peptide-bridged bis-porphyrin compounds: A photophysical and molecular dynamics study." Journal of Photochemistry and Photobiology 16 (August 2023): 100191. http://dx.doi.org/10.1016/j.jpap.2023.100191.

Full text
APA, Harvard, Vancouver, ISO, and other styles
40

Bhowmik, Rintu, Abhishek Panwar, Gobinda Bag, and Mithun Roy. "Exploring photophysical, photochemical, and photobiological dynamics of binuclear transition metal complexes." Coordination Chemistry Reviews 537 (August 2025): 216689. https://doi.org/10.1016/j.ccr.2025.216689.

Full text
APA, Harvard, Vancouver, ISO, and other styles
41

Wang, Dihao, Xiankun Li, Sheng Zhang, Lijuan Wang, Xiaojing Yang, and Dongping Zhong. "Revealing the origin of multiphasic dynamic behaviors in cyanobacteriochrome." Proceedings of the National Academy of Sciences 117, no. 33 (2020): 19731–36. http://dx.doi.org/10.1073/pnas.2001114117.

Full text
Abstract:
Cyanobacteriochromes are photoreceptors in cyanobacteria that exhibit a wide spectral coverage and unique photophysical properties from the photoinduced isomerization of a linear tetrapyrrole chromophore. Here, we integrate femtosecond-resolved fluorescence and transient-absorption methods and unambiguously showed the significant solvation dynamics occurring at the active site from a few to hundreds of picoseconds. These motions of local water molecules and polar side chains are continuously convoluted with the isomerization reaction, leading to a nonequilibrium processes with continuous activ
APA, Harvard, Vancouver, ISO, and other styles
42

Renno, Giacomo, Francesca Cardano, Giorgio Volpi, Claudia Barolo, Guido Viscardi, and Andrea Fin. "Imidazo[1,5-a]pyridine-Based Fluorescent Probes: A Photophysical Investigation in Liposome Models." Molecules 27, no. 12 (2022): 3856. http://dx.doi.org/10.3390/molecules27123856.

Full text
Abstract:
Imidazo[1,5-a]pyridine is a stable scaffold, widely used for the development of emissive compounds in many application fields (e.g., optoelectronics, coordination chemistry, sensors, chemical biology). Their compact shape along with remarkable photophysical properties make them suitable candidates as cell membrane probes. The study of the membrane dynamics, hydration, and fluidity is of importance to monitor the cellular health and to explore crucial biochemical pathways. In this context, five imidazo[1,5-a]pyridine-based fluorophores were synthesized according to a one-pot cyclization between
APA, Harvard, Vancouver, ISO, and other styles
43

Wang, Li-Li, Su-Hong Peng, Hui Wang, Liang-Nian Ji, and Hai-Yang Liu. "Photophysical properties of free-base and manganese(iii) N-confused porphyrins." Physical Chemistry Chemical Physics 20, no. 30 (2018): 20141–48. http://dx.doi.org/10.1039/c8cp02223b.

Full text
APA, Harvard, Vancouver, ISO, and other styles
44

Knötig, Konstantin Moritz, Domenic Gust, Thomas Lenzer, and Kawon Oum. "Excited-State Dynamics of Carbazole and tert-Butyl-Carbazole in Organic Solvents." Photochem 4, no. 2 (2024): 163–78. http://dx.doi.org/10.3390/photochem4020010.

Full text
Abstract:
Carbazole-based molecular units are ubiquitous in organic optoelectronic materials; however, the excited-state relaxation of these compounds is still underexplored. Here, we provide a detailed investigation of carbazole (Cz) and 3,6-di-tert-butylcarbazole (t-Bu-Cz) in organic solvents using femtosecond and nanosecond UV–Vis–NIR transient absorption spectroscopy, as well as time-resolved fluorescence experiments upon photoexcitation in the deep-UV range. The initially prepared Sx singlet state has a (sub-)picosecond lifetime and decays to the S1 state by internal conversion (IC). The S1 state e
APA, Harvard, Vancouver, ISO, and other styles
45

Sun, Kun, Tianle Zheng, Renjun Guo, et al. "Deciphering the Interplay of Structure and Charge Carrier Dynamics in Reduced-Dimensional Perovskites." ECS Meeting Abstracts MA2024-01, no. 13 (2024): 1095. http://dx.doi.org/10.1149/ma2024-01131095mtgabs.

Full text
Abstract:
Reduced-dimensional perovskites (RDPs) have advanced the development of perovskite solar cells (PSCs) due to their tunable energy landscape, structure, and orientation. Thus, we aim for an increase in the understanding of structure-photophysical properties of Dion-Jacobson (DJ) and Ruddlesden-Popper (RP) RDPs with different dimensionalities. Our findings reveal that RP RDPs with lower dimensionality exhibits a dominant n=2 phase, preferential out-of-plane orientation, and longer charge carrier lifetime compared with DJ RDPs, as evidenced by X-ray scattering technique and transient absorption s
APA, Harvard, Vancouver, ISO, and other styles
46

Fresch, Elisa, and Elisabetta Collini. "The Role of H-Bonds in the Excited-State Properties of Multichromophoric Systems: Static and Dynamic Aspects." Molecules 28, no. 8 (2023): 3553. http://dx.doi.org/10.3390/molecules28083553.

Full text
Abstract:
Given their importance, hydrogen bonds (H-bonds) have been the subject of intense investigation since their discovery. Indeed, H-bonds play a fundamental role in determining the structure, the electronic properties, and the dynamics of complex systems, including biologically relevant materials such as DNA and proteins. While H-bonds have been largely investigated for systems in their electronic ground state, fewer studies have focused on how the presence of H-bonds could affect the static and dynamic properties of electronic excited states. This review presents an overview of the more relevant
APA, Harvard, Vancouver, ISO, and other styles
47

Khairutdinov, Rafail F., and James K. Hurst. "Photophysical Deactivation Dynamics of Excited Porphyrin Molecules Adsorbed onto Dihexadecyl Phosphate Vesicles." Journal of Physical Chemistry B 103, no. 18 (1999): 3682–86. http://dx.doi.org/10.1021/jp984701i.

Full text
APA, Harvard, Vancouver, ISO, and other styles
48

NORDIO, PIER, and ANTONINO POLIMENO. "Charge transfer dynamics in photophysical systems: a case of saddle point avoidance." Molecular Physics 88, no. 2 (1996): 315–24. http://dx.doi.org/10.1080/00268979609482419.

Full text
APA, Harvard, Vancouver, ISO, and other styles
49

Yao, Yuhang, Hao-Yan Yin, Yingying Ning, et al. "Strong Fluorescent Lanthanide Salen Complexes: Photophysical Properties, Excited-State Dynamics, and Bioimaging." Inorganic Chemistry 58, no. 3 (2018): 1806–14. http://dx.doi.org/10.1021/acs.inorgchem.8b02376.

Full text
APA, Harvard, Vancouver, ISO, and other styles
50

Xu, Wei-Long, Meng-Si Niu, Xiao-Yu Yang, et al. "Spatially Resolved Photophysical Dynamics in Perovskite Microplates Fabricated Using an Antisolvent Treatment." Journal of Physical Chemistry C 121, no. 47 (2017): 26250–55. http://dx.doi.org/10.1021/acs.jpcc.7b09844.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!