Literatura académica sobre el tema "Singlet exciton fission"
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Artículos de revistas sobre el tema "Singlet exciton fission"
Neef, Alexander, Samuel Beaulieu, Sebastian Hammer, Shuo Dong, Julian Maklar, Tommaso Pincelli, R. Patrick Xian et al. "Orbital-resolved observation of singlet fission". Nature 616, n.º 7956 (12 de abril de 2023): 275–79. http://dx.doi.org/10.1038/s41586-023-05814-1.
Texto completoStern, Hannah L., Andrew J. Musser, Simon Gelinas, Patrick Parkinson, Laura M. Herz, Matthew J. Bruzek, John Anthony, Richard H. Friend y Brian J. Walker. "Identification of a triplet pair intermediate in singlet exciton fission in solution". Proceedings of the National Academy of Sciences 112, n.º 25 (9 de junio de 2015): 7656–61. http://dx.doi.org/10.1073/pnas.1503471112.
Texto completoUchida, Kazuyuki, Takashi Kubo, Daiki Yamanaka, Akihiro Furube, Hiroyuki Matsuzaki, Ritsuki Nishii, Yusuke Sakagami, Aizitiaili Abulikemu y Kenji Kamada. "Synthesis, crystal structure, and photophysical properties of 2,9-disubstituted peropyrene derivatives". Canadian Journal of Chemistry 95, n.º 4 (abril de 2017): 432–44. http://dx.doi.org/10.1139/cjc-2016-0569.
Texto completoDuan, Hong-Guang, Ajay Jha, Xin Li, Vandana Tiwari, Hanyang Ye, Pabitra K. Nayak, Xiao-Lei Zhu et al. "Intermolecular vibrations mediate ultrafast singlet fission". Science Advances 6, n.º 38 (septiembre de 2020): eabb0052. http://dx.doi.org/10.1126/sciadv.abb0052.
Texto completoLee, Jiye, Priya Jadhav, Philip D. Reusswig, Shane R. Yost, Nicholas J. Thompson, Daniel N. Congreve, Eric Hontz, Troy Van Voorhis y Marc A. Baldo. "Singlet Exciton Fission Photovoltaics". Accounts of Chemical Research 46, n.º 6 (23 de abril de 2013): 1300–1311. http://dx.doi.org/10.1021/ar300288e.
Texto completoSeiler, Hélène, Marcin Krynski, Daniela Zahn, Sebastian Hammer, Yoav William Windsor, Thomas Vasileiadis, Jens Pflaum, Ralph Ernstorfer, Mariana Rossi y Heinrich Schwoerer. "Nuclear dynamics of singlet exciton fission in pentacene single crystals". Science Advances 7, n.º 26 (junio de 2021): eabg0869. http://dx.doi.org/10.1126/sciadv.abg0869.
Texto completoBaldacchino, Alexander J., Miles I. Collins, Michael P. Nielsen, Timothy W. Schmidt, Dane R. McCamey y Murad J. Y. Tayebjee. "Singlet fission photovoltaics: Progress and promising pathways". Chemical Physics Reviews 3, n.º 2 (junio de 2022): 021304. http://dx.doi.org/10.1063/5.0080250.
Texto completoWalker, Brian J., Andrew J. Musser, David Beljonne y Richard H. Friend. "Singlet exciton fission in solution". Nature Chemistry 5, n.º 12 (17 de noviembre de 2013): 1019–24. http://dx.doi.org/10.1038/nchem.1801.
Texto completoSnamina, Mateusz y Piotr Petelenz. "Dopant-Catalyzed Singlet Exciton Fission". ChemPhysChem 18, n.º 1 (2 de diciembre de 2016): 149–55. http://dx.doi.org/10.1002/cphc.201600885.
Texto completoLlansola-Portoles, M. J., K. Redeckas, S. Streckaité, C. Ilioaia, A. A. Pascal, A. Telfer, M. Vengris, L. Valkunas y B. Robert. "Lycopene crystalloids exhibit singlet exciton fission in tomatoes". Physical Chemistry Chemical Physics 20, n.º 13 (2018): 8640–46. http://dx.doi.org/10.1039/c7cp08460a.
Texto completoTesis sobre el tema "Singlet exciton fission"
Musser, Andrew. "Singlet exciton fission in unconventional systems". Thesis, University of Cambridge, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.648614.
Texto completoThompson, Nicholas John. "Singlet exciton fission : applications to solar energy harvesting". Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/89959.
Texto completoCataloged from PDF version of thesis.
Includes bibliographical references (pages 141-147).
Singlet exciton fission transforms a single molecular excited state into two excited states of half the energy. When used in solar cells it can double the photocurrent from high energy photons increasing the maximum theoretical power efficiency to greater than 40%. The steady state singlet fission rate can be perturbed under an external magnetic field. I utilize this effect to monitor the yield of singlet fission within operating solar cells. Singlet fission approaches unity efficiency in the organic semiconductor pentacene for layers more than 5 nm thick. Using organic solar cells as a model system for extracting photocurrent from singlet fission, I exceed the convention limit of 1 electron per photon, realizing 1.26 electrons per incident photon. One device architecture proposed for high power efficiency singlet fission solar cells coats a conventional inorganic semiconducting solar with a singlet fission molecule. This design requires energy transfer from the non-emissive triplet exciton to the semiconducting material, a process which has not been demonstrated. I prove that colloidal nanocrystals accept triplet excitons from the singlet fission molecule tetracene. This enables future devices where the combine singlet fission material and nanocrystal system energy transfer triplet excitons produced by singlet fission to a silicon solar cell.
by Nicholas J. Thompson.
Ph. D.
Lukman, Steven. "Singlet exciton fission in acene dimer and diradicaloid molecules". Thesis, University of Cambridge, 2017. https://www.repository.cam.ac.uk/handle/1810/267735.
Texto completoJadhav, Priyadarshani. "Singlet exciton fission, a multi-exciton generation process, in organic semiconductor solar cells". Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/75635.
Texto completoCataloged from PDF version of thesis.
Includes bibliographical references (p. 107-115).
Organic semiconductor photovoltaics hold the promise of cheap production and low manufacturing setup costs. The highest efficiency seen in research labs, ~10% today, is still too low for production. In this work we explore implementations of a multiple exciton generation process, singlet exciton fission, to work around the Shockley-Queisser limit, according to which, all single junctions cells have a theoretical efficiency limit of 33.7%. This is the first implementation of a singlet fission photovoltaic. We measured a singlet fission efficiency of 72% at room temperature. We showed that singlet fission can be implemented in bulk heterojunction photovoltaics, which is an important result since some of the highest efficiency organic photovoltaics in the last 5 years have been bulk heterojunction structures. Secondly, we showed that the magnetic field effect can be used as a probe to investigate triplet dissociation in singlet fission devices. Thirdly, we implemented singlet fission photovoltaics, using the singlet fission material pentacene as donor and low bandgap infrared-absorptive lead chalcogenide quantum dots as acceptors. Singlet fission can enhance the efficiency of organic photovoltaics only if the fission material is paired with an absorptive low-energy-gap material. We find that pentacene triplet excitons dissociate at the pentacene/quantum dot heterojunctions with an internal quantum efficiency of 35%. Lastly, we investigate a series of materials to find a better acceptor in singlet fission photovoltaics using the methods and some results from the previous two investigations. We investigate device structures that pair pentacene and 6,13 diphenyl-pentacene as singlet fission donors with C60 , perylene diimides, PbS quantum dots and PbSe quantum dots as acceptors.
by Priyadarshani Jadhav.
Ph.D.
COSTANTINI, ROBERTO. "Exciton Dynamics in Molecular Heterojunctions". Doctoral thesis, Università degli Studi di Trieste, 2020. http://hdl.handle.net/11368/2967981.
Texto completoIn recent years, the need for a more sustainable economic development contributed to the increasing interest in renewable energy sources. With encouraging trends on power conversion efficiencies and manufacturing costs, photovoltaics is expected to be the workhorse for the production of green energy in the future. Silicon is currently the dominant photovoltaic technology but, in the past decade, novel solutions based on organic semiconductors became attractive for their potential of overcoming the Shockley-Queisser limit and offering unmatched efficiencies by exploiting singlet fission. The latter is an exciton multiplication process in which, for a certain class of materials, a singlet exciton splits into two triplet excitons, thus potentially doubling the charge carriers. Significant work is still necessary to fully benefit of singlet fission in photovoltaics; in particular, a higher degree of control over exciton transport and dissociation mechanisms at hetero-organic interfaces is required for efficiently harvesting triplet excitons. To the aim of better understanding such processes, at the ANCHOR-SUNDYN endstation of the ALOISA beamline at Elettra we developed an experimental setup for time-resolved X-ray spectroscopies, in which the exciton dynamics in organic films can be characterized by X-ray photoemission and absorption spectroscopies with a 100 ps resolution. Here, we can combine time-resolved measurements with standard X-ray and UV spectroscopies for a more detailed analysis of the samples. We apply this approach to donor/acceptor interfaces, the prototypical architectures of organic photovoltaic devices; we investigate triplet excited states in pentacene by means of time-resolved X-ray absorption, which displays a pump-induced feature with a 0.3±0.2 ns lifetime below the LUMO resonance, that we associated to molecules in the triplet state. On the picosecond time scale, measurements performed at the FLASH free-electron laser reveal a photoelectron response that we deem related to the triplet exciton dissociation at the interface with the underlying C60 film. A similar effect is also observed in pump-probe photoemission spectra of tetracene / copper phthalocyanine interfaces. On this second system, we tuned the pump wavelength to selectively excite the two materials and examined the different behavior of the photogenerated excitons; the presence of a transient field in the microsecond time scale suggests that triplet excitons are involved in the charge transfer that occurs from tetracene to copper phthalocyanine, in agreement with previous studies. The results presented here demonstrate that time-resolved X-ray spectroscopies can provide valuable information for the characterization of exciton dynamics in hetero-organic interfaces.
Liebhaber, Martin Lutz [Verfasser]. "Silicon heterojunction solar cells: From conventional concepts to a singlet fission multi-exciton generating hybrid approach / Martin Lutz Liebhaber". Berlin : Freie Universität Berlin, 2017. http://d-nb.info/1129174549/34.
Texto completoMorrison, Adrian Franklin. "An Efficient Method for Computing Excited State Properties of Extended Molecular Aggregates Based on an Ab-Initio Exciton Model". The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1509730158943602.
Texto completoWeiss, Leah Rachel. "Spin-sensitive probes of triplet excitons in organic semiconductors". Thesis, University of Cambridge, 2019. https://www.repository.cam.ac.uk/handle/1810/286356.
Texto completoHamid, Tasnuva. "Interplay of singlet and triplet Excitons in organic semiconductor Heterojunctions". Thesis, Queensland University of Technology, 2021. https://eprints.qut.edu.au/208018/1/Tasnuva_Hamid_Thesis.pdf.
Texto completoConrad-Burton, Felisa. "Singlet Fission: A Twisted Tale". Thesis, 2021. https://doi.org/10.7916/d8-rd2f-n908.
Texto completoCapítulos de libros sobre el tema "Singlet exciton fission"
Alvertis, Antonios M. "Molecular Movie of Ultrafast Singlet Exciton Fission". En On Exciton–Vibration and Exciton–Photon Interactions in Organic Semiconductors, 143–67. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-85454-6_8.
Texto completoAlvertis, Antonios M. "Controlling the Coherent Versus Incoherent Character of Singlet Fission". En On Exciton–Vibration and Exciton–Photon Interactions in Organic Semiconductors, 169–96. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-85454-6_9.
Texto completoBakulin, Artem A., Sarah E. Morgan, Jan Alster, Dassia Egorova, Alex Chin, Donatas Zigmantas y Akshay Rao. "Vibrational Coherence Reveals the Role of Dark Multiexciton States in Ultrafast Singlet Exciton Fission". En Springer Proceedings in Physics, 226–29. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-13242-6_54.
Texto completoActas de conferencias sobre el tema "Singlet exciton fission"
Zaykov, Alexandr, Josef Michl, Zdeněk Havlas, Eric Buchanan y Milena Jovanović. "Singlet Fission: Chromophores for Exciton Downconversion". En nanoGe Fall Meeting 2019. València: Fundació Scito, 2019. http://dx.doi.org/10.29363/nanoge.ngfm.2019.172.
Texto completoZaykov, Alexandr, Josef Michl, Zdeněk Havlas, Eric Buchanan y Milena Jovanović. "Singlet Fission: Chromophores for Exciton Downconversion". En nanoGe Fall Meeting 2019. València: Fundació Scito, 2019. http://dx.doi.org/10.29363/nanoge.nfm.2019.172.
Texto completoKolata, K., T. Breuer, G. Witte y S. Chatterjee. "Singlet-Exciton Fission Dynamics in Single-Crystalline Perfluoropentacene". En Laser Science. Washington, D.C.: OSA, 2015. http://dx.doi.org/10.1364/ls.2015.lw5h.3.
Texto completoBiaggio, Ivan y Eric A. Wolf. "Geminate exciton fusion fluorescence as a probe of triplet exciton transport after singlet fission". En Frontiers in Optics. Washington, D.C.: Optica Publishing Group, 2022. http://dx.doi.org/10.1364/fio.2022.jtu4a.28.
Texto completoWu, Tony C., Markus Einzinger, Julia Kompalla, Hannah L. Smith, Collin F. Perkinson, Lea Nienhaus, Sarah Wieghold et al. "Sensitization of silicon by singlet exciton fission in tetracene". En Physical Chemistry of Semiconductor Materials and Interfaces IX, editado por Daniel Congreve, Christian Nielsen y Andrew J. Musser. SPIE, 2020. http://dx.doi.org/10.1117/12.2567365.
Texto completoFriend, Richard. "New materials for singlet exciton fission to triplet pairs". En nanoGe Fall Meeting 2019. València: Fundació Scito, 2019. http://dx.doi.org/10.29363/nanoge.ngfm.2019.339.
Texto completoSeiler, Hélène, Marcin Krynski, Daniela Zahn, Yoav William Windsor, Thomas Vasileiadis, Sebastian Hammer, Jens Pflaum, Mariana Rossi, Ralph Ernstorfer y Heinrich Schwoerer. "Probing atomic motions accompanying singlet exciton fission in pentacene". En International Conference on Ultrafast Phenomena. Washington, D.C.: OSA, 2020. http://dx.doi.org/10.1364/up.2020.th2a.5.
Texto completoRao, Akshay, Andrew Musser, Philipp Kukura y Christoph Schnedermann. "Exploring the Ultrafast Vibronic Dynamics of Singlet Exciton Fission". En International Conference on Ultrafast Phenomena. Washington, D.C.: OSA, 2016. http://dx.doi.org/10.1364/up.2016.uw3a.1.
Texto completoFriend, Richard. "New materials for singlet exciton fission to triplet pairs". En nanoGe Fall Meeting 2019. València: Fundació Scito, 2019. http://dx.doi.org/10.29363/nanoge.nfm.2019.339.
Texto completoPandey, Ajay, Tasnuva Hamid, Soniya D. Yambem, Ross Crawford y Jonathan Roberts. "Triplet energy transfer and triplet exciton recycling in singlet fission sensitized organic heterojunctions". En Organic, Hybrid, and Perovskite Photovoltaics XVIII, editado por Kwanghee Lee, Zakya H. Kafafi y Paul A. Lane. SPIE, 2017. http://dx.doi.org/10.1117/12.2273804.
Texto completoInformes sobre el tema "Singlet exciton fission"
Shiozaki, Toru. Electronic Structure Theories of Singlet Fission and Multiple Exciton Generation. Office of Scientific and Technical Information (OSTI), septiembre de 2020. http://dx.doi.org/10.2172/1661872.
Texto completoMichl, J. Singlet-Fission Sensitizers for Ultra-High Efficiency Excitonic Solar Cells: 15 August 2005 - 14 October 2008. Office of Scientific and Technical Information (OSTI), diciembre de 2008. http://dx.doi.org/10.2172/945956.
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