Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Charusheela Ramanan"'
Autor:
Kai Philipps, Yutaka Ie, Bas van derZee, Rui‐Qi Png, Peter K. H. Ho, Lay‐Lay Chua, Esther del Pino Rosendo, Charusheela Ramanan, Gert‐Jan A. H. Wetzelaer, Paul W. M. Blom, Jasper J. Michels
Publikováno v:
Advanced Science, Vol 9, Iss 19, Pp n/a-n/a (2022)
Abstract Excellent performance has been reported for organic light‐emitting diodes (OLEDs) based on small molecule emitters that exhibit thermally activated delayed fluorescence. However, the necessary vacuum processing makes the fabrication of lar
Externí odkaz:
https://doaj.org/article/c373a15f84d04c13a55e1ffa2cca6b2b
Autor:
Pan Li, Sven H. C. Askes, Esther del Pino Rosendo, Freek Ariese, Charusheela Ramanan, Elizabeth von Hauff, Andrea Baldi
Publikováno v:
Li, P, Askes, S H C, Del Pino Rosendo, E, Ariese, F, Ramanan, C, Von Hauff, E & Baldi, A 2023, ' Nanoscale Thermometry of Plasmonic Structures via Raman Shifts in Copper Phthalocyanine ', Journal of Physical Chemistry C, vol. 127, no. 20, pp. 9690-9698 . https://doi.org/10.1021/acs.jpcc.3c01561
The Journal of Physical Chemistry C
The Journal of Physical Chemistry C
Temperature measurements at the nanoscale are vital for the application of plasmonic structures in medical photothermal therapy and materials science but very challenging to realize in practice. In this work, we exploit a combination of surface-enhan
Autor:
Esther del Pino Rosendo, Okan Yildiz, Wojciech Pisula, Tomasz Marszalek, Paul W. M. Blom, Charusheela Ramanan
Publikováno v:
del Pino Rosendo, E, Yildiz, O, Pisula, W, Marszalek, T, Blom, P W M & Ramanan, C 2023, ' Symmetry-breaking charge transfer and intersystem crossing in copper phthalocyanine thin films ', Physical Chemistry Chemical Physics, vol. 25, no. 9, pp. 6847-6856 . https://doi.org/10.1039/d2cp05240g
Physical Chemistry Chemical Physics, 25(9), 6847-6856. The Royal Society of Chemistry
Physical Chemistry Chemical Physics
Physical Chemistry Chemical Physics, 25(9), 6847-6856. The Royal Society of Chemistry
Physical Chemistry Chemical Physics
Intermolecular interactions in π-stacked chromophores strongly influence their photophysical properties, and thereby also their function in photonic applications. Mixed electronic and vibrational coupling interactions lead to complex potential energ
Autor:
Johannes Moll, Robert Naumann, Lukas Sorge, Christoph Förster, Niklas Gessner, Lukas Burkhardt, Naz Ugur, Patrick Nuernberger, Wolfram Seidel, Charusheela Ramanan, Matthias Bauer, Katja Heinze
Publikováno v:
Chemistry-A European Journal, 28(57):e202201858, 1-12. Wiley-VCH Verlag
Chemistry – A European Journal
Moll, J, Naumann, R, Sorge, L, Förster, C, Gessner, N, Burkhardt, L, Ugur, N, Nuernberger, P, Seidel, W, Ramanan, C, Bauer, M & Heinze, K 2022, ' Pseudo-Octahedral Iron(II) Complexes with Near-Degenerate Charge Transfer and Ligand Field States at the Franck-Condon Geometry ', Chemistry-A European Journal, vol. 28, no. 57, e202201858, pp. 1-12 . https://doi.org/10.1002/chem.202201858
Chemistry – A European Journal
Moll, J, Naumann, R, Sorge, L, Förster, C, Gessner, N, Burkhardt, L, Ugur, N, Nuernberger, P, Seidel, W, Ramanan, C, Bauer, M & Heinze, K 2022, ' Pseudo-Octahedral Iron(II) Complexes with Near-Degenerate Charge Transfer and Ligand Field States at the Franck-Condon Geometry ', Chemistry-A European Journal, vol. 28, no. 57, e202201858, pp. 1-12 . https://doi.org/10.1002/chem.202201858
Increasing the metal-to-ligand charge transfer (MLCT) excited state lifetime of polypyridine iron(II) complexes can be achieved by lowering the ligand's π* orbital energy and by increasing the ligand field splitting. In the homo- and heteroleptic co
Autor:
Nathan East, Robert Naumann, Christoph Förster, Charusheela Ramanan, Gregor Diezemann, Katja Heinze
Highly reducing or oxidizing photocatalysts are a fundamental challenge in the field of inorganic and organic photochemistry. Only a few transition metal complexes with earth-abundant metal ions have so far advanced to excited state oxidants, includi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2387306307de4de30f4dc345c58499bd
https://doi.org/10.21203/rs.3.rs-2652114/v1
https://doi.org/10.21203/rs.3.rs-2652114/v1
Publikováno v:
Kitzmann, W R, Ramanan, C, Naumann, R & Heinze, K 2022, ' Molecular ruby: exploring the excited state landscape ', Dalton Transactions, vol. 51, no. 17, pp. 6519-6525 . https://doi.org/10.1039/d2dt00569g
Dalton Transactions
Dalton Transactions
The discovery of the highly NIR-luminescent molecular ruby [Cr(ddpd)2]3+ (ddpd = N,N′-dimethyl-N,N′-dipyridin-2-ylpyridine-2,6-diamine) has been a milestone in the development of earth-abundant luminophors and has led to important new impulses in
Autor:
Shuanglong Wang, Sabine Frisch, Heng Zhang, Okan Yildiz, Mukunda Mandal, Naz Ugur, Beomjin Jeong, Charusheela Ramanan, Denis Andrienko, Hai I. Wang, Mischa Bonn, Paul W. M. Blom, Milan Kivala, Wojciech Pisula, Tomasz Marszalek
Publikováno v:
Wang, S, Frisch, S, Zhang, H, Yildiz, O, Mandal, M, Ugur, N, Jeong, B, Ramanan, C, Andrienko, D, Wang, H I, Bonn, M, Blom, P W M, Kivala, M, Pisula, W & Marszalek, T 2022, ' Grain engineering for improved charge carrier transport in two-dimensional lead-free perovskite field-effect transistors ', Materials Horizons, vol. 9, no. 10, pp. 2633-2643 . https://doi.org/10.1039/d2mh00632d
Materials Horizons, 9(10), 2633-2643. Royal Society of Chemistry
Materials Horizons
Materials Horizons, 9(10), 2633-2643. Royal Society of Chemistry
Materials Horizons
Controlling crystal growth and reducing the number of grain boundaries are crucial to maximize the charge carrier transport in organic-inorganic perovskite field-effect transistors (FETs). Herein, the crystallization and growth kinetics of a Sn(ii)-b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba02b9c275bc133a56b8ee675e675ee6
https://hdl.handle.net/1871.1/9810fb93-452d-4fac-92ca-06b6ca4ce932
https://hdl.handle.net/1871.1/9810fb93-452d-4fac-92ca-06b6ca4ce932
Autor:
Michael Seitz, Pit Boden, Jens Kalmbach, Naz Ugur, Markus Gerhards, Luca M. Carrella, Christoph Förster, Katja Heinze, Gereon Niedner-Schatteburg, Ricardo Baez-Cruz, Eva Rentschler, Cui Wang, Florian Reichenauer, Charusheela Ramanan, Ute Resch-Genger
Publikováno v:
Journal of the American Chemical Society
Gaining chemical control over the thermodynamics and kinetics of photoexcited states is paramount to an efficient and sustainable utilization of photoactive transition metal complexes in a plethora of technologies. In contrast to energies of charge t
Autor:
Sudeshna Maity, Charusheela Ramanan, Freek Ariese, Roderick C. I. MacKenzie, Elizabeth von Hauff
Publikováno v:
Advanced Electronic Materials, 2022, Vol.8(7), pp.2101208 [Peer Reviewed Journal]
Advanced Electronic Materials, 8(7):2101208, 1-9. Wiley
Advanced Electronic Materials
Maity, S, Ramanan, C, Ariese, F, MacKenzie, R C I & von Hauff, E 2022, ' In Situ Visualization and Quantification of Electrical Self-Heating in Conjugated Polymer Diodes Using Raman Spectroscopy ', Advanced Electronic Materials, vol. 8, no. 7, 2101208, pp. 1-9 . https://doi.org/10.1002/aelm.202101208
Advanced Electronic Materials, 8(7):2101208. Wiley-VCH Verlag
Advanced Electronic Materials, 8(7):2101208, 1-9. Wiley
Advanced Electronic Materials
Maity, S, Ramanan, C, Ariese, F, MacKenzie, R C I & von Hauff, E 2022, ' In Situ Visualization and Quantification of Electrical Self-Heating in Conjugated Polymer Diodes Using Raman Spectroscopy ', Advanced Electronic Materials, vol. 8, no. 7, 2101208, pp. 1-9 . https://doi.org/10.1002/aelm.202101208
Advanced Electronic Materials, 8(7):2101208. Wiley-VCH Verlag
Self-heating in organic electronics can lead to anomalous electrical performance and even accelerated degradation. However, in the case of disordered organic semiconductors, self-heating effects are difficult to quantify using electrical techniques a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::239277bec9a7644fe1bea77c4d2ad3b6
http://dro.dur.ac.uk/35759/1/35759.pdf
http://dro.dur.ac.uk/35759/1/35759.pdf
Autor:
Charusheela Ramanan, Michael R. Jones, Adrian Ruff, Kalyani Thakur, Krzysztof Gibasiewicz, Wolfgang Schuhmann, Rafał Białek
Publikováno v:
The Journal of Physical Chemistry. B
Białek, R, Thakur, K, Ruff, A, Jones, M R, Schuhmann, W, Ramanan, C & Gibasiewicz, K 2020, ' Insight in the electron transfer from a redox polymer to a photoactive protein ', Journal of Physical Chemistry B . https://doi.org/10.1021/acs.jpcb.0c08714
The Journal of Physical Chemistry B
Białek, R, Thakur, K, Ruff, A, Jones, M R, Schuhmann, W, Ramanan, C & Gibasiewicz, K 2020, ' Insight in the electron transfer from a redox polymer to a photoactive protein ', Journal of Physical Chemistry B . https://doi.org/10.1021/acs.jpcb.0c08714
The Journal of Physical Chemistry B
Biohybrid photoelectrochemical systems in photovoltaic or biosensor applications have gained considerable attention in recent years. While the photoactive proteins engaged in such systems usually maintain an internal charge separation quantum yield o