2024
Dark-Bright Exciton Splitting Dominates Low-Temperature Diffusion in Halide Perovskite Nanocrystal Assemblies
A. J. Bornschlegl, M. F. Lichtenegger, L. Luber, C. Lampe, M. I. Bodnarchuk, M. V. Kovalenko, A. S. Urban
Advanced Energy Materials, early view
2023
Lead-Free, Luminescent Perovskite Nanocrystals Obtained through Ambient Condition Synthesis
F. Treber, K. Frank, B. Nickel, C. Lampe, A. S. Urban
Small 19, 2300525
Fine-Tuning Blue-Emitting Halide Perovskite Nanocrystals
S. Martin, N. A. Henke, C. Lampe, M. Döblinger, K. Frank, P. Ganswindt, B. Nickel, A. S. Urban
Advanced Optical Materials, early view, 2301009
Rapid Data-Efficient Optimization of Perovskite Nanocrystal Syntheses through Machine Learning Algorithm Fusion
C. Lampe, I. Kouroudis, M. Harth, S. Martin, A. Gagliardi, A. S. Urban
Advanced Materials 35, 2208772
2022
Doubly Stabilized Perovskite Nanocrystal Luminescence Downconverters
Q. Xue, C. Lampe, T. Naujoks, K. Frank, M. Gramlich, M. Schoger, W. Vanderlinden, P. Reisbeck, B. Nickel, W. Brutting, A. S. Urban
Advanced Optical Materials 10, 2102791
Thickness-Dependent Dark-Bright Exciton Splitting and Phonon Bottleneck in CsPbBr-Based Nanoplatelets Revealed via Magneto- Optical Spectroscopy
S. L. Wang, M. Dyksik, C. Lampe, M. Gramlich, D. K. Maude, M. Baranowski, A. S. Urban, P. Plochocka, A. Surrente
Nano Letters 22, 7011-7019
Electron-Hole Binding Governs Carrier Transport in Halide Perovskite Nanocrystal Thin Films
M. F. Lichtenegger, J. Drewniok, A. Bornschlegl, C. Lampe, A. Singldinger, N. A. Henke, A. S. Urban
ACS Nano 16, 6317-6324
High-Performance Monolayer MoS Field-Effect Transistors on Cyclic Olefin Copolymer-Passivated SiO Gate Dielectric
S. B. Kalkan, E. Najafidehaghani, Z. Y. Gan, J. Drewniok, M. F. Lichtenegger, U. Huebner, A. S. Urban, A. George, A. Turchanin, B. Nickel
Advanced Optical Materials 11, 2201653
Cross Determination of Exciton Coherence Length in J-Aggregates
A. Jumbo-Nogales, V. Krivenkov, K. Rusakov, A. S. Urban, M. Grzelczak, Y. P. Rakovich Journal of Physical Chemistry Letters 13, 10198-10206
Energy Transfer in Stability-Optimized Perovskite Nanocrystals
M. G. Greiner, A. Singldinger, N. A. Henke, C. Lampe, U. Leo, M. Gramlich, A. S. Urban
Nano Letters 22, 6709-6715
Dark and Bright Excitons in Halide Perovskite Nanoplatelets
M. Gramlich, M. W. Swift, C. Lampe, J. L. Lyons, M. Döblinger, A. L. Efros, P. C. Sercel, A. S. Urban
Advanced Science 9, 2103013
2021
How Exciton–Phonon Coupling Impacts Photoluminescence in Halide Perovskite Nanoplatelets
M. Gramlich, C. Lampe, J. Drewniok, and A. S. Urban
The Journal of Physical Chemistry Letters 12, 11371-11377
Molecular, Aromatic, and Amorphous Domains of N-Carbon Dots: Leading toward the Competitive Photoluminescence and Photocatalytic Properties
K. Bramhaiah, R. Bhuyan, S. Mandal, S. Kar, R. Prabhu, N. S. John, M. Gramlich, A. S. Urban, and S. Bhattacharyya
The Journal of Physical Chemistry C 125, 4299-4309
2020
Nonradiative Energy Transfer between Thickness-Controlled Halide Perovskite Nanoplatelets
A. Singldinger, M. Gramlich, C. Gruber, C. Lampe, A. S. Urban
ACS Energy Letters 5, 1380-1385
Elucidating the performance limits of perovskite nanocrystal light emitting diodes
T. Morgenstern, C. Lampe, T. Naujoks, M. Jurow, Y. Liu, A. S. Urban, W. Brütting
Journal of Luminescence 220, 116939
Thickness-Dependence of Exciton-Exciton Annihilation in Halide Perovskite Nanoplatelets
M. Gramlich, B. J. Bohn, Y. Tong, L. Polavarapu, J. Feldmann, A. S. Urban
Journal of Physical Chemistry Letters 11, 5361-5366
2019
Ru(TAP)32+ uses multivalent binding to accelerate and constrain photo-adduct formation on DNA
W. Vanderlinden, P. J. Kolbeck, W. Frederickx, S. F. Konrad, T. Nicolaus, C. Lampe, A. S. Urban, C. Moucheron, J. Lipfert
Chemical Communications 55, 8764-8767
Tuning the optical bandgap in layered hybrid perovskites through variation of alkyl chain length
J. A. Sichert, A. Hemmerling, C. Cardenas-Daw, A. S. Urban, J. Feldmann
APL Materials 7, 041116
Metal Halide Perovskite Nanocrystals: Synthesis, Post-Synthesis Modifications, and Their Optical Properties
J. Shamsi, A. S. Urban, M. Imran, L. De Trizio, L. Manna
Chemical Reviews 119, 3296-3348
Fast Electron and Slow Hole Relaxation in InP-Based Colloidal Quantum Dots
A. F. Richter, M. Binder, B. J. Bohn, N. Grumbach, S. Neyshtadt, A. S. Urban, J. Feldmann
ACS Nano 13, 14408-14415
Real-Time Electron and Hole Transport Dynamics in Halide Perovskite Nanowires
L. Janker, Y. Tong, L. Polavarapu, J. Feldmann, A. S. Urban, H. J. Krenner
Nano Letters 19, 8701-8707
Identifying and Reducing Interfacial Losses to Enhance Color-Pure Electroluminescence in Blue-Emitting Perovskite Nanoplatelet Light-Emitting Diodes
R. L. Z. Hoye, M. L. Lai, M. Anaya, Y. Tong, K. Galkowski, T. Doherty, W. W. Li, T. N. Huq, S. Mackowski, L. Polavarapu, J. Feldmann, J. L. MacManus-Driscoll, R. H. Friend, A. S. Urban, S. D. Stranks
ACS Energy Letters 4, 1181-1188
Polymer Nanoreactors Shield Perovskite Nanocrystals from Degradation
V. A. Hintermayr, C. Lampe, M. Löw, J. Roemer, W. Vanderlinden, M. Gramlich, A. X. Böhm, C. Sattler, B. Nickel, T. Lohmüller, A. S. Urban
Nano Letters 19, 4928-4933
2018
Preferential Orientation of Crystals Induced by Incorporation of Organic Ligands in Mixed-Dimensional Hybrid Perovskite Films
R. Wang, Y. Tong, A. Manzi, K. Wang, Z. D. Fu, E. Kentzinger, J. Feldmann, A. S. Urban, P. Müller-Buschbaum, H. Frielinghaus
Advanced Optical Materials 6, 1701311
Spontaneous Self-Assembly of Perovskite Nanocrystals into Electronically Coupled Supercrystals: Toward Filling the Green Gap
Y. Tong, E. P. Yao, A. Manzi, E. Bladt, K. Wang, M. Döblinger, S. Bals, P. Müller-Buschbaum, A. S. Urban, L. Polavarapu, J. Feldmann
Advanced Materials 30, 1801117
Strong Quantum Confinement Effects and Chiral Excitons in BioInspired ZnO-Amino Acid Cocrystals
M. A. H. Muhammed, M. Lamers, V. Baumann, P. Dey, A. J. Blanch, I. Polishchuk, X. T. Kong, D. Levy, A. S. Urban, A. O. Govorov, B. Pokroy, J. Rodríguez-Fernández, J. Feldmann
Journal of Physical Chemistry C 122, 6348-6356
Resonantly enhanced multiple exciton generation through below-band-gap multi-photon absorption in perovskite nanocrystals
A. Manzi, Y. Tong, J. Feucht, E. P. Yao, L. Polavarapu, A. S. Urban, J. Feldmann
Nature Communications 9, 1518
Accelerated Carrier Relaxation through Reduced Coulomb Screening in Two-Dimensional Halide Perovskite Nanoplatelets
V. A. Hintermayr, L. Polavarapu, A. S. Urban, J. Feldmann
ACS Nano 12, 10151-10158
Boosting Tunable Blue Luminescence of Halide Perovskite Nanoplatelets through Postsynthetic Surface Trap Repair
B. J. Bohn, Y. Tong, M. Gramlich, M. L. Lai, M. Döblinger, K. Wang, R. L. Z. Hoye, P. Müller-Buschbaum, S. D. Stranks, A. S. Urban, L. Polavarapu, J. Feldmann
Nano Letters 18, 5231-5238
Dephasing and Quantum Beating of Excitons in Methylammonium Lead Iodide Perovskite Nanoplatelets
B. J. Bohn, T. Simon, M. Gramlich, A. F. Richter, L. Polavarapu, A. S. Urban, J. Feldmann
ACS Photonics 5, 648-654
Light-emitting electrochemical cells based on inorganic metal halide perovskite nanocrystals
M. F. Aygüler, B. M. D. Puscher, Y. Tong, T. Bein, A. S. Urban, R. D. Costa, P. Docampo
Journal of Physics D: Applied Physics 51, 334001
2017
Tracking the source of carbon dot photoluminescence: aromatic domains versus molecular fluorophores
F. Ehrat, S. Bhattacharyya, J. Schneider, A. Löf, R. Wyrwich, A. L. Rogach, J. K. Stolarczyk, A. S. Urban, J. Feldmann
Nano Letters 17, 7710-7716
Effect of nitrogen atom positioning on the trade-off between emissive and photocatalytic properties of carbon dots
S. Bhattacharyya, F. Ehrat, P. Urban, R. Teves, R. Wyrwich, M. Döblinger, J. Feldmann, A. S. Urban, J. K. Stolarczyk
Nature Communications 8, 1401
From Precursor Powders to CsPbX3 Perovskite Nanowires: One‐Pot Synthesis, Growth Mechanism, and Oriented Self‐Assembly
Y. Tong, B. J. Bohn, E. Bladt, K. Wang, P. Müller-Buschbaum, S. Bals, A. S. Urban, L. Polavarapu, J. Feldmann
Angewandte Chemie 56, 13887-13892
Advances in Quantum‐Confined Perovskite Nanocrystals for Optoelectronics
L. Polavarapu, B. Nickel, J. Feldmann, A. S. Urban
Advanced Energy Materials 7, 1700267