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2022_kalkan_advoptmater_smallHigh-Performance Monolayer MoS2 Field-Effect Transistors on Cyclic Olefin Copolymer-Passivated SiO2 Gate Dielectric

S.B. Kalkan, E. Najafidehaghani, Z. Gan, J. Drewniok, M.F. Lichtenegger, U. Hübner, A.S. Urban, A. George, A. Turchanin, B. Nickel
Advanced Optical Materials, early view





Cross Determination of Exciton Coherence Length in J-aggregates

A. Jumbo-Nogales, V. Krivenkov, K. Rusakov, A.S. Urban, M. Grzelczak, Y. Rakovich
The Journal of Physical Chemistry Letters 13 (43), 10198-10206


Thickness-Dependent Dark-Bright Exciton Splitting and 2022_Wang_NanoLettPhonon Bottleneck in CsPbBr3-Based Nanoplatelets Revealed via Magneto-Optical Spectroscopy

S. Wang, M. Dyksik, C. Lampe, M. Gramlich, D. K. Maude, M. Baranowski, A. S. Urban, P. Plochocka, A. Surrente
Nano Letters 22 (17), 7011-7019



Energy Transfer in Stability-Optimized Perovskite 2022_Greiner_NanoLettNanocrystals

M. G. Greiner, A. Singldinger, N. A. Henke, C. Lampe, U. Leo, M. Gramlich, A. S. Urban
Nano Letters 22 (16), 6709-6715


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. Brütting, A. S. Urban
Advanced Optical Materials 10, 2102791





2022_Lichtenegger1_SmallElectron–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, and Alexander S. Urban*
ACS Nano 16, 6317-6324



2021_Gramlich2_SmallDark 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, 2103013





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




2021_bramhaiah_jpcc_smallMolecular, 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_Gramlich_smallThickness-Dependence of Exciton-Exciton Annihilation in Halide Perovskite Nanoplatelets

M. Gramlich, B. J. Bohn, Y. Tong, L. Polavarapu, J. Feldmann, and A. S. Urban
The Journal of Physical Chemistry 11, 5361-5366 




Nonradiative Energy Transfer Between Thickness-Controlled Halide Perovskite Nanoplatelets

A. Singldinger, M. Gramlich, C. Gruber, C. Lampe, and A. S. Urban
ACS Energy Letters 5, 1380-1385




2019_Morgenstern_JLumin_sElucidating the Performance Limits of Perovskite Nanocrystal Light-Emitting Diodes

T. Morgenstern, C. Lampe, T. Naujoks, M. Jurow, Y. Liu, A. S. Urban, and W. Brütting
Journal of Luminescence 220, 116939






2019_Richter_ACSNano_sFast Electron and Slow Hole Relaxation in InP-Based Colloidal Quantum Dots

A. Richter, M. Binder, B.J. Bohn, N. Grumbach, S. Neyshtadt, A.S. Urban,
and J. Feldmann
ACS Nano 13 (12), 14408-14415 



2019_Janker_ACSNano_sReal-Time Electron and Hole Transport Dynamics in Halide Perovskite Nanowires

L. Janker, Y. Tong, L. Polavarapu, J. Feldmann, A. S. Urban, and H. J. Krenner
Nano Letters 19 (12), 8701-8707





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. Lohmueller, and A. S. Urban
Nano Letters 19 (8), 4928-4933




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. Li, T. N. Huq, S. Mackowski, L. Polavarapu, J. Feldmann, J. L. Macmanus-Driscoll, R. H: Friend, A. S. Urban, and S. D. Stranks
ACS Energy Letters 4, 1181-1188


Tuning the Optical Bandgap in Hybrid Layered 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, 5, 3296-3348







2018 Hintermayr ACSNanoAccelerated Carrier Relaxation through Reduced Coulomb Screening in 2D Halide Perovskite Nanoplatelets

V. A. Hintermayr, L. Polavarapu, A. S. Urban, J. Feldmann
ACS Nano 12, 10151-10158



2018_Aygüler_JApplPhysDLight-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 (33), 334001


2018 Bohn NanoLetters

Boosting tunable blue luminescence of halide perovskite nanoplatelets through post-synthetic surface trap repair

B. J. Bohn, Y. Tong, M. Gramlich, M. L. Lai, M. Döblinger, K. Wang,
R. L. Z. Hoye, P. M. Buschbaum, S. D. Stranks, A. S. Urban, L. Polavarapu,
J. Feldmann
Nano letters 18, 5231–5238


2018 Tong Advanced MaterialsSpontaneous 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. Doblinger, S. Bals, P. M. Buschbaum, A. S. Urban, L. Polavarapu, J. Feldmann
Advanced Materials 30, 1801117



2018_Manzi_NatCommunResonantly 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



2018_muhammed_jphyschemc_sStrong Quantum Confinement Effects and Chiral Excitons in Bio-Inspired ZnO–Amino Acid Cocrystals

M. A. Habeeb 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
The Journal of Physical Chemistry C 122 (11), 6348 - 6356


2018_Wang_AdvOptMaterPreferential Orientation of Crystals Induced by Incorporation of Organic Ligands in Mixed‐Dimensional Hybrid Perovskite Films

R. Wang, Y. Tong, A. Manzi, K. Wang, Z. Fu, E. Kentzinger, J. Feldmann, A. S. Urban, P. Müller‐Buschbaum, H. Frielinghaus
Advanced Optical Materials 6 (6), 1701311








2018 Bohn ACSPhotonics

Dephasing and quantum beating of excitons in methyl ammonium 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



2017bhattacharyya_sEffect 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. Döbliner, J. Feldmann, A. S. Urban, and J. K. Stolarczyk
Nature Communications 8 (1), 1401 (2017)




2017tong_sFrom Precursor Powders-to-CsPbX3 Perovskite Nanowires: One-pot Synthesis, Growth Mechanism and Oriented Self-assemblies
Y. Tong, B. J. Bohn, E. Bladt, K. Wang, P. M. Buschbaum, S. Bals, A. S. Urban, L. Polavarapu, J. Feldmann
Angew. Chem. Int. Ed. 56, 13887-13892 (2017)

2017ehrat_sTracking 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, and J. Feldmann
Nano Letters 17 (12), 7710–7716 (2017)



2017polavarapu_sAdvances in quantum-confined perovskite nanocrystals for optoelectronics
L. Polavarapu, B. Nickel, J. Feldmann, A. S. Urban
Advanced Energy Materials 7 (16), 1700267 (2017)

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