Manuel Kober-Czerny: Publications

Excellent Long-Range Charge-Carrier Mobility in 2D Perovskites

Fundacio Scito (2022)

Authors:

Manuel Kober-Czerny, Silvia G Motti, Philippe Holzhey, Bernard Wenger, Laura M Herz, Jongchul Lim, Henry Snaith

Excellent long-range charge-carrier mobility in 2D perovskites

Advanced Functional Materials (2022)

Authors:

Manuel Kober-Czerny, Silvia Genaro Motti, Philippe Holzhey, Bernard Wenger, Jongchul Lim, Laura Maria Herz, Henry James Snaith

Ultra-narrow room-temperature emission from single CsPbBr3 perovskite quantum dots

Nature Communications Springer Nature 13:1 (2022) 2587

Authors:

Gabriele Rainò, Nuri Yazdani, Simon C Boehme, Manuel Kober-Czerny, Chenglian Zhu, Franziska Krieg, Marta D Rossell, Rolf Erni, Vanessa Wood, Ivan Infante, Maksym V Kovalenko

Abstract:

Semiconductor quantum dots have long been considered artificial atoms, but despite the overarching analogies in the strong energy-level quantization and the single-photon emission capability, their emission spectrum is far broader than typical atomic emission lines. Here, by using ab-initio molecular dynamics for simulating exciton-surface-phonon interactions in structurally dynamic CsPbBr₃ quantum dots, followed by single quantum dot optical spectroscopy, we demonstrate that emission line-broadening in these quantum dots is primarily governed by the coupling of excitons to low-energy surface phonons. Mild adjustments of the surface chemical composition allow for attaining much smaller emission linewidths of 35−65 meV (vs. initial values of 70–120 meV), which are on par with the best values known for structurally rigid, colloidal II-VI quantum dots (20−60 meV). Ultra-narrow emission at room-temperature is desired for conventional light-emitting devices and paramount for emerging quantum light sources.

Robust excitons across the phase transition of two-dimensional hybrid perovskites

(2022)

Authors:

Jonas D Ziegler, Kai-Qiang Lin, Barbara Meisinger, Xiangzhou Zhu, Manuel Kober-Czerny, Pabitra K Nayak, Cecilia Vona, Takashi Taniguchi, Kenji Watanabe, Claudia Draxl, Henry J Snaith, John M Lupton, David A Egger, Alexey Chernikov

Excellent Long-Range Charge-Carrier Mobility in 2D Perovskites

University of Oxford (2022)

Authors:

Manuel Kober-Czerny, Silvia Genaro Motti, Philippe Holzhey, Bernard Wenger, Jongchul Lim, Laura Maria Herz, Henry J Snaith

Abstract:

The data was acquired as described in the 'Methods' section of the work. To analyse the data, python codes were run and are attached as well.

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