Optical Properties of Perovskite‐Organic Multiple Quantum Wells

Tobias Antrack; Martin Kroll; Markas Sudzius; Changsoon Cho; Paulius Imbrasas; Miguel Albaladejo‐Siguan; Johannes Benduhn; Lena Merten; Alexander Hinderhofer; Frank Schreiber; Sebastian Reineke; Yana Vaynzof; Karl Leo

doi:10.1002/advs.202200379

Advanced Science (Aug 2022)

Optical Properties of Perovskite‐Organic Multiple Quantum Wells

Tobias Antrack,
Martin Kroll,
Markas Sudzius,
Changsoon Cho,
Paulius Imbrasas,
Miguel Albaladejo‐Siguan,
Johannes Benduhn,
Lena Merten,
Alexander Hinderhofer,
Frank Schreiber,
Sebastian Reineke,
Yana Vaynzof,
Karl Leo

Affiliations

Tobias Antrack: Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute for Applied Physics Technische Universität Dresden Nöthnitzer Str. 61 01187 Dresden Germany
Martin Kroll: Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute for Applied Physics Technische Universität Dresden Nöthnitzer Str. 61 01187 Dresden Germany
Markas Sudzius: Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute for Applied Physics Technische Universität Dresden Nöthnitzer Str. 61 01187 Dresden Germany
Changsoon Cho: Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute for Applied Physics Technische Universität Dresden Nöthnitzer Str. 61 01187 Dresden Germany
Paulius Imbrasas: Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute for Applied Physics Technische Universität Dresden Nöthnitzer Str. 61 01187 Dresden Germany
Miguel Albaladejo‐Siguan: Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute for Applied Physics Technische Universität Dresden Nöthnitzer Str. 61 01187 Dresden Germany
Johannes Benduhn: Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute for Applied Physics Technische Universität Dresden Nöthnitzer Str. 61 01187 Dresden Germany
Lena Merten: Institut für Angewandte Physik Universität Tübingen Auf der Morgenstelle 10 72076 Tübingen Germany
Alexander Hinderhofer: Institut für Angewandte Physik Universität Tübingen Auf der Morgenstelle 10 72076 Tübingen Germany
Frank Schreiber: Institut für Angewandte Physik Universität Tübingen Auf der Morgenstelle 10 72076 Tübingen Germany
Sebastian Reineke: Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute for Applied Physics Technische Universität Dresden Nöthnitzer Str. 61 01187 Dresden Germany
Yana Vaynzof: Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute for Applied Physics Technische Universität Dresden Nöthnitzer Str. 61 01187 Dresden Germany
Karl Leo: Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute for Applied Physics Technische Universität Dresden Nöthnitzer Str. 61 01187 Dresden Germany

DOI: https://doi.org/10.1002/advs.202200379
Journal volume & issue: Vol. 9, no. 24
pp. n/a – n/a

Abstract

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Abstract A comprehensive study of the optical properties of CsPbBr3 perovskite multiple quantum wells (MQW) with organic barrier layers is presented. Quantum confinement is observed by a blue‐shift in absorption and emission spectra with decreasing well width and agrees well with simulations of the confinement energies. A large increase of emission intensity with thinner layers is observed, with a photoluminescence quantum yield up to 32 times higher than that of bulk layers. Amplified spontaneous emission (ASE) measurements show very low thresholds down to 7.3 µJ cm−2 for a perovskite thickness of 8.7 nm, significantly lower than previously observed for CsPbBr3 thin‐films. With their increased photoluminescence efficiency and low ASE thresholds, MQW structures with CsPbBr3 are excellent candidates for high‐efficiency perovskite‐based LEDs and lasers.

Published in Advanced Science

ISSN: 2198-3844 (Online)
Publisher: Wiley
Country of publisher: Germany
LCC subjects: Science
Website: https://onlinelibrary.wiley.com/journal/21983844

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