2D metal halide perovskites: a new fascinating playground for exciton fine structure investigations

• Autorzy: Baranowski Michał , Dyksik Mateusz , Płochocka Paulina

Identyfikatory

DOI

10.58332/v22i1a01

• Języki publikacji: EN

Abstrakty

EN

Two-dimensional (2D) metal halide perovskites are natural quantum wells which consist of low bandgap metal-halide slabs, surrounded by organic spacers barriers. The quantum and dielectric confinements provided by the organic part lead to the extreme exciton binding energy which results in a huge enhancement of exciton fine structure in this material system. This makes 2D perovskites a fascinating playground for fundamental excitonic physics studies. In this review, we summarize the current understanding and quantification of the exciton fine structure in 2D perovskites. We discuss what is the role of exciton fine structure in the optical response of 2D perovskites and how it challenges our understanding of this fundamental excitation. Finally, we highlight some controversy related to particularly large bright-dark exciton states splitting and high efficiency of light emission from these materials. This can result from the unique synergy of excitonic and mechanical properties of 2D perovskites crystals.

Słowa kluczowe

EN

2D perovskites; exciton; fine structure; dark exciton states

PL

perowskity 2D; ekscyton; struktura subtelna; stany ciemne ekscytonu

• Wydawca: Radomskie Towarzystwo Naukowe
• Czasopismo: Scientiae Radices
• Rocznik: 2022
• Tom: Vol. 1, Iss. 1
• Strony: 3--25
• Opis fizyczny: Bibliogr. 86 poz., il. (w tym kolor.), rys., wykr.

Twórcy

autor

Baranowski Michał

• Department of Experimental Physics, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland

autor

Dyksik Mateusz

• Department of Experimental Physics, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland

autor

Płochocka Paulina

• Department of Experimental Physics, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland
• Laboratoire National des Champs Magnétiques Intenses, EMFL, CNRS UPR 3228, Université Grenoble Alpes, Université Toulouse, Université Toulouse 3, INSA-T, Grenoble and Toulouse, France

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).