Unlocking surface octahedral tilt in two-dimensional Ruddlesden-Popper perovskites

Yan Shao; Wei Gao; Hejin Yan; Runlai Li; Ibrahim Abdelwahab; Xiao Chi; Lukas Rogée; Lyuchao Zhuang; Wei Fu; Shu Ping Lau; Siu Fung Yu; Yongqing Cai; Kian Ping Loh; Kai Leng

doi:10.1038/s41467-021-27747-x

Nature Communications (Jan 2022)

Unlocking surface octahedral tilt in two-dimensional Ruddlesden-Popper perovskites

Yan Shao,
Wei Gao,
Hejin Yan,
Runlai Li,
Ibrahim Abdelwahab,
Xiao Chi,
Lukas Rogée,
Lyuchao Zhuang,
Wei Fu,
Shu Ping Lau,
Siu Fung Yu,
Yongqing Cai,
Kian Ping Loh,
Kai Leng

Affiliations

Yan Shao: Department of Chemistry, National University of Singapore
Wei Gao: Department of Applied Physics, The Hong Kong Polytechnic University
Hejin Yan: Institute of Applied Physics and Materials Engineering, University of Macau
Runlai Li: Department of Chemistry, National University of Singapore
Ibrahim Abdelwahab: Department of Chemistry, National University of Singapore
Xiao Chi: Department of Chemistry, National University of Singapore
Lukas Rogée: Department of Applied Physics, The Hong Kong Polytechnic University
Lyuchao Zhuang: Department of Applied Physics, The Hong Kong Polytechnic University
Wei Fu: Department of Chemistry, National University of Singapore
Shu Ping Lau: Department of Applied Physics, The Hong Kong Polytechnic University
Siu Fung Yu: Department of Applied Physics, The Hong Kong Polytechnic University
Yongqing Cai: Institute of Applied Physics and Materials Engineering, University of Macau
Kian Ping Loh: Department of Chemistry, National University of Singapore
Kai Leng: Department of Applied Physics, The Hong Kong Polytechnic University

DOI: https://doi.org/10.1038/s41467-021-27747-x
Journal volume & issue: Vol. 13, no. 1
pp. 1 – 10

Abstract

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The surface octahedral tilt in exfoliated 2D perovskites is directly visualized by STM and the degree of the tilt varies with the number of layers of inorganic slabs and result in different amounts of excitonic red shift in photoluminescence.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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