DataVXAdvanced Functional MaterialsPaper
journal article·2024-01

Engineering and Controlling Perovskite Emissions via Optical Quasi‐Bound‐States‐in‐the‐Continuum

Evelin Csányi, Yan Liu, Soroosh Daqiqeh Rezaei, Henry Yit Loong Lee, Febiana Tjiptoharsono, Zackaria Mahfoud, Sergey Gorelik, Xiaofei Zhao, Li Jun Lim, Di Zhu, Jing Wu, Kuan Eng Johnson Goh, Weibo Gao, Zhi‐Kuang Tan, Graham Leggett, Cheng‐Wei Qiu, Zhaogang Dong

Advanced Functional Materials· Volume 34· Issue 2
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Source abstract

Abstract

Abstract Metal halide perovskite quantum dots (PQDs) have emerged as promising materials due to their exceptional photoluminescence (PL) properties. A wide range of applications could benefit from adjustable luminescence properties, while preserving the physical and chemical properties of the PQDs. Therefore, post‐synthesis engineering has gained attention recently, involving the use of ion‐exchange or external stimuli, such as extreme pressure, magnetic and electric fields. Nevertheless, these methods typically suffer from spectrum broadening, intensity quenching or yield multiple bands. Alternatively, photonic antennas can modify the radiative decay channel of perovskites via the Purcell effect, with the largest wavelength shift being 8 nm to date, at an expense of fivefold intensity loss. Here, this work presents an optical nanoantenna array with polarization‐controlled quasi‐bound‐states‐in‐the‐continuum resonances, which can engineer and shift the photoluminescence wavelength over a ≈39 nm range and confers a 21‐fold emission enhancement of FAPbI3 perovskite QDs. The spectrum is engineered in a non‐invasive manner via lithographically defined antennas and the pump laser polarization at ambient conditions. This research provides a path toward advanced optoelectronic devices, such as spectrally tailored quantum emitters and lasers.
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Research context

NanomaterialsElectronic materials

OpenAlex topics: Perovskite Materials and Applications · Strong Light-Matter Interactions · Advanced Photonic Communication Systems

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Institute of Materials Research and Engineering (IMRE) Agency for Science Technology and Research (A*STAR) 2 Fusionopolis Way, Innovis #08‐03 Singapore 138634 Singapore

Department of Chemistry University of Sheffield Brook Hill Sheffield S3 7HF UK

Pennsylvania State University State College PA 16801 USA

Singapore Institute of Food and Biotechnology Innovation Agency for Science Technology and Research (A*STAR) 31 Biopolis Way, #01‐02 Nanos Singapore 138669 Singapore

Department of Chemistry 3 Science Drive 3 National University of Singapore Singapore 117543 Singapore

Division of Physics and Applied Physics School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore

Department of Physics National University of Singapore Singapore 117551 Singapore

Department of Electrical and Computer Engineering National University of Singapore 4 Engineering Drive 3 Singapore 117583 Singapore

Department of Materials Science and Engineering National University of Singapore 9 Engineering Drive 1 Singapore 117575 Singapore

Funding

National Research Foundation Singapore · Agency for Science, Technology and Research

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