Controlling Spontaneous Emission from Perovskite Nanocrystals with Metal–Emitter–Metal Nanostructures

Liliana Tjahjana; Kwan Lee; Xin Yu Chin; Landobasa Y.M. Tobing; Gede W.P. Adhyaksa; Dao Hua Zhang; Muhammad Danang Birowosuto; Hong Wang

doi:10.3390/cryst11010001

Crystals (Dec 2020)

Controlling Spontaneous Emission from Perovskite Nanocrystals with Metal–Emitter–Metal Nanostructures

Liliana Tjahjana,
Kwan Lee,
Xin Yu Chin,
Landobasa Y.M. Tobing,
Gede W.P. Adhyaksa,
Dao Hua Zhang,
Muhammad Danang Birowosuto,
Hong Wang

Affiliations

Liliana Tjahjana: CINTRA (CNRS-International-NTU-THALES Research Alliances/UMI 3288), Research Techno Plaza, 50 Nanyang Drive, Border X Block, Level 6, Singapore 637553, Singapore
Kwan Lee: CINTRA (CNRS-International-NTU-THALES Research Alliances/UMI 3288), Research Techno Plaza, 50 Nanyang Drive, Border X Block, Level 6, Singapore 637553, Singapore
Xin Yu Chin: Energy Research Institute @ NTU (ERIAN), Research Techno Plaza, 50 Nanyang Drive, X-Frontiers Block, Level 5, Singapore 637553, Singapore
Landobasa Y.M. Tobing: School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
Gede W.P. Adhyaksa: Energy Research Institute @ NTU (ERIAN), Research Techno Plaza, 50 Nanyang Drive, X-Frontiers Block, Level 5, Singapore 637553, Singapore
Dao Hua Zhang: School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
Muhammad Danang Birowosuto: CINTRA (CNRS-International-NTU-THALES Research Alliances/UMI 3288), Research Techno Plaza, 50 Nanyang Drive, Border X Block, Level 6, Singapore 637553, Singapore
Hong Wang: CINTRA (CNRS-International-NTU-THALES Research Alliances/UMI 3288), Research Techno Plaza, 50 Nanyang Drive, Border X Block, Level 6, Singapore 637553, Singapore

DOI: https://doi.org/10.3390/cryst11010001
Journal volume & issue: Vol. 11, no. 1
p. 1

Abstract

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We show the increase of the photoluminescence intensity ratio (PLR) and the emission rate enhancement of perovskite cesium lead bromide (CsPbBr3) and formamidinium lead bromide (FAPbBr3) nanocrystals (NCs) in the presence of single and double gold layer cavities, which we refer to as Metal-Emitter (ME) and Metal-Emitter-Metal (MEM) nanostructures. Up to 1.9-fold PLRs and up to 5.4-fold emission rate enhancements were obtained for FAPbBr3 NCs confined by double gold layers, which are attributed to plasmonic confinement from the gold layers. The experimentally obtained values are validated by analytical calculations and electromagnetic simulations. Such an effective method of manipulation of the spontaneous emission by simple plasmonic nanostructures can be utilized in sensing and detection applications.

Published in Crystals

ISSN: 2073-4352 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry: Crystallography
Website: http://www.mdpi.com/journal/crystals/

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