Electrically Tunable and Modulated Perovskite Quantum Emitters via Surface‐Enhanced Landau Damping
Abstract
AbstractTuning quantum emission to a specific wavelength at room temperature holds significant promise for enhancing secure quantum communication, particularly by aligning with the Fraunhofer lines in the solar spectrum. The integration of quantum emitters with phase‐change materials enables emission wavelength modulation, especially when strong field enhancement is present. Antimony telluride (Sb2Te3) exhibits the potential to facilitate this functionality through its support of interband plasmonics and phase‐change behavior. In this study, Sb₂Te₃ antennae are designed and fabricated to tune the emission energy of adjacent perovskite quantum dots (QDs) by over 570 meV. The underlying mechanism involves the localized surface plasmons (LSPs) on Sb₂Te₃ nanostructures, which exhibit a surface‐enhanced Landau damping process that facilitates the decay of LSPs into electron‐hole pairs. The generated hot electrons are then injected into perovskite QDs via the microscopic electron transport process, which can be triggered by the transition of Sb2Te3 from amorphous to a crystalline state, resulting in a significant emission energy shift from 1.64 to 2.21 eV. Furthermore, the emission energy of perovskite QDs on crystalline Sb₂Te₃ nanoantennae can be modulated through DC voltage bias, highlighting the potential for extensive wavelength tunability of quantum emitters integrated with electronic systems.
Article Details
Authors (20)
Yan Liu
Jun Zhang
Evelin Csányi
Institute of Materials Research and Engineering (IMRE) Agency for Science Technology and Research (A*STAR) 2 Fusionopolis Way, Innovis #08‐03 Singapore 138634 Singapore
Nur Qalishah Adanan
Singapore University of Technology and Design 8 Somapah Road Singapore 487372 Singapore
Hongtao Wang
Engineering Research Center of Advanced Rare-Earth Materials of Ministry of Education, Department of Chemistry
Zheng Zhang
Sherry Lee Koon Yap
Institute of Materials Research and Engineering (IMRE) Agency for Science Technology and Research (A*STAR) 2 Fusionopolis Way, Innovis #08‐03 Singapore 138634 Singapore
Henry Yit Loong Lee
Institute of Materials Research and Engineering (IMRE) Agency for Science Technology and Research (A*STAR) 2 Fusionopolis Way, Innovis #08‐03 Singapore 138634 Singapore
Shutao Zhang
Wei Peng Goh
Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis, Singapore 138634, Singapore
Li Jun Lim
Zhi‐Kuang Tan
Department of Chemistry 3 Science Drive 3 National University of Singapore Singapore 117543 Singapore
Jian Rui Soh
Institute of Materials Research and Engineering (IMRE) Agency for Science Technology and Research (A*STAR) 2 Fusionopolis Way, Innovis #08‐03 Singapore 138634 Republic of Singapore
Lulu Xiong
Institute of Applied Physics and Materials Engineering
Dmitry A. Kalashnikov
Institute of Materials Research and Engineering (IMRE) Agency for Science Technology and Research (A*STAR) 2 Fusionopolis Way, Innovis #08‐03 Singapore 138634 Singapore
Robert E. Simpson
School of Engineering, University of Birmingham 3 , Edgbaston, Birmingham B15 2TT,
Cheng‐Wei Qiu
Department of Electrical and Computer Engineering National University of Singapore Singapore Singapore
N. Asger Mortensen
POLIMA–Center for Polariton‐driven Light Matter Interactions University of Southern Denmark Odense DK‐5230 Denmark
Joel K. W. Yang
Zhaogang Dong