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Title: Strong plasmon-Wannier Mott exciton interaction with high aspect ratio colloidal quantum wells
Authors: Yu, Junhong
Hou, Songyan
Sharma, Manoj
Tobing, Landobasa Y. M.
Song, Zhigang
Delikanli, Savas
Hettiarachchi, Chathuranga
Zhang, Daohua
Fan, Weijun
Muhammad Danang Birowosuto
Wang, Hong
Demir, Hilmi Volkan
Dang, Cuong
Keywords: Science::Physics
Issue Date: 2020
Source: Yu, J., Hou, S., Sharma, M., Tobing, L. Y. M., Song, Z., Delikanli, S., Hettiarachchi, C., Zhang, D., Fan, W., Muhammad Danang Birowosuto, Wang, H., Demir, H. V. & Dang, C. (2020). Strong plasmon-Wannier Mott exciton interaction with high aspect ratio colloidal quantum wells. Matter, 2(6), 1550-1563.
Journal: Matter
Abstract: The strong interaction between excitons and plasmons, manifested as Rabi splitting of the eigen energies, is of fundamental interest for manipulating photons in nanoscale devices. Thanks to their enhanced photostability and minimal inhomogeneous broadening compared with organic molecules, inorganic emitters are preferred for practical applications. However, a relatively small Rabi splitting with inorganic materials severely hinders the active plasmonic operation, considering its weak optical nonlinearity and slow energy interexchange. Here, we circumvent this problem in a hybrid system consisting of high aspect ratio colloidal quantum wells (HARCQWs) and an individual plasmonic silver nanocube. By taking advantages of a highly in-plane oriented exciton, enhanced exciton binding energy, and non-stacking properties in HARCQWs, we demonstrate an unprecedented giant Rabi splitting energy up to 400 meV under ambient conditions, which is observed not only in scattering but also in photoluminescent spectra. These findings are a key step toward achieving inorganic plasmonic devices.
ISSN: 2590-2385
DOI: 10.1016/j.matt.2020.03.013
Rights: © 2020 Elsevier (Published under Cell Press). All rights reserved. This paper was published in Matter and is made available with permission of Elsevier (Published under Cell Press).
Fulltext Permission: open
Fulltext Availability: With Fulltext
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