Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Photoluminescence enhancement in wide spectral range excitation in CsPbBr3 nanocrystal/Ag nanostructure via surface plasmon coupling

Not Accessible

Your library or personal account may give you access

Abstract

This work demonstrates the surface plasmon (SP)-exciton coupling effect on the photoluminescence (PL) enhancement in CsPbBr3 nanocrystal (NC) at PMMA/Ag nanostructure (NS) in wide spectral range excitation. The spectra dependent time resolved PL measurement reveals that the emission photons are from the recombination of localized excitons and the PL enhancement can be attributed to the near-field effect, which is also supported by evidence that the enhancements are nearly the same in the whole excitation wavelength from 200 nm to 900 nm. The non-spectral dependence of the enhancement factor suggests that there is the same dynamic process of hot electrons in CsPbBr3 NC in multiphoton excitation. The hot electrons will relax into localized exciton states, and the electric field generated by SPs will enhance the radiative recombination of excitons. This work will have benefits for revealing dynamics of hot electron relaxing and interactions in multi-photon absorption, as well as the inner mechanism of SP coupling effects.

© 2019 Optical Society of America

Full Article  |  PDF Article
More Like This
Ultrafast resonant exciton–plasmon coupling for enhanced emission in lead halide perovskite with metallic Ag nanostructures

Yuxiang Tang, Yanbin Zhang, Fan Cao, Yizhen Sui, Xiang’ai Cheng, Lei Shi, and Tian Jiang
Opt. Lett. 47(15) 3916-3919 (2022)

Enhanced photoluminescence of CsPbBr3-xIx nanocrystals via plasmonic Au nanoarrays

Yangqing Wu, Qiaoling Han, Mei Wang, Fangying Juan, Guozhi Hou, Fan Xun, Haoming Wei, Jun Xu, and Bingqiang Cao
Opt. Express 29(22) 36988-36996 (2021)

Electron energy transfer effect in Au NS/CH3NH3PbI3-xClx heterostructures via localized surface plasmon resonance coupling

Chunfeng Cai, Jizhi Zhai, Gang Bi, and Huizhen Wu
Opt. Lett. 41(18) 4297-4300 (2016)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (3)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (2)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved