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Nanophotonic-Enhanced Two-Photon-Excited Photoluminescence of Perovskite Quantum Dots

Becker, Christiane; Burger, Sven; Barth, Carlo; Manley, Phillip; Jäger, Klaus; Eisenhauer, David; Köppel, Grit; Chabera, Pavel LU ; Chen, Junsheng LU and Zheng, Kaibo LU , et al. (2018) In ACS Photonics 5(11). p.4668-4676
Abstract

All-inorganic CsPbBr3 perovskite colloidal quantum dots have recently emerged as a promising material for a variety of optoelectronic applications, among others for multiphoton-pumped lasing. Nevertheless, high irradiance levels are generally required for such multiphoton processes. One strategy to enhance the multiphoton absorption is taking advantage of high local light intensities using photonic nanostructures. Here, we investigate two-photon-excited photoluminescence of CsPbBr3 perovskite quantum dots on a silicon photonic crystal slab. By systematic excitation of optical resonances using a pulsed near-infrared laser beam, we observe an enhancement of two-photon-pumped photoluminescence by more than 1 order of... (More)

All-inorganic CsPbBr3 perovskite colloidal quantum dots have recently emerged as a promising material for a variety of optoelectronic applications, among others for multiphoton-pumped lasing. Nevertheless, high irradiance levels are generally required for such multiphoton processes. One strategy to enhance the multiphoton absorption is taking advantage of high local light intensities using photonic nanostructures. Here, we investigate two-photon-excited photoluminescence of CsPbBr3 perovskite quantum dots on a silicon photonic crystal slab. By systematic excitation of optical resonances using a pulsed near-infrared laser beam, we observe an enhancement of two-photon-pumped photoluminescence by more than 1 order of magnitude when comparing to using a bulk silicon film. Experimental and numerical analyses allow relating these findings to near-field enhancement effects on the nanostructured silicon surface. The results reveal a promising approach for significantly decreasing the required irradiance levels for multiphoton processes being of advantage in applications such as biomedical imaging, lighting, and solar energy.

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publication status
published
subject
keywords
all-inorganic cesium lead halide perovskites, metasurface, nanophotonics, photoluminescence, quantum dot, two-photon absorption
in
ACS Photonics
volume
5
issue
11
pages
9 pages
publisher
The American Chemical Society
external identifiers
  • scopus:85057051063
ISSN
2330-4022
DOI
10.1021/acsphotonics.8b01199
language
English
LU publication?
yes
id
bdc8c210-5207-4001-b5cc-375de6357696
date added to LUP
2018-12-03 15:07:22
date last changed
2019-03-19 04:03:13
@article{bdc8c210-5207-4001-b5cc-375de6357696,
  abstract     = {<p>All-inorganic CsPbBr<sub>3</sub> perovskite colloidal quantum dots have recently emerged as a promising material for a variety of optoelectronic applications, among others for multiphoton-pumped lasing. Nevertheless, high irradiance levels are generally required for such multiphoton processes. One strategy to enhance the multiphoton absorption is taking advantage of high local light intensities using photonic nanostructures. Here, we investigate two-photon-excited photoluminescence of CsPbBr<sub>3</sub> perovskite quantum dots on a silicon photonic crystal slab. By systematic excitation of optical resonances using a pulsed near-infrared laser beam, we observe an enhancement of two-photon-pumped photoluminescence by more than 1 order of magnitude when comparing to using a bulk silicon film. Experimental and numerical analyses allow relating these findings to near-field enhancement effects on the nanostructured silicon surface. The results reveal a promising approach for significantly decreasing the required irradiance levels for multiphoton processes being of advantage in applications such as biomedical imaging, lighting, and solar energy.</p>},
  author       = {Becker, Christiane and Burger, Sven and Barth, Carlo and Manley, Phillip and Jäger, Klaus and Eisenhauer, David and Köppel, Grit and Chabera, Pavel and Chen, Junsheng and Zheng, Kaibo and Pullerits, Tõnu},
  issn         = {2330-4022},
  keyword      = {all-inorganic cesium lead halide perovskites,metasurface,nanophotonics,photoluminescence,quantum dot,two-photon absorption},
  language     = {eng},
  month        = {11},
  number       = {11},
  pages        = {4668--4676},
  publisher    = {The American Chemical Society},
  series       = {ACS Photonics},
  title        = {Nanophotonic-Enhanced Two-Photon-Excited Photoluminescence of Perovskite Quantum Dots},
  url          = {http://dx.doi.org/10.1021/acsphotonics.8b01199},
  volume       = {5},
  year         = {2018},
}