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Cryo-optical setup for wide-field microscopy and spectroscopy of luminescent nanomaterials

Tallarini, Lorenzo LU ; Lapo, Gioele LU ; López Cerón, Marzo C. ; Scheblykin, Ivan G. LU orcid and Baranov, Dmitry LU orcid (2026) In Nanoscale 18(3). p.1474-1482
Abstract
Studying photoluminescence (PL) is essential for understanding and
engineering light-emitting nanomaterials. Heterogeneous samples, such as
thin films and microstructures, require characterization of the spatial
distribution of PL intensity, spectra, lifetimes, and photon
correlations at the microscale under variable temperatures. Here we
describe a cryo-optical setup for micro-PL imaging, spectroscopy,
lifetime, and photon bunching measurements that addresses this need. The
system combines a home-built wide-field microscope with a commercial
closed-loop helium cryostat, a spectrograph equipped with an sCMOS
camera, and a Hanbury-Brown and Twiss interferometer
(HBT-interferometer). Optical... (More)
Studying photoluminescence (PL) is essential for understanding and
engineering light-emitting nanomaterials. Heterogeneous samples, such as
thin films and microstructures, require characterization of the spatial
distribution of PL intensity, spectra, lifetimes, and photon
correlations at the microscale under variable temperatures. Here we
describe a cryo-optical setup for micro-PL imaging, spectroscopy,
lifetime, and photon bunching measurements that addresses this need. The
system combines a home-built wide-field microscope with a commercial
closed-loop helium cryostat, a spectrograph equipped with an sCMOS
camera, and a Hanbury-Brown and Twiss interferometer
(HBT-interferometer). Optical layout and components of the setup are
described, and its performance is tested on samples of CsPbBr3
nanocrystal superlattices. This work aims to demonstrate that it is
feasible to develop an advanced microscopy and spectroscopy setup
suitable for material scientists focused on developing novel materials,
even if they initially lack extensive experience in advanced optical
methods. (Less)
Please use this url to cite or link to this publication:
author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Nanoscale
volume
18
issue
3
pages
9 pages
publisher
Royal Society of Chemistry
external identifiers
  • scopus:105025098898
  • pmid:41416988
ISSN
2040-3372
DOI
10.1039/d5nr04127a
project
Engineering of Superfluorescent Nanocrystal Solids
language
English
LU publication?
yes
id
bfb36291-c5c0-428b-bc11-ad8b2c9bb61d
date added to LUP
2026-01-31 11:57:06
date last changed
2026-02-02 13:07:23
@article{bfb36291-c5c0-428b-bc11-ad8b2c9bb61d,
  abstract     = {{Studying photoluminescence (PL) is essential for understanding and <br>
engineering light-emitting nanomaterials. Heterogeneous samples, such as<br>
 thin films and microstructures, require characterization of the spatial<br>
 distribution of PL intensity, spectra, lifetimes, and photon <br>
correlations at the microscale under variable temperatures. Here we <br>
describe a cryo-optical setup for micro-PL imaging, spectroscopy, <br>
lifetime, and photon bunching measurements that addresses this need. The<br>
 system combines a home-built wide-field microscope with a commercial <br>
closed-loop helium cryostat, a spectrograph equipped with an sCMOS <br>
camera, and a Hanbury-Brown and Twiss interferometer <br>
(HBT-interferometer). Optical layout and components of the setup are <br>
described, and its performance is tested on samples of CsPbBr<sub>3</sub><br>
 nanocrystal superlattices. This work aims to demonstrate that it is <br>
feasible to develop an advanced microscopy and spectroscopy setup <br>
suitable for material scientists focused on developing novel materials, <br>
even if they initially lack extensive experience in advanced optical <br>
methods.}},
  author       = {{Tallarini, Lorenzo and Lapo, Gioele and López Cerón, Marzo C. and Scheblykin, Ivan G. and Baranov, Dmitry}},
  issn         = {{2040-3372}},
  language     = {{eng}},
  month        = {{01}},
  number       = {{3}},
  pages        = {{1474--1482}},
  publisher    = {{Royal Society of Chemistry}},
  series       = {{Nanoscale}},
  title        = {{Cryo-optical setup for wide-field microscopy and spectroscopy of luminescent nanomaterials}},
  url          = {{https://lup.lub.lu.se/search/files/241042334/d5nr04127a.pdf}},
  doi          = {{10.1039/d5nr04127a}},
  volume       = {{18}},
  year         = {{2026}},
}