Detail publikace

Correlative Imaging of Individual CsPbBr3 Nanocrystals: Role of Isolated Grains in Photoluminescence of Perovskite Polycrystalline Thin Films

LIŠKA, P. MUSÁLEK, T. ŠAMOŘIL, T. KRATOCHVÍL, M. MATULA, R. HORÁK, M. NEDVĚD, M. URBAN, J. PLANER, J. ROVENSKÁ, K. DVOŘÁK, P. KOLÍBAL, M. KŘÁPEK, V. KALOUSEK, R. ŠIKOLA, T.

Originální název

Correlative Imaging of Individual CsPbBr3 Nanocrystals: Role of Isolated Grains in Photoluminescence of Perovskite Polycrystalline Thin Films

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

We report on the optical properties of a CsPbBr3 polycrystallinethin film on a single grain level. A sample composed of isolated nanocrystals(NCs) mimicking the properties of the polycrystalline thin film grainsthat can be individually probed by photoluminescence spectroscopywas prepared. These NCs were analyzed using correlative microscopyallowing the examination of structural, chemical, and optical propertiesfrom identical sites. Our results show that the stoichiometry of theCsPbBr(3) NCs is uniform and independent of the NCs'morphology. The photoluminescence (PL) peak emission wavelength isslightly dependent on the dimensions of NCs, with a blue shift upto 9 nm for the smallest analyzed NCs. The magnitude of theblueshift is smaller than the emission line width, thus detectableonly by high-resolution PL mapping. By comparing the emission energiesobtained from the experiment and a rigorous effective mass model,we can fully attribute the observed variations to the size-dependentquantum confinement effect.

Klíčová slova

TOTAL-ENERGY CALCULATIONS; QUANTUM CONFINEMENT; HALIDE PEROVSKITES; LUMINESCENT; EMISSION; SPECTRA; SIZE

Autoři

LIŠKA, P.; MUSÁLEK, T.; ŠAMOŘIL, T.; KRATOCHVÍL, M.; MATULA, R.; HORÁK, M.; NEDVĚD, M.; URBAN, J.; PLANER, J.; ROVENSKÁ, K.; DVOŘÁK, P.; KOLÍBAL, M.; KŘÁPEK, V.; KALOUSEK, R.; ŠIKOLA, T.

Vydáno

20. 6. 2023

Nakladatel

AMER CHEMICAL SOC

Místo

WASHINGTON

ISSN

1932-7447

Periodikum

Journal of Physical Chemistry C (print)

Ročník

127

Číslo

25

Stát

Spojené státy americké

Strany od

12404

Strany do

12413

Strany počet

10

URL

https://pubs.acs.org/doi/10.1021/acs.jpcc.3c03056

Plný text v Digitální knihovně

http://hdl.handle.net/11012/213688

BibTex

@article{BUT184172,
  author="Petr {Liška} and Tomáš {Musálek} and Tomáš {Šamořil} and Matouš {Kratochvíl} and Radovan {Matula} and Michal {Horák} and Matěj {Nedvěd} and Jakub {Urban} and Jakub {Planer} and Katarína {Rovenská} and Petr {Viewegh} and Miroslav {Kolíbal} and Vlastimil {Křápek} and Radek {Kalousek} and Tomáš {Šikola}",
  title="Correlative Imaging of Individual CsPbBr3 Nanocrystals: Role of Isolated Grains in Photoluminescence of Perovskite Polycrystalline Thin Films",
  journal="Journal of Physical Chemistry C (print)",
  year="2023",
  volume="127",
  number="25",
  pages="12404--12413",
  doi="10.1021/acs.jpcc.3c03056",
  issn="1932-7447",
  url="https://pubs.acs.org/doi/10.1021/acs.jpcc.3c03056"
}