Anti-Stokes photoluminescence study on a methylammonium lead bromide nanoparticle film
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F20%3APU137542" target="_blank" >RIV/00216305:26310/20:PU137542 - isvavai.cz</a>
Result on the web
<a href="https://pubs.rsc.org/en/content/articlepdf/2020/nr/d0nr04545d?page=search" target="_blank" >https://pubs.rsc.org/en/content/articlepdf/2020/nr/d0nr04545d?page=search</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/d0nr04545d" target="_blank" >10.1039/d0nr04545d</a>
Alternative languages
Result language
angličtina
Original language name
Anti-Stokes photoluminescence study on a methylammonium lead bromide nanoparticle film
Original language description
Photon coolingviaanti-Stokes photoluminescence (ASPL) is a promising approach to realize all-solid-state cryo-refrigeration by photoexcitation. Photoluminescence quantum yields close to 100% and a strong coupling between phonons and excited states are required to achieve net cooling. We have studied the anti-Stokes photoluminescence of thin films of methylammonium lead bromide nanoparticles. We found that the anti-Stokes photoluminescence is thermally activated with an activation energy of similar to 80 meV. At room temperature the ASPL up-conversion efficiency is similar to 60% and it depends linearly on the excitation intensity. Our results suggest that upon further optimization of their optical properties, the investigated particles could be promising candidates for the demonstration of photon cooling in thin solid films.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
—
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Nanoscale
ISSN
2040-3364
e-ISSN
2040-3372
Volume of the periodical
12
Issue of the periodical within the volume
31
Country of publishing house
GB - UNITED KINGDOM
Number of pages
6
Pages from-to
16556-16561
UT code for WoS article
000560178300014
EID of the result in the Scopus database
2-s2.0-85089616517