Role of light trapping in the reciprocity between absorptance and photoluminescence in hybrid halide perovskite layers

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F25%3A00388814" target="_blank" >RIV/68407700:21230/25:00388814 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1117/12.3076002" target="_blank" >https://doi.org/10.1117/12.3076002</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1117/12.3076002" target="_blank" >10.1117/12.3076002</a>

Result language
angličtina
Original language name
Role of light trapping in the reciprocity between absorptance and photoluminescence in hybrid halide perovskite layers
Original language description
Hybrid perovskites are highly attractive for a range of optoelectronic applications. In the case of solar cells, a film thickness close to 1 micrometre is necessary to absorb most of the light. Otherwise, either a back reflector or an efficient light trapping strategy may be desired. Light trapping due to the light scattering on rough surfaces is the most straightforward method to increase optical path of light inside the absorber. Using this approach, we prepared experimentally layers featuring an absorptance enhancement that was corresponding to the photon path length extension several times. In parallel, we measured photoluminescence and recalculated it into absorptance employing reciprocity theorem. We could verify the validity of the theorem even for layers featuring light trapping, however, we identified many cases where the simple reciprocity applied on macroscopic measurable properties does not work.
Czech name
—
Czech description
—

Project
<a href="/en/project/GA23-06285S" target="_blank" >GA23-06285S: Novel ionic crystals and their surfaces as the key to future photovoltaic materials (NicePV)</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proc. SPIE 13698, Photonics, Devices, and Systems IX
ISBN
978-1-5106-9346-3
ISSN
0277-786X
e-ISSN
1996-756X
Number of pages
7
Pages from-to
"1369810-1"-"1369810-7"
Publisher name
The International Society for Optical Engineering (SPIE)
Place of publication
Bellingham WA
Event location
Prague
Event date
Jun 9, 2025
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
001723559900036

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