Energy transfer engineering enabled efficient and broad-band near-infrared emission
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00638379" target="_blank" >RIV/68378271:_____/25:00638379 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21340/25:00387273
Result on the web
<a href="https://doi.org/10.1021/acsenergylett.5c01712" target="_blank" >https://doi.org/10.1021/acsenergylett.5c01712</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsenergylett.5c01712" target="_blank" >10.1021/acsenergylett.5c01712</a>
Alternative languages
Result language
angličtina
Original language name
Energy transfer engineering enabled efficient and broad-band near-infrared emission
Original language description
Near-infrared (NIR) light is crucial for medical diagnostics, industrial inspection, and military applications, but achieving both broad-band and efficient NIR luminescence remains challenging. Here, we propose an energy transfer strategy in low-dimensional halides to enable efficient NIR emission, exemplified by zero-dimensional Cs4CaI6:Yb2+,Sm2+. The optimized Cs4CaI6:1%Yb,3%Sm single crystals exhibit high internal and external quantum efficiencies of 73.3% and 47.8% in the NIR region, respectively, resulting from effective Yb2+→Sm2+ energy transfer. When integrated with a commercial blue-light-emitting chip, a record NIR photoelectric conversion efficiency of 31.0% is achieved. Moreover, Cs4CaI6:1%Yb,3%Sm exhibits an exceptional scintillation efficiency of 52,000 photons/MeV, representing a state-of-the-art performance among NIR scintillators. Its bright NIR scintillation enables clear imaging with polydimethylsiloxane-based scintillation screens, even under ambient light conditions, paving the way for portable outdoor X-ray imaging. This work provides an effective approach to achieve NIR emission for light-emitting diodes and scintillation applications.
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
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
<a href="/en/project/EF16_019%2F0000760" target="_blank" >EF16_019/0000760: Solid State Physics for 21st century</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ACS Energy Letters
ISSN
2380-8195
e-ISSN
2380-8195
Volume of the periodical
10
Issue of the periodical within the volume
8
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
3681-3688
UT code for WoS article
001526334300001
EID of the result in the Scopus database
2-s2.0-105010183691