Below the urbach edge: solar cell loss analysis based on full external quantum efficiency spectra
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F23%3A00574647" target="_blank" >RIV/68378271:_____/23:00574647 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21230/23:00367099 RIV/00216208:11320/23:10472957
Result on the web
<a href="https://hdl.handle.net/11104/0346917" target="_blank" >https://hdl.handle.net/11104/0346917</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsenergylett.3c00951" target="_blank" >10.1021/acsenergylett.3c00951</a>
Alternative languages
Result language
angličtina
Original language name
Below the urbach edge: solar cell loss analysis based on full external quantum efficiency spectra
Original language description
We suggest a new solar cell loss analysis by using the external quantum efficiency (EQE) measured with sufficiently high sensitivity to also account for defects. Unlike common radiative-limit methods, where the impact of deep defects is ignored by exponential extrapolation of the Urbach absorption edge, our loss analysis considers the full EQE including states below the Urbach edge and uses corrections for band-filling and light trapping. We validate this new metric on a whole range of photovoltaic materials and verify its accuracy by electrical simulations. Any deviations between this newly established metric and experimental open circuit voltage are due to the presence of spatially localized defects and are explained as violations of the assumption of flat quasi-Fermi levels through the device.
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
10306 - Optics (including laser optics and quantum optics)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
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
8
Issue of the periodical within the volume
7
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
3221-3227
UT code for WoS article
001021459800001
EID of the result in the Scopus database
2-s2.0-85164932646