Room-Temperature Atomic-Layer-Deposited Al2O3 Improves the Efficiency of Perovskite Solar Cells over Time
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10389467" target="_blank" >RIV/00216208:11320/18:10389467 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1002/cssc.201801434" target="_blank" >https://doi.org/10.1002/cssc.201801434</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/cssc.201801434" target="_blank" >10.1002/cssc.201801434</a>
Alternative languages
Result language
angličtina
Original language name
Room-Temperature Atomic-Layer-Deposited Al2O3 Improves the Efficiency of Perovskite Solar Cells over Time
Original language description
Electrical characterisation of perovskite solar cells consisting of room-temperature atomic-layer-deposited aluminium oxide (RT-ALD-Al2O3) film on top of a methyl ammonium lead triiodide (CH3NH3PbI3) absorber showed excellent stability of the power conversion efficiency (PCE) over a long time. Under the same environmental conditions (for 355d), the average PCE of solar cells without the ALD layer decreased from 13.6 to 9.6%, whereas that of solar cells containing 9 ALD cycles of depositing RT-ALD-Al2O3 on top of CH3NH3PbI3 increased from 9.4 to 10.8%. Spectromicroscopic investigations of the ALD/perovskite interface revealed that the maximum PCE with the ALD layer is obtained when the so-called perovskite cleaning process induced by ALD precursors is complete. The PCE enhancement over time is probably related to a self-healing process induced by the RT-ALD-Al2O3 film. This work may provide a new direction for further improving the long-term stability and performance of perovskite solar cells.
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
10305 - Fluids and plasma physics (including surface physics)
Result continuities
Project
<a href="/en/project/LM2015057" target="_blank" >LM2015057: Surface Physics Laboratory – Materials Science Beamline</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ChemSusChem
ISSN
1864-5631
e-ISSN
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Volume of the periodical
11
Issue of the periodical within the volume
20
Country of publishing house
DE - GERMANY
Number of pages
9
Pages from-to
3640-3648
UT code for WoS article
000448064300012
EID of the result in the Scopus database
2-s2.0-85053896746