Multi-functional Strategy: Ammonium Citrate-Modified SnO2ETL for Efficient and Stable Perovskite Solar Cells
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F22%3A43924191" target="_blank" >RIV/60461373:22310/22:43924191 - isvavai.cz</a>
Result on the web
<a href="https://pubs.acs.org/doi/full/10.1021/acsami.2c13309" target="_blank" >https://pubs.acs.org/doi/full/10.1021/acsami.2c13309</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsami.2c13309" target="_blank" >10.1021/acsami.2c13309</a>
Alternative languages
Result language
angličtina
Original language name
Multi-functional Strategy: Ammonium Citrate-Modified SnO2ETL for Efficient and Stable Perovskite Solar Cells
Original language description
The tin oxide (SnO2) electron transport layer (ETL) plays a crucial role in perovskite solar cells (PSCs). However, the heterogeneous dispersion of commercial SnO2 colloidal precursors is far from optimized, resulting in dissatisfied device performance with SnO2 ETL. Herein, a multifunctional modification material, ammonium citrate (TAC), is used to modify the SnO2 ETL, bringing four benefits: (1) due to the electrostatic interaction between TAC molecules and SnO2 colloidal particles, more uniformly dispersed colloidal particles are obtained; (2) the TAC molecules distributed on the surface of SnO2 provide nucleation sites for the perovskite film growth, promoting the vertical growth of the perovskite crystal; (3) TAC-doped SnO2 shows higher electron conductivity and better film quality than pristine SnO2 while offering better energy-level alignment with the perovskite layer; and (4) TAC has functional groups of C═O and N-H containing lone pair electrons, which can passivate the defects on the surface of SnO2 and perovskite films through chemical bonding and inhibit the device hysteresis. In the end, the device based on TAC-doped ETL achieved an increased power conversion efficiency (PCE) of 21.58 from 19.75% of the reference without such treatment. Meanwhile, the PSCs using the TAC-doped SnO2 as the ETL maintained 88% of their initial PCE after being stored for about 1000 h under dark conditions and controlled RH of 10-25%. © 2022 American Chemical Society.
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
10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ACS Applied Materials and Interfaces
ISSN
1944-8244
e-ISSN
1944-8252
Volume of the periodical
14
Issue of the periodical within the volume
38
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
43975-43986
UT code for WoS article
000856252400001
EID of the result in the Scopus database
2-s2.0-85139088508