Improvement of the interfacial contact between zinc oxide and a mixed cation perovskite using carbon nanotubes for ambient-air-processed perovskite solar cells
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F20%3APU138269" target="_blank" >RIV/00216305:26310/20:PU138269 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1039/D0NJ04656F" target="_blank" >https://doi.org/10.1039/D0NJ04656F</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/d0nj04656f" target="_blank" >10.1039/d0nj04656f</a>
Alternative languages
Result language
angličtina
Original language name
Improvement of the interfacial contact between zinc oxide and a mixed cation perovskite using carbon nanotubes for ambient-air-processed perovskite solar cells
Original language description
The increasing consideration toward thin-film organic-inorganic halide perovskite solar cells (PSCs) is because of their high-power conversion efficiency that arises from several advantages of perovskite materials, including solution processability and low fabrication cost. However, we have not been able to maximize these advantages in the existing halide perovskite (PVK) solar cell technology as a consequence of structural and material limitations. Herein, we have developed a solution to these drawbacks by substituting the conventional metal-oxide photoelectrodes with materials doped with carbon nanotubes (CNTs). The mixed cation PSCs fabricated in ambient air were unstable with the PVK on top of zinc oxide (ZnO) due to the presence of hydroxyl groups on the ZnO surface. To suppress the hydroxyl groups, we incorporated CNTs in the ZnO film. On adding CNTs, the ZnO film showed more significant charge extraction, with the recombination rate in the PSC reducing due to higher conductivity and lower trap states in CNT-doped ZnO. Our results demonstrate that the optimized PSC based on the CNT additive showed PCE up to 15%. With this surface modification approach, we could show hysteresis-free and stable PSCs, with lesser decomposition after similar to 2000 h of storage in a moist ambience. This work presents novelty in the material, cost, and assembly of stable and effective perovskite solar cells.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
—
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
NEW JOURNAL OF CHEMISTRY
ISSN
1144-0546
e-ISSN
1369-9261
Volume of the periodical
44
Issue of the periodical within the volume
45
Country of publishing house
GB - UNITED KINGDOM
Number of pages
10
Pages from-to
19802-19811
UT code for WoS article
000594503300036
EID of the result in the Scopus database
—