Effect of lead thiocyanate ions on performance of tin-based perovskite solar cells
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F20%3A00523659" target="_blank" >RIV/61388955:_____/20:00523659 - isvavai.cz</a>
Result on the web
<a href="http://hdl.handle.net/11104/0307976" target="_blank" >http://hdl.handle.net/11104/0307976</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jpowsour.2020.228067" target="_blank" >10.1016/j.jpowsour.2020.228067</a>
Alternative languages
Result language
angličtina
Original language name
Effect of lead thiocyanate ions on performance of tin-based perovskite solar cells
Original language description
Perovskite solar cells (PSCs) have a high efficiency, and their price is relatively low. Thus, they are attracting considerable attention as a substitute for expensive Si solar cells. However, highly efficient PSCs are not ecofriendly, because they contain toxic metals such as Pb. Therefore, we develop Sn-based PSCs to reduce the Pb content. First, 11 different perovskite precursors are synthesized by increasing the amount of Pb(SCN)2 from 0 to 0.5 M in CH(NH2)2SnI3. Then, PSCs are fabricated, and their characteristics are compared. Scanning electron microscopy confirms that the proper amount of Pb(SCN)2 uniformizes the grain size of the perovskite layer and reduces the amounts of pinholes. The crystallization and optical absorption of each perovskite layer are confirmed by X-ray diffraction analysis and ultraviolet–visible spectra, and the characteristics of the PSCs are confirmed by the current density–voltage graph. The Sn-based PSCs with 0.25 M Pb(SCN)2 exhibit a high efficiency of 8.4%, which is significantly higher than that (1.6%) of Sn-based PSCs without Pb(SCN)2. The calculated Pb concentration of CH3NH3PbI3 is 0.37 g/mL, while that of CH(NH2)2SnI3 containing Pb(SCN)2 is 0.08 g/mL. These results indicate the possibility of producing highly efficient PSCs with reduced lead content.
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
<a href="/en/project/8F17001" target="_blank" >8F17001: Pb-free Perovskite solar cells with Long-term stability</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
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
Journal of Power Sources
ISSN
0378-7753
e-ISSN
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Volume of the periodical
458
Issue of the periodical within the volume
MAY 2020
Country of publishing house
CH - SWITZERLAND
Number of pages
8
Pages from-to
228067
UT code for WoS article
000523643100015
EID of the result in the Scopus database
2-s2.0-85082190323