Ligand-bridged charge extraction and enhanced quantum efficiency enable efficient n-i-p perovskite/silicon tandem solar cells
Type
ArticleAuthors
Aydin, Erkan
Liu, Jiang

Ugur, Esma

Azmi, Randi

Harrison, George T.
Hou, Yi
Chen, Bin
Zhumagali, Shynggys

de Bastiani, Michele
Wang, Mingcong

Raja, Waseem

Allen, Thomas
Rehman, Atteq Ur
Subbiah, Anand Selvin
Babics, Maxime

Babayigit, Aslihan
Isikgor, Furkan Halis

Wang, Kai
Van Kerschaver, Emmanuel
Tsetseris, Leonidas

Sargent, Edward H.
Laquai, Frédéric

De Wolf, Stefaan

KAUST Department
KAUST Solar Center (KSC)Material Science and Engineering Program
Physical Science and Engineering (PSE) Division
KAUST Grant Number
IED OSR-2019-4208OSR-CARF/CCF-3079
Date
2021Submitted Date
2021-04-22Permanent link to this record
http://hdl.handle.net/10754/670497
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Show full item recordAbstract
Translating the high power conversion efficiencies of single-junction perovskite solar cells in their classic, non-inverted (n–i–p) architecture to efficient monolithic n–i–p perovskite/silicon tandem solar cells with high current densities has been a persistent challenge due to the lack of low-temperature processable, chemically-insoluble contact materials with appropriate polarity and sufficient optical transparency. To address this, we developed sputtered amorphous niobium oxide (a-NbOx) with ligand-bridged C60 as an efficient electron-selective contact, deposited on the textured-silicon bottom cell. For the sunward, hole-selective contact we implemented a stack of molecularly doped broadband transparent evaporated 2,2′,7,7′-tetra(N,N-di-p-tolyl)amino-9,9-spirobifluorene (spiro-TTB) and atomic layer deposited vanadium oxide, which further enhances the device quantum efficiency. Combining these contact materials with two-dimensional perovskite passivation on the micrometer-thick solution-processed perovskite top cell yields 27% efficient monolithic n–i–p perovskite/silicon tandem solar cells, which represents one of the highest power conversion efficiencies reported on pyramidal textured crystalline silicon bottom cells, and the highest with this polarity.Citation
Aydin, E., Liu, J., Ugur, E., Azmi, R., Harrison, G. T., Hou, Y., … De Wolf, S. (2021). Ligand-bridged charge extraction and enhanced quantum efficiency enable efficient n–i–p perovskite/silicon tandem solar cells. Energy & Environmental Science. doi:10.1039/d1ee01206aSponsors
The authors would like to thanks to Nini Wei for the TEM images; funding: the research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST) under award no. OSR-CARF/CCF-3079 and award no. IED OSR-2019-4208.Publisher
Royal Society of Chemistry (RSC)Journal
ENERGY & ENVIRONMENTAL SCIENCEAdditional Links
http://xlink.rsc.org/?DOI=D1EE01206Aae974a485f413a2113503eed53cd6c53
10.1039/d1ee01206a
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