DOI: 10.1002/anie.201405176. High‐Performance Hole‐Extraction Layer of Sol–Gel‐Processed NiO Nanocrystals for Inverted Planar Perovskite Solar Cells

High‐Performance Hole‐Extraction Layer of Sol–Gel‐Processed NiO Nanocrystals for Inverted Planar Perovskite Solar Cells

10.1002/anie.201405176

Crossref journal-article

Wiley

Angewandte Chemie International Edition (311)

Abstract

AbstractHybrid organic/inorganic perovskite solar cells have been rapidly evolving with spectacular successes in both nanostructured and thin‐film versions. Herein, we report the use of a simple sol–gel‐processed NiO nanocrystal (NC) layer as the hole‐transport layer in an inverted perovskite solar cell. The thin NiO NC film with a faceted and corrugated surface enabled the formation of a continuous and compact layer of well‐crystallized CH3NH3PbI3 in a two‐step solution process. The hole‐extraction and ‐transport capabilities of this film interfaced with the CH3NH3PbI3 film were higher than those of organic PEDOT:PSS layers. The cell with a NiO NC film with a thickness of 30–40 nm exhibited the best performance, as a thinner layer led to a higher leakage current, whereas a thicker layer resulted in a higher series resistance. With the NiO film, we observed a cell efficiency of 9.11 %, which is by far the highest reported for planar perovskite solar cells based on an inorganic hole‐extracting layer.

Bibliography

Zhu, Z., Bai, Y., Zhang, T., Liu, Z., Long, X., Wei, Z., Wang, Z., Zhang, L., Wang, J., Yan, F., & Yang, S. (2014). HighâPerformance HoleâExtraction Layer of SolâGelâProcessed NiO Nanocrystals for Inverted Planar Perovskite Solar Cells. Angewandte Chemie International Edition, 53(46), 12571â12575. Portico.

Authors 11

Zonglong Zhu (first)
Yang Bai (additional)
Teng Zhang (additional)
Zhike Liu (additional)
Xia Long (additional)
Zhanhua Wei (additional)
Zilong Wang (additional)
Lixia Zhang (additional)
Jiannong Wang (additional)
Feng Yan (additional)
Shihe Yang (additional)

References 32 Referenced 372

10.1038/nature12557
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H. Tian B. Xu H. Chen E. M. J. Johansson G. Boschloo ChemSusChem.2014 DOI:.
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10.1063/1.116313
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Dates

Type	When
Created	11 years, 1 month ago (July 15, 2014, 4:32 p.m.)
Deposited	1 year, 11 months ago (Sept. 12, 2023, 8:50 p.m.)
Indexed	1 day, 9 hours ago (Sept. 3, 2025, 7:15 a.m.)
Issued	11 years, 1 month ago (July 15, 2014)
Published	11 years, 1 month ago (July 15, 2014)
Published Online	11 years, 1 month ago (July 15, 2014)
Published Print	10 years, 9 months ago (Nov. 10, 2014)

Funders 0

None

BibTeX

@article{Zhu_2014, title={High‐Performance Hole‐Extraction Layer of Sol–Gel‐Processed NiO Nanocrystals for Inverted Planar Perovskite Solar Cells}, volume={53}, ISSN={1521-3773}, url={http://dx.doi.org/10.1002/anie.201405176}, DOI={10.1002/anie.201405176}, number={46}, journal={Angewandte Chemie International Edition}, publisher={Wiley}, author={Zhu, Zonglong and Bai, Yang and Zhang, Teng and Liu, Zhike and Long, Xia and Wei, Zhanhua and Wang, Zilong and Zhang, Lixia and Wang, Jiannong and Yan, Feng and Yang, Shihe}, year={2014}, month=jul, pages={12571–12575} }

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