Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 1,346

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

Conformal quantum dot–SnO 2 layers as electron transporters for efficient perovskite solar cells

Open access
Kim, Minjin, Jeong, Jaeki, Lu, Haizhou, Lee, Tae Kyung, Eickemeyer, Felix T., Liu, Yuhang, Choi, In Woo, Choi, Seung Ju, Jo, Yimhyun, Kim, Hak-Beom, Mo, Sung-In, Kim, Young-Ki, Lee, Heunjeong, An, Na Gyeong, Cho, Shinuk, Tress, Wolfgang R., Zakeeruddin, Shaik M., Hagfeldt, Anders, Kim, Jin Young, Grätzel, Michael, Kim, Dong Suk·2022·Science

Abstract

Improvements to perovskite solar cells (PSCs) have focused on increasing their power conversion efficiency (PCE) and operational stability and maintaining high performance upon scale-up to module sizes. We report that replacing the commonly used mesoporous–titanium dioxide electron transport layer (ETL) with a thin layer of polyacrylic acid–stabilized tin(IV) oxide quantum dots (paa-QD-SnO 2 ) on the compact–titanium dioxide enhanced light capture and largely suppressed nonradiative recombination at the ETL–perovskite interface. The use of paa-QD-SnO 2 as electron-selective contact enabled PSCs (0.08 square centimeters) with a PCE of 25.7% (certified 25.4%) and high operational stability and facilitated the scale-up of the PSCs to larger areas. PCEs of 23.3, 21.7, and 20.6% were achieved for PSCs with active areas of 1, 20, and 64 square centimeters, respectively.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1126/science.abh1885

Cites

1 of 1 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Show all 1 references

Cited by

See all 1,346

Metadata

Authors
Kim, M., Jeong, J., Lu, H., Lee, T. K., Eickemeyer, F. T., Liu, Y., Choi, I. W., Choi, S. J., Jo, Y., Kim, H.-B., Mo, S.-I., Kim, Y.-K., Lee, H., An, N. G., Cho, S., Tress, W. R., Zakeeruddin, S. M., Hagfeldt, A., Kim, J. Y., Grätzel, M., & Kim, D. S.
Venue
Science
Published
2022-01-21
Volume
375
Issue
6578
Pages
302-306
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W4206188804
Cited by
1,346
References
1
FWCI
84.18
Type
journal article
Language
en
Open access
green

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: Conformal quantum dot–SnO 2 layers as electron transporters for efficient perovskite solar cells. https://app.cochat.ai/papers/10.1126/science.abh1885
The paper
Kim, M., Jeong, J., Lu, H., Lee, T. K., Eickemeyer, F. T., Liu, Y., Choi, I. W., Choi, S. J., Jo, Y., Kim, H.-B., Mo, S.-I., Kim, Y.-K., Lee, H., An, N. G., Cho, S., Tress, W. R., Zakeeruddin, S. M., Hagfeldt, A., Kim, J. Y., . . . Kim, D. S. (2022). Conformal quantum dot–SnO 2 layers as electron transporters for efficient perovskite solar cells. Science. https://doi.org/10.1126/science.abh1885

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.