Chen, Y., Li, N., Wang, L., Li, L., Xu, Z., Jiao, H., Liu, P., Zhu, C., Zai, H., Sun, M., Zou, W., Zhang, S., Xing, G., Liu, X., Wang, J., Li, D., Huang, B., Chen, Q., & Zhou, H. (2019). Impacts of alkaline on the defects property and crystallization kinetics in perovskite solar cells. Nature Communications, 10(1), Article 1112. https://doi.org/10.1038/s41467-019-09093-1
Chen, Yihua ; Li, Nengxu ; Wang, Ligang et al. / Impacts of alkaline on the defects property and crystallization kinetics in perovskite solar cells. In: Nature Communications. 2019 ; Vol. 10, No. 1.
@article{88b0e9e321df4ee39642954827e602dd,
title = "Impacts of alkaline on the defects property and crystallization kinetics in perovskite solar cells",
abstract = "Further minimizing the defect state density in the semiconducting absorber is vital to boost the power conversion efficiency of solar cells approaching Shockley-Queisser limit. However, it lacks a general strategy to control the precursor chemistry for defects density reduction in the family of iodine based perovskite. Here the alkaline environment in precursor solution is carefully investigated as an effective parameter to suppress the incident iodine and affects the crystallization kinetics during film fabrication, via rationale adjustment of the alkalinity of additives. Especially, a {\textquoteleft}residual free{\textquoteright} weak alkaline is proposed not only to shrink the bandgap of the absorber by modulating the stoichiometry of organic cation, but also to improve the open circuit voltage in the resultant device. Consequently, the certified efficiency of 20.87\% (Newport) is achieved with one of the smallest voltage deficits of 413 mV in the planar heterojunction perovskite solar cell.",
author = "Yihua Chen and Nengxu Li and Ligang Wang and Liang Li and Ziqi Xu and Haoyang Jiao and Pengfei Liu and Cheng Zhu and Huachao Zai and Mingzi Sun and Wei Zou and Shuai Zhang and Guichuan Xing and Xinfeng Liu and Jianpu Wang and Dongdong Li and Bolong Huang and Qi Chen and Huanping Zhou",
note = "Publisher Copyright: {\textcopyright} 2019, The Author(s).",
year = "2019",
month = dec,
day = "1",
doi = "10.1038/s41467-019-09093-1",
language = "English",
volume = "10",
journal = "Nature Communications",
issn = "2041-1723",
publisher = "Nature Publishing Group",
number = "1",
}
Chen, Y, Li, N, Wang, L, Li, L, Xu, Z, Jiao, H, Liu, P, Zhu, C, Zai, H, Sun, M, Zou, W, Zhang, S, Xing, G, Liu, X, Wang, J, Li, D, Huang, B, Chen, Q & Zhou, H 2019, 'Impacts of alkaline on the defects property and crystallization kinetics in perovskite solar cells', Nature Communications, vol. 10, no. 1, 1112. https://doi.org/10.1038/s41467-019-09093-1
Impacts of alkaline on the defects property and crystallization kinetics in perovskite solar cells. /
Chen, Yihua; Li, Nengxu; Wang, Ligang et al.
In:
Nature Communications, Vol. 10, No. 1, 1112, 01.12.2019.
Research output: Contribution to journal › Article › peer-review
TY - JOUR
T1 - Impacts of alkaline on the defects property and crystallization kinetics in perovskite solar cells
AU - Chen, Yihua
AU - Li, Nengxu
AU - Wang, Ligang
AU - Li, Liang
AU - Xu, Ziqi
AU - Jiao, Haoyang
AU - Liu, Pengfei
AU - Zhu, Cheng
AU - Zai, Huachao
AU - Sun, Mingzi
AU - Zou, Wei
AU - Zhang, Shuai
AU - Xing, Guichuan
AU - Liu, Xinfeng
AU - Wang, Jianpu
AU - Li, Dongdong
AU - Huang, Bolong
AU - Chen, Qi
AU - Zhou, Huanping
N1 - Publisher Copyright:
© 2019, The Author(s).
PY - 2019/12/1
Y1 - 2019/12/1
N2 - Further minimizing the defect state density in the semiconducting absorber is vital to boost the power conversion efficiency of solar cells approaching Shockley-Queisser limit. However, it lacks a general strategy to control the precursor chemistry for defects density reduction in the family of iodine based perovskite. Here the alkaline environment in precursor solution is carefully investigated as an effective parameter to suppress the incident iodine and affects the crystallization kinetics during film fabrication, via rationale adjustment of the alkalinity of additives. Especially, a ‘residual free’ weak alkaline is proposed not only to shrink the bandgap of the absorber by modulating the stoichiometry of organic cation, but also to improve the open circuit voltage in the resultant device. Consequently, the certified efficiency of 20.87% (Newport) is achieved with one of the smallest voltage deficits of 413 mV in the planar heterojunction perovskite solar cell.
AB - Further minimizing the defect state density in the semiconducting absorber is vital to boost the power conversion efficiency of solar cells approaching Shockley-Queisser limit. However, it lacks a general strategy to control the precursor chemistry for defects density reduction in the family of iodine based perovskite. Here the alkaline environment in precursor solution is carefully investigated as an effective parameter to suppress the incident iodine and affects the crystallization kinetics during film fabrication, via rationale adjustment of the alkalinity of additives. Especially, a ‘residual free’ weak alkaline is proposed not only to shrink the bandgap of the absorber by modulating the stoichiometry of organic cation, but also to improve the open circuit voltage in the resultant device. Consequently, the certified efficiency of 20.87% (Newport) is achieved with one of the smallest voltage deficits of 413 mV in the planar heterojunction perovskite solar cell.
UR - http://www.scopus.com/inward/record.url?scp=85062591520&partnerID=8YFLogxK
U2 - 10.1038/s41467-019-09093-1
DO - 10.1038/s41467-019-09093-1
M3 - Article
C2 - 30846692
AN - SCOPUS:85062591520
SN - 2041-1723
VL - 10
JO - Nature Communications
JF - Nature Communications
IS - 1
M1 - 1112
ER -
Chen Y, Li N, Wang L, Li L, Xu Z, Jiao H et al. Impacts of alkaline on the defects property and crystallization kinetics in perovskite solar cells. Nature Communications. 2019 Dec 1;10(1):1112. doi: 10.1038/s41467-019-09093-1
