Alleviate the J-V hysteresis of carbon-based perovskite solar cells via introducing additional methylammonium chloride into MAPbI3 precursorElectronic supplementary information (ESI) available: IPCE spectra of the champion devices. See DOI: 10.1039/c8ra04347g
The hysteretic phenomenon commonly exists in the J - V curves of perovskite solar cells with different structures, especially for carbon-based mesoscopic perovskite solar cells without hole-conductor (carbon-based PSCs). By adding moderate amounts of methylammonium chloride (MACl) into MAPbI 3 perov...
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Format | Journal Article |
Language | English |
Published |
15.10.2018
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Abstract | The hysteretic phenomenon commonly exists in the
J
-
V
curves of perovskite solar cells with different structures, especially for carbon-based mesoscopic perovskite solar cells without hole-conductor (carbon-based PSCs). By adding moderate amounts of methylammonium chloride (MACl) into MAPbI
3
perovskite precursor, we found the
J
-
V
hysteresis of carbon-based PSCs could be significantly alleviated and the crystallinity of MAPbI
3
perovskite could also be influenced. With the increasing amount of MACl, MAPbI
3
perovskite showed better and better crystallinity until the MACl came to 0.45 M. The champion device with 0.45 M of additional MACl exhibited a preferable PCE of 14.27% for reverse-scan (RS) and 14.50% for forward-scan (FS), significantly higher than that of the pristine device (8.74% for RS and 4.80% for FS). What's more, the
J
-
V
hysteretic index of the device gradually decreased along with the increasing amount of MACl, and kept at low value even when the crystallinity of MAPbI
3
perovskite became poor. Through XRD and PL analysis, we demonstrated that the recombination rate of the accumulated charges at the perovskite/TiO
2
interface is the main reason for photocurrent hysteresis in carbon-based PSCs. High quality of perovskite crystals is an important contributing factor for high-performance PSCs with low hysteresis, but there is no necessary correlation between low hysteresis and good crystallinity. This research presents an effective way to fabricate carbon-based PSCs with low-hysteresis, and at the same time, provides evidence for investigating the origin of
J
-
V
hysteresis of PSCs.
The hysteretic phenomenon commonly exists in the
J
-
V
curves of perovskite solar cells with different structures, especially for carbon-based mesoscopic perovskite solar cells without hole-conductor (carbon-based PSCs). |
---|---|
AbstractList | The hysteretic phenomenon commonly exists in the
J
-
V
curves of perovskite solar cells with different structures, especially for carbon-based mesoscopic perovskite solar cells without hole-conductor (carbon-based PSCs). By adding moderate amounts of methylammonium chloride (MACl) into MAPbI
3
perovskite precursor, we found the
J
-
V
hysteresis of carbon-based PSCs could be significantly alleviated and the crystallinity of MAPbI
3
perovskite could also be influenced. With the increasing amount of MACl, MAPbI
3
perovskite showed better and better crystallinity until the MACl came to 0.45 M. The champion device with 0.45 M of additional MACl exhibited a preferable PCE of 14.27% for reverse-scan (RS) and 14.50% for forward-scan (FS), significantly higher than that of the pristine device (8.74% for RS and 4.80% for FS). What's more, the
J
-
V
hysteretic index of the device gradually decreased along with the increasing amount of MACl, and kept at low value even when the crystallinity of MAPbI
3
perovskite became poor. Through XRD and PL analysis, we demonstrated that the recombination rate of the accumulated charges at the perovskite/TiO
2
interface is the main reason for photocurrent hysteresis in carbon-based PSCs. High quality of perovskite crystals is an important contributing factor for high-performance PSCs with low hysteresis, but there is no necessary correlation between low hysteresis and good crystallinity. This research presents an effective way to fabricate carbon-based PSCs with low-hysteresis, and at the same time, provides evidence for investigating the origin of
J
-
V
hysteresis of PSCs.
The hysteretic phenomenon commonly exists in the
J
-
V
curves of perovskite solar cells with different structures, especially for carbon-based mesoscopic perovskite solar cells without hole-conductor (carbon-based PSCs). |
Author | Ku, Zhiliang Zhang, Qi Huang, Fuzhi Zhong, Jie Cheng, Yi-bing Liu, Xingyu Peng, Yong Jiang, Huirong Chai, Nianyao |
AuthorAffiliation | School of Aerospace, Transport and Manufacturing Hubei Key Laboratory of Low Dimensional Optoelectronic Material and Devices Hubei University of Arts and Science Wuhan University of Technology International School of Materials Science and Engineering Cranfield University State Key Laboratory of Advanced Technologies for Materials Synthesis and Processing |
AuthorAffiliation_xml | – name: Hubei Key Laboratory of Low Dimensional Optoelectronic Material and Devices – name: Hubei University of Arts and Science – name: International School of Materials Science and Engineering – name: School of Aerospace, Transport and Manufacturing – name: State Key Laboratory of Advanced Technologies for Materials Synthesis and Processing – name: Cranfield University – name: Wuhan University of Technology |
Author_xml | – sequence: 1 givenname: Huirong surname: Jiang fullname: Jiang, Huirong – sequence: 2 givenname: Xingyu surname: Liu fullname: Liu, Xingyu – sequence: 3 givenname: Nianyao surname: Chai fullname: Chai, Nianyao – sequence: 4 givenname: Fuzhi surname: Huang fullname: Huang, Fuzhi – sequence: 5 givenname: Yong surname: Peng fullname: Peng, Yong – sequence: 6 givenname: Jie surname: Zhong fullname: Zhong, Jie – sequence: 7 givenname: Qi surname: Zhang fullname: Zhang, Qi – sequence: 8 givenname: Zhiliang surname: Ku fullname: Ku, Zhiliang – sequence: 9 givenname: Yi-bing surname: Cheng fullname: Cheng, Yi-bing |
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J
-
V
curves of perovskite solar cells with different structures, especially for carbon-based mesoscopic... |
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Title | Alleviate the J-V hysteresis of carbon-based perovskite solar cells via introducing additional methylammonium chloride into MAPbI3 precursorElectronic supplementary information (ESI) available: IPCE spectra of the champion devices. See DOI: 10.1039/c8ra04347g |
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