Interfacial engineering by using self-assembled monolayer in mesoporous perovskite solar cell

Bobo Li; Yani Chen; Ziqi Liang; Deqing Gao; Wei Huang

doi:10.1039/c5ra17129f

Interfacial engineering by using self-assembled monolayer in mesoporous perovskite solar cell

Bobo Li, Yani Chen, Ziqi Liang, Deqing Gao, Wei Huang

Research output: Contribution to journal › Article › peer-review

80 Scopus citations

Abstract

A self-assembled monolayer of 4-aminobenzoic acid (PABA) is prepared on the top of a mesoporous TiO₂ electron transfer layer. Through the full characterization of PABA-SAM modified TiO₂ and the above-prepared perovskite layer with Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), contact angle and photoluminescence, it was clear that the introduction of the SAM improved the interfacial compatibility and therefore the quality of the perovskite, thus leading to fewer traps, better carrier transport and good energy matching between the TiO₂ layer and the perovskite layer. The power conversion efficiency (PCE) of the perovskite device with interfacial modification was enhanced to 10.58% compared with that of the device without SAM.

Original language	English
Pages (from-to)	94290-94295
Number of pages	6
Journal	RSC Advances
Volume	5
Issue number	114
DOIs	https://doi.org/10.1039/c5ra17129f
State	Published - 3 Nov 2015
Externally published	Yes

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title = "Interfacial engineering by using self-assembled monolayer in mesoporous perovskite solar cell",

abstract = "A self-assembled monolayer of 4-aminobenzoic acid (PABA) is prepared on the top of a mesoporous TiO2 electron transfer layer. Through the full characterization of PABA-SAM modified TiO2 and the above-prepared perovskite layer with Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), contact angle and photoluminescence, it was clear that the introduction of the SAM improved the interfacial compatibility and therefore the quality of the perovskite, thus leading to fewer traps, better carrier transport and good energy matching between the TiO2 layer and the perovskite layer. The power conversion efficiency (PCE) of the perovskite device with interfacial modification was enhanced to 10.58% compared with that of the device without SAM.",

author = "Bobo Li and Yani Chen and Ziqi Liang and Deqing Gao and Wei Huang",

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doi = "10.1039/c5ra17129f",

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T1 - Interfacial engineering by using self-assembled monolayer in mesoporous perovskite solar cell

AU - Li, Bobo

AU - Chen, Yani

AU - Liang, Ziqi

AU - Gao, Deqing

AU - Huang, Wei

PY - 2015/11/3

Y1 - 2015/11/3

N2 - A self-assembled monolayer of 4-aminobenzoic acid (PABA) is prepared on the top of a mesoporous TiO2 electron transfer layer. Through the full characterization of PABA-SAM modified TiO2 and the above-prepared perovskite layer with Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), contact angle and photoluminescence, it was clear that the introduction of the SAM improved the interfacial compatibility and therefore the quality of the perovskite, thus leading to fewer traps, better carrier transport and good energy matching between the TiO2 layer and the perovskite layer. The power conversion efficiency (PCE) of the perovskite device with interfacial modification was enhanced to 10.58% compared with that of the device without SAM.

AB - A self-assembled monolayer of 4-aminobenzoic acid (PABA) is prepared on the top of a mesoporous TiO2 electron transfer layer. Through the full characterization of PABA-SAM modified TiO2 and the above-prepared perovskite layer with Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), contact angle and photoluminescence, it was clear that the introduction of the SAM improved the interfacial compatibility and therefore the quality of the perovskite, thus leading to fewer traps, better carrier transport and good energy matching between the TiO2 layer and the perovskite layer. The power conversion efficiency (PCE) of the perovskite device with interfacial modification was enhanced to 10.58% compared with that of the device without SAM.

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Interfacial engineering by using self-assembled monolayer in mesoporous perovskite solar cell

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