Chemical passivation of the perovskite layer and its real-time effect on the device performance in back-contact perovskite solar cells

Askhat N. Jumabekov

doi:10.1116/6.0000481

Chemical passivation of the perovskite layer and its real-time effect on the device performance in back-contact perovskite solar cells

Askhat N. Jumabekov

CSIRO

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

8 Citations (Scopus)

Abstract

The back-contact architecture for perovskite solar cells (PSCs) offers the possibility of positioning both electrodes on one side of the absorber layer and shining light directly on the perovskite photoactive layer. This helps us to avoid the occurrence of transmission losses caused by the charge collecting transparent conductive oxide electrode in the conventional sandwich structure for PSCs. The back-contact device architecture is also useful for conducting fundamental studies as it has an exposed photoactive area, permitting in situ measurements on the effects of chemical treatment, passivation, and annealing. A successful application of back-contact PSCs in studying the effect of chemical passivation of the perovskite photo-absorber layer trap states with pyridine and its influence on the device performance have been studied. The real-time effect of pyridine vapor treatment on the device performance is visualized by monitoring the maximum power output of the devices under operation conditions. The device performance enhancement by ∼12% owing to the surface passivating effect of pyridine is demonstrated.

Original language	English
Article number	060401
Journal	Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
Volume	38
Issue number	6
DOIs	https://doi.org/10.1116/6.0000481
Publication status	Published - Dec 1 2020

Funding

The author acknowledges Office of the Chief Executive Postdoctoral Fellowship (CSIRO Manufacturing) funding from the Nazarbayev University Faculty Development Competitive Research Grant (Grant No. 110119FD4512) and the Young Scientist Grant of the Ministry of Education and Science of the Republic of Kazakhstan (Grant No. AP08052412). This work was performed in part at the Melbourne Centre for Nanofabrication (MCN) in the Victorian Node of the Australian National Fabrication Facility (ANFF). The author would like to thank Yinghong Hu from LMU Munich (Munich, Germany) for her help with XRD measurements.

ASJC Scopus subject areas

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films

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abstract = "The back-contact architecture for perovskite solar cells (PSCs) offers the possibility of positioning both electrodes on one side of the absorber layer and shining light directly on the perovskite photoactive layer. This helps us to avoid the occurrence of transmission losses caused by the charge collecting transparent conductive oxide electrode in the conventional sandwich structure for PSCs. The back-contact device architecture is also useful for conducting fundamental studies as it has an exposed photoactive area, permitting in situ measurements on the effects of chemical treatment, passivation, and annealing. A successful application of back-contact PSCs in studying the effect of chemical passivation of the perovskite photo-absorber layer trap states with pyridine and its influence on the device performance have been studied. The real-time effect of pyridine vapor treatment on the device performance is visualized by monitoring the maximum power output of the devices under operation conditions. The device performance enhancement by ∼12\% owing to the surface passivating effect of pyridine is demonstrated.",

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note = "Funding Information: The author acknowledges Office of the Chief Executive Postdoctoral Fellowship (CSIRO Manufacturing) funding from the Nazarbayev University Faculty Development Competitive Research Grant (Grant No. 110119FD4512) and the Young Scientist Grant of the Ministry of Education and Science of the Republic of Kazakhstan (Grant No. AP08052412). This work was performed in part at the Melbourne Centre for Nanofabrication (MCN) in the Victorian Node of the Australian National Fabrication Facility (ANFF). The author would like to thank Yinghong Hu from LMU Munich (Munich, Germany) for her help with XRD measurements. Publisher Copyright: {\textcopyright} 2020 Author(s).",

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Chemical passivation of the perovskite layer and its real-time effect on the device performance in back-contact perovskite solar cells

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