Publication: Reconditioning perovskite films in vapor environments through repeated cation doping
Issued Date
2018-06-01
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ISSN
18820786
18820778
18820778
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2-s2.0-85047902240
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Mahidol University
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SCOPUS
Bibliographic Citation
Applied Physics Express. Vol.11, No.6 (2018)
Suggested Citation
Chirapa Boonthum, Kusuma Pinsuwan, Jitprabhat Ponchai, Toemsak Srikhirin, Pongsakorn Kanjanaboos Reconditioning perovskite films in vapor environments through repeated cation doping. Applied Physics Express. Vol.11, No.6 (2018). doi:10.7567/APEX.11.065503 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/45805
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Title
Reconditioning perovskite films in vapor environments through repeated cation doping
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Abstract
© 2018 The Japan Society of Applied Physics. Perovskites have attracted considerable attention for application as high-efficiency photovoltaic devices owing to their low-cost and lowtemperature fabrication. A good surface and high crystallinity are necessary for high-performance devices. We examine the negative effects of chemical ambiences on the perovskite crystal formation and morphology. The repeated cation doping (RCD) technique was developed to remedy these issues by gradually dropping methylammonium ions on top of about-to-form perovskite surfaces to cause recrystallization. RCD promotes pinhole-free, compact, and polygonal-like surfaces under various vapor conditions. Furthermore, it enhances the electronic properties and crystallization. The benefits of RCD extend beyond perovskites under vapor ambiences, as it can improve regular and wasted perovskites.