Publication: Enhancing violet photoluminescence of 2D perovskite thin films via swift cation doping and grain size reduction
Issued Date
2019-01-01
Resource Type
ISSN
18820786
18820778
18820778
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2-s2.0-85059858570
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Mahidol University
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SCOPUS
Bibliographic Citation
Applied Physics Express. Vol.12, No.1 (2019)
Suggested Citation
Paphada Kaewurai, Jitprabhat Ponchai, Koth Amratisha, Atittaya Naikaew, Khine Zin Swe, Kusuma Pinsuwan, Chirapa Boonthum, Somboon Sahasithiwat, Pongsakorn Kanjanaboos Enhancing violet photoluminescence of 2D perovskite thin films via swift cation doping and grain size reduction. Applied Physics Express. Vol.12, No.1 (2019). doi:10.7567/1882-0786/aaf286 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/50885
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Title
Enhancing violet photoluminescence of 2D perovskite thin films via swift cation doping and grain size reduction
Abstract
© 2018 The Japan Society of Applied Physics. Perovskite materials are emerging as suitable materials for low-cost, high efficiency optoelectronics. In this study, we reported the surface modification of 2D (PEA) 2 PbBr 4 for violet emission using PEG doping followed by a newly developed step called swift cation doping (SCD) where phenylethylammonium cations (PEA + ) in isopropanol (IPA) are abruptly applied during crystallization. 2D Perovskite doped with PEG using SCD resulted in smaller grain, smoother surface, higher film density, higher photoluminescence quantum efficiency, and longer average PL lifetime. These features are highly beneficial for photoluminescence application and can be easily applied to enhance other perovskite LED thin films.