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Effects of energetics with {001} facet-dominant anatase TiO2 scaffold on electron transport in CH3NH3PbI3 perovskite solar cells

By Masato M. Maitani, Akito Tateyama, Pablo P. Boix, Guifang Han, Akio Nitta, Bunsho Ohtani, Nripan Mathews and Yuji Wada


The anatase titania with large fraction of {001} facet on the mesoscopic anatase titania scaffold in the hybrid perovskite solar cells exhibited higher photocurrent and open-circuit voltage. The higher performance with {001}-dominant anatase titania with the fraction of 74% were discussed with the characteristic electron transport properties in addition to the energy levels of trap states and conduction band as compared with those properties of conventional anatase titania scaffold. The resulted higher photocurrent and open-circuit voltage were attributed to the enhancement of the electron injection and suppression of the carrier recombination, respectively, at the titania/perovskite semiconductor interface.NRF (Natl Research Foundation, S’pore)MOE (Min. of Education, S’pore)Accepted versio

Topics: Engineering::Materials, TiO2, Mesoporous
Publisher: 'Elsevier BV'
Year: 2019
DOI identifier: 10.1016/j.electacta.2019.01.102
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