Browsing Journals and Magazines by Author "Nakanishi, S"

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Antiferroelectric Nature of CH3NH3PbI3-xClx Perovskite and Its Implication for Charge Separation in Perovskite Solar Cells

Sewvandi, GA; Kodera, K; Ma, H; Nakanishi, S; Feng, Qi [Article-Full-text]

Perovskite solar cells (PSCs) have been attracted scientific interest due to high performance. Some researchers have suggested anomalous behavior of PSCs to the polarizations due to the ion migration or ferroelectric ...
Antiferroelectric-to-Ferroelectric Switching in CH3NH3PbI3 Perovskite and Its Potential Role in Effective Charge Separation in Perovskite Solar Cells

Sewvandi, GA; Hu, D; Chen, C; Ma, H; Kusunose, T; Tanaka, Y; Nakanishi, S; Feng, Q [Article-Full-text]

Perovskite solar cells (PSCs) often suffer from large performance variations which impede to define a clear charge-transfer mechanism. Ferroelectric polarization is measured numerically using CH3NH3PbI3 (MAPbI3) pellets ...
Facile size-controllable synthesis process, bandgap blue shift, and enhanced photocatalytic performances of [111]-faceted anatase TiO2 nanocrystals

Xu, L; Sewvandi, GA; Uemura, S; Kusunose, T; Nakanishi, S; Feng, Q [Article-Full-text]

The facet exposed on a nanocrystal surface strongly affects the physicochemical properties of the crystal surface but it is not easy to control in the synthesis process. Herein we demonstrate a facile synthesis process for ...

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