dc.contributor.authorYang, Hong Bin
dc.contributor.authorLiu, Bin
dc.contributor.authorKhoo, Si Yun
dc.contributor.authorZhu, Lin Nan
dc.contributor.authorGuo, Chun Xian
dc.contributor.authorDong, Yong Qiang
dc.contributor.authorLi, Chang Ming
dc.identifier.citationYang, H. B., Liu, B., Khoo, S. Y., Zhu, L. N., Guo, C. X., Dong, Y. Q., et al. (2014). One-Step Fabrication of Unique Mesoporous NiO Hollow Sphere Film on FTO for High-Performance P-Type Dye-Sensitized Solar Cells. Advanced Materials Interfaces, 1(3), 1300110-.en_US
dc.description.abstractP-type dye sensitized solar cells (p-DSCs) deliver much lower overall efficiency than their inverse model, n-DSCs. However, they have fundamental and practical significance, in particular, their tandem structured solar cells with both p- and n-photoelectrodes could offer great potential to significantly improve the efficiency of existing solar cells. A facile and environmentally friendly method is developed to directly one-step grow hollow NiO spherical structures on fluorine-doped tin oxide (FTO) substrate, in which a Ni2+ and polymer complex spherical structure is self-constructed through a controlled solvent evaporation process, followed by calcination-converting to a unique NiO hollow sphere film. The prepared material is further used as a photocathode in p-type dye sensitized solar cells, resulting in 41% increase of an open-circuit voltage and 18% enhancement of power conversion efficiency than NiO nanoparticles photocathode. The improved performance can be ascribed to suppressed charge recombination at the photocathode/electrolyte interface. This template-free approach could be universally used to fabricate other nanostructured hollow spheres for a wide range of energy conversion applications such as electrochemical capacitors, chemical sensors, and electrochromic devices.en_US
dc.description.sponsorshipASTAR (Agency for Sci., Tech. and Research, S’pore)en_US
dc.relation.ispartofseriesAdvanced Materials Interfacesen_US
dc.rights© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.en_US
dc.subjecthollow sphereen_US
dc.subjectdye-sensitized solar cellsen_US
dc.titleOne-Step Fabrication of Unique Mesoporous NiO Hollow Sphere Film on FTO for High-Performance P-Type Dye-Sensitized Solar Cellsen_US
dc.typeJournal Article
dc.contributor.schoolSchool of Chemical and Biomedical Engineeringen_US

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