Topic
Ionic conductivity
About: Ionic conductivity is a research topic. Over the lifetime, 19412 publications have been published within this topic receiving 519167 citations.
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TL;DR: Li 7−−x La 3 Zr 2 O 12−−−0.5x (LLZ) ceramics with garnet-type structure were prepared via the conventional solid-state reaction method.
142 citations
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TL;DR: In this paper, density functional theory calculations of both the diffusion barriers and the formation energies for native defects (VI+, MAi+, VMA-, and Ii)-were performed for CH3NH3PbI3-based solar cells.
Abstract: CH3NH3PbI3-based solar cells have shown remarkable progress in recent years but have also suffered from structural, electrical, and chemical instabilities related to the soft lattices and the chemistry of these halides One of the instabilities is ion migration, which may cause current–voltage hysteresis in CH3NH3PbI3 solar cells Significant ion diffusion and ionic conductivity in CH3NH3PbI3 have been reported; their nature, however, remain controversial In the literature, the use of different experimental techniques leads to the observation of different diffusing ions (either iodine or CH3NH3 ion); the calculated diffusion barriers for native defects scatter in a wide range; the calculated defect formation energies also differ qualitatively These controversies hinder the understanding and the control of the ion migration in CH3NH3PbI3 In this paper, we show density functional theory calculations of both the diffusion barriers and the formation energies for native defects (VI+, MAi+, VMA–, and Ii–) an
142 citations
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TL;DR: In this paper, Nitrogen-doped reduced graphene oxide aerogel with high porosity and ionic conductivity was synthesized by a hydrothermal reduction of graphene oxide with hydrazine and following freezing-dry method.
142 citations
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TL;DR: In this article, the structure and complexation of polyvinyl alcohol (PVA) and polymethyl methacrylate (PMMA) are studied by X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy.
142 citations
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TL;DR: In this paper, the effects of nano-particle oxide fillers including TiO2, SiO2 and Al2O3 have been shown to have a significant affect on the properties of polymer electrolytes, especially those based on polyether-lithium salt systems.
142 citations