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1.
Adv Mater ; 32(7): e1906976, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-31912946

RESUMO

The recent emergence of lead halide perovskites as ionic-electronic coupled semiconductors motivates the investigation of alternative solution-processable materials with similar modulatable ionic and electronic transport properties. Here, a novel semiconductor-cubic NaSbS2 -for ionic-electronic coupled transport is investigated through a combined theoretical and experimental approach. The material exhibits mixed ionic-electronic conductivity in inert atmosphere and superionic conductivity in humid air. It is shown that post deposition electronic reconfigurability in this material enabled by an electric field induces ionic segregation enabling a switchable photovoltaic effect. Utilizing post-perturbation of the ionic composition of the material via electrical biasing and persistent photoconductivity, multistate memristive synapses with higher-order weight modulations are realized for neuromorphic computing, opening up novel applications with such ionic-electronic coupled materials.

2.
Dalton Trans ; 47(26): 8683-8689, 2018 Jul 03.
Artigo em Inglês | MEDLINE | ID: mdl-29901672

RESUMO

We report a simple, surfactant-assisted room temperature synthesis of metallic cadmium nanoparticle sheets and their subsequent hydrolysis to the formation of rice-shaped monoclinic cadmium hydroxide nanostructures. These new nanostructures have demonstrated 30-40 fold superior electrochemical charge storage capacity along with quantized double layer charging of metal nanoparticles as compared to the bulk cadmium.

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