Interrogating the effects of ion-implantation-induced defects on the energy storage properties of bulk molybdenum disulphide

Literature Information

Publication Date 2018-10-26
DOI 10.1039/C8CP05384G
Impact Factor 3.676
Authors

Rasmita Barik


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Abstract

The effects of implanted molybdenum and tungsten ions on the energy-storage properties of electrodes made from bulk molybdenum disulphide (MoS2) have been investigated. Six samples of crystalline MoS2 were modified by an ion-implantation strategy: three samples with Mo ions and three with W ions, at varying fluences and at an energy of 10 keV. The Stopping and Range of Ions in Matter (SRIM) software was used to determine the simulated defect density in terms of vacancies and the implanted ion-penetration depth. Raman spectroscopy and photoluminescence spectroscopy were used to determine any changes in the material as a result of irradiation. Electrochemistry showed that the ion-implanted MoS2 samples exhibited significant energy storage properties (such as capacity, cycling stability, coulombic efficiency, and electron transfer kinetics) compared to the pristine MoS2 samples, confirming the effects of defects induced by ion-implantation.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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