Single Crystal Materials
Single Crystal Materials
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Most materials we commonly use are polycrystalline, consisting of numerous grains and boundaries that can act as defect sites. In contrast, single crystal materials lack grain boundaries, exhibiting superior properties compared to their polycrystalline counterparts. However, the use of single crystal materials is limited due to their high price. Our research focuses on obtaining single crystal materials inexpensively, such as by utilizing abnormal grain growth in the solid state.
Related papers: Science, 2018, 362, 1021, Journal of Alloys and Compounds, 2021, 853, 157390, etc.
High-quality Nanomaterials
High-quality Nanomaterials
Similar to bulk materials, nanomaterials also have defects that can degrade their properties. For instance, ideal graphene is known to possess higher strength than steel and greater electrical conductivity than copper. However, most real-world graphene and graphene-based products often demonstrate poorer performance than steel and copper. Our research focuses on enhancing the quality of nanomaterials through defect engineering approaches, such as the synthesis of single crystal 2D materials using heteroepitaxy, interface modification between nanomaterials, etc.
Related papers: Science, 2018, 362, 1021, Advanced Functional Materials, 2020, 30, 50, 2005381, etc.
Heteroepitaxy of single crystal graphene
on single crystal Cu substrate
Interface engineering between nanomaterials
Applications of Functional Nanomaterials
Applications of Functional Nanomaterials
High-quality nanomaterials will find many uses. Among the diverse potential applications, our main interest is their functional uses, in battery, (opto-)electronics, catalysts, etc.
Related papers: ACS Materials Letters, 2022, 4, 5, 831, ACS Nano, 2013, 7, 1239 , etc
Battery
(Opto-)electronics
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