초록 |
Metal nanocrystals with various shapes and dimensions have been studied and used for various applications depending on their specific shape. For example, metal nanowires (NWs), which are one-dimensional (1D) conducting materials, are used as effective transparent electrode materials mostly through the formation of networked films. Among the various metallic materials, copper is promising because it is inexpensive, abundant, and highly conductive. Here, we demonstrate a simple method for the dimensional control of Cu nanocrystals from NWs (1D) to NPLs (2D) by adding an additive in the well-known synthesis of Cu NWs. This method allow us to grow large single-crystalline two-dimensional Cu NPLs with the edge lengths up to 30 μm. We test their feasibility as an novel 2D conductive fillers for flexible and stretchable electrode applications. |