Sunny Wong

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Skills

Scanning Electron Microscope (SEM)

Background: To characterize the nanoscale structure prepared by the alkaline oxidation to the copper substrate. From the SEM image in the top view (Figure 1), I found that the alkaline oxidation to copper introduces a large amount of nanoscale flake-like structure, which has a random orientation. Also, the thickness and

Machine Learning

Background: I need an efficient and accurate method to annotate the droplets contained in the Time-lapse images. It is challenging for the "traditional image analysis" methods, such as image thresholding (Figure 1). Because of few things: 1. Various focus between droplets 2. Various intensity between regions 3. Segmentation

Transmission Electron Microscope (TEM)

I participated in two projects involving TEM (JEOL-2100F), which is the MXene and the Metal-Organic-Framework (MOF) project. Starting from the MXene project, I used TEM to examine MXene at the atomic scale. Figure 1a shows the TEM image of the MXene I synthesized and exfoliated. It can be observed that

Photolithography

Background: I was planning to synthesize the micro-structure as the skeleton for the growth of the nano-roughness feature. This design is conventionally adopted to avoid the failure of the self-propelling mechanism. To begin with, I designed the mask on AutoCad (Figure 1). Then I sent the drawing to the commercial