NSF Previous Research Experience Essay_3rd

NSF Previous Research Experience Essay_3rd - Previous...

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Previous Research Experiences As the pace of globalization picks up rapidly, the researchers in the U.S. begin to set up mutual collaborations with the experts in different fields all over the world to work on the projects that can potentially make the world better. As a young student studying materials science in University of Illinois at Urbana-Champaign (UIUC), I decided to involve myself in research projects not only in the U.S., but also abroad to expand my horizons. These experiences helped me to develop research and collaborative skills to contribute in an international research team to benefit different regions in the world as a researcher. During my undergraduate study at UIUC, I participated in Professor John Rogers’ group and studied to grow perfectly aligned arrays of high-density single-walled carbon nanotubes (SWNTs) using lithographic process, which is one of the most popular “top-down” approaches, to fabricate thin film transistors (TFTs). In the SWNT arrays, there are semiconducting SWNTs (s-SWNTs) and metallic (m-SWNTs). The m-SWNTs in the arrays, however, are detrimental to the on/off ratio and the intrinsic mobility of the TFTs. To solve this problem, my mentor and I were trying to construct the energy separation versus nanotube diameter plot for the SWNTs to examine the light absorption of m-SWNTs in the arrays so we could use a laser with specific wavelength to burn off the metallic tubes. The results were promising as the intrinsic mobility of the SWNT arrays in the fabricated TFTs could reach up to 3000 cm 2 /(V s). It had been a wonderful experience to learn the “top-down” lithographic skills in Prof. Rogers’ group. Most importantly, it was a great opportunity for me working in a collaborative fashion with graduate students and senior scientists while still playing a key role to solve research problems in a team. My research experience in Prof. Rogers’ group motivated me to apply materials science to address many challenges our society is facing. My career goal is to become a globally-engaged knowledge expert and leader who can
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NSF Previous Research Experience Essay_3rd - Previous...

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