Q1. Could you briefly introduce yourself?

Hello, my name is Kim Do-eun. I received my Ph.D. under the supervision of Professor Hyun-ho Jung and am currently continuing my research as a postdoctoral researcher. Having beened for the Sejong Science Fellowship, I am conducting research on devices that control light across multiple wavelengths using various metallic, ceramic, and polymer nanoparticles.

Q2. What were the main research topics you focused on during your doctoral studies?

My research focused on assembling extremely small nanoparticles over large-area surfaces and utilizing their interactions with light to control reflection and scattering.

Previously, implementing such nanostructures on surfaces required lithography or etching processes, which involved considerable fabrication complexity. During my doctoral studies, however, I developed a technique that uses nanoparticles themselves to achieve rapid and uniform assembly over large areas.

Building on this technology, I expanded my research into various applications, including optical devices for color generation, optical sensors, and security devices.

Q3. What moments or experiences have been particularly rewarding or memorable throughout your research journey?

I have been fortunate that my efforts have often led to positive results. Above all, I have found the greatest sense of accomplishment when research I have worked hard on gets published in a prestigious journal.

It is deeply rewarding to have my efforts recognized, and having tangible achievements in the form of published papers gives me the motivation to approach subsequent research with a more positive and proactive mindset.

Q4. How do you usually manage stress during your doctoral studies?

I enjoy camping as a hobby. In the laboratory, I constantly have to explore vast amounts of information and think through complex problems. However, spending quiet time at a campsite, completely disconnected from my daily routine, naturally helps relieve stress.

These experiences allow me to recharge and return to the laboratory with renewed energy and focus.

Q5. What led you to choose GIST for your graduate studies?

As someone who completed my undergraduate studies at another institution, I had the opportunity to experience several research institutes and universities before deciding to pursue my graduate studies at GIST. The excellent research infrastructure was the decisive factor in my choice.

Compared with other institutions, GIST offered a wider range of research equipment and well-established research environments, including opportunities for in-depth discussions with professors. I believed it would be an ideal place to test my own ideas and develop them further through hands-on research.

Q6. How would you describe your experience as a graduate student at GIST?

As I had expected, GIST offered excellent research infrastructure. Beyond that, I was fortunate to have met a great advisor and wonderful colleagues.

Even when facing difficulties in the research process, such as paper rejections, I was able to overcome them with the support of the people around me. I am especially grateful that I was able to focus entirely on my research without experiencing significant stress from interpersonal relationships.

Q7. What advice would you give to undergraduate students or prospective graduate students considering GIST?

First, I encourage you to think deeply about what matters most to you. Everyone has different priorities, whether they are research achievements, research topics, laboratory culture, or work-life balance.

Rather than relying on rumors about which laboratory is supposedly the best, it is important to understand what kind of environment allows you to thrive and what kind of research you can truly immerse yourself in.

To gain a better understanding, I recommend participating in research internships or arranging consultations with researchers and professors. Do not be afraid to take the first step. Gain firsthand experience and discover your own path along the way.

Q8. What goals do you hope to achieve in your future research and career?

My personal dream is to develop technologies that can make a meaningful difference in people's lives through research in nanodevices and optics.

In terms of my career, I hope to gain experience at various research institutions, both in Korea and abroad. In the long term, I aspire to become an independent researcher who leads my own research projects while also nurturing and educating the next generation of students.

Q9. Finally, is there anything you would like to share with GIST students and readers?

I majored in Materials Science and Engineering as an undergraduate and later earned my doctoral degree in the fields of optics and electrical and electronic engineering.

We live in an era where interdisciplinary research and collaboration are becoming increasingly important. However, rather than trying to master every field, I believe it is essential to first develop one area of distinct expertise that you can truly call your own.

Having a strong foundation makes it possible to build meaningful connections with other academic disciplines. Even if your background differs slightly from the field you wish to pursue, do not let that discourage you. Be confident, embrace new challenges, and pursue the opportunities ahead of you.