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About Me

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Deok-Ho Roh

E-mail: Deokho.Roh@unist.ac.kr

LinkedIn: External Link

Researcher ID

ORCID:      0000-0001-9871-4359

Google Scholar:      External Link

Scopus:                    57190382594

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I am a researcher interested in sustainable energy and environment. My main research focus is to develop π-conjugated materials for energy harvesting, conversion, storage, and a sustainable environment. I am an expert in design, organic synthesis, and molecular engineering of π-conjugated materials for energy and environmental-related applications. Furthermore, my interdisciplinary research background in organic chemistry, photochemistry, and electrochemistry gives me unique insights to address challenging issues.

I recently received my Ph.D. in chemistry under the direction of Prof. Tae-Hyuk Kwon at Ulsan National Institute of Science & Technology (UNIST), Republic of Korea. Research work I have focused on during my Ph.D. course is synthesis and molecular engineering of π-conjugated organic materials, particularly push-pull organic photosensitizers for dye-sensitized solar cells. I controlled the photophysical properties of photosensitizers by modifying their molecular and electronic structures to enhance photovoltaic performances, and investigated their properties with spectroscopic, electrochemical, and computational methods. My future research goals are to extend and develop my molecular engineering skills to photosensitizers and photocatalysts for synthetic photoelectrochemistry, such as upcycling plastic wastes

Education

  • Mar.  2016 -Aug. 2022

M.S. and Ph.D. in Organic Chemistry

Department of Chemistry, UNIST, Republic of Korea

Advisor: Prof. Tae-Hyuk Kwon

Dissertation: "Electronic coupling engineering of π-conjugated organic materials for energy conversion and storage"

  • Mar. 2012 -Feb. 2016

B.S. in Energy Engineering and Chemistry

School of Energy and Chemical Engineering, UNIST, Republic of Korea

Honor and Awards

  • Feb 2023

UNIST Best Research Award                       

* The award for outstanding research achievement as one of the top two researchers in the class of 2023 graduates from the Department of Chemistry, UNIST

  • July 2022

Best Poster Award, GPVC 2022                       

* GPVC: Global Photovoltaic Conference                     

* GPVC is the largest international photovoltaic conference in the Republic of Korea since 2011.

  • Nov. 2020

Excellent Student Paper Award, PVSEC-30 & GPVC 2020

* PVSEC: The International Photovoltaic Science and Engineering Conference

  • Feb. 2020

The Samsung 26th Humantech Paper Award – Bronze Prize

* Research section: Material Science & Engineering

* It is the largest paper competition for graduate students in the Republic of  Korea, Samsung Electronics organize.

  • Oct. 2019

Best Poster Presentation Award, the 19th Organic Chemistry Division of Korean Chemical Society (KCS)

* KCS is the largest academic conference in the Republic of Korea.

Skills

Organic synthesis

- Design, synthesis, and molecular engineering of π-conjugated organic materials

- ​Electrosynthesis

Material characterizations and analysis

- NMR, FTIR, UV–vis absorption, PL spectroscopy, cyclic voltammetry (CV)
- Electrochemical impedance spectroscopy (EIS)
- Intensity-modulated photocurrent/photovoltage spectroscopy (IMPS/IMVS)
- Spectroelectrochemistry (SEC)

Density functional theory (DFT) calculations

- Gaussian 09W and GaussSum 3.0
- Molecular orbital, energy level, electrostatic potential (ESP)
- Calculated UV–vis absorption, IR, and Raman spectra
- Gibbs free energy, electrophilicity index, aromaticity analysis

Applications with organic materials

 

- Photoelectrochemical flow cells

- Dye-sensitized solar cells
- Supercapacitors

Contact Information

Phone: +82-10-9519-9870

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