"We Engineer Light-Material Interactions for De Novo Optoelectronics"

Excitonic Engineering Lab. @ SKKU

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Prof. Dr. Sae Byeok Jo [조새벽] received his Ph.D. in Chemical Engineering from Pohang University of Science and Technology (POSTECH) in Aug. 2014. He worked as a postdoctoral researcher in the Department of Materials Science and Engineering at University of Washington, USA, until May 2020 and then as a research professor at Yonsei University, Korea. He will start working as an assistant professor in the School of Chemical Engineering at Sungkyungkwan University (SKKU), Korea in Feb. 2022. He is a chemical engineer and material scientist, creating rational designs of next-generation molecular opto-electronic systems thru his expertise on polymer physics, semiconductor physics, synchrotron analysis and ultrafast spectroscopy.

Academic Experience

Assistant Professor @ School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, Korea

Research Professor @ Nano Science and Technology Research Institute, Yonsei University, Seoul, Korea

  • 2020.08.01 ~ 2022.02 (1 yr 7 mos)

  • Smart Electronic-Device and Process Lab (Prof. Jeong Ho Cho)

  • Developing photoelectronic computing systems based on color-selective hybrid photosensors and memory devices

  • Developing hybrid optoelectronic devices with extremely low non-ideal losses via the molecular excited state engineering

Postdoctoral Researcher @ Jen Research Group, Dept. of Materials Science and Engineering, University of Washington, Seattle, Washington, USA

  • 2015.10.26 ~ 2020.06.03 (4 yrs 7 mos)

  • PI: Prof. Alex. K.-Y. Jen (University of Washington, USA)

  • Studied excited state engineering of conjugated molecules and perovskites

  • Studied ultrafast pump-probe spectroscopy based on femto-second lasers

Postdoctoral Researcher @ Polymer Research Institute, Pohang, Korea

  • 2014.08.08 ~ 2015.10.31 (1 yr 3 mos)

  • 2015.02.11 ~ 2015.10.31 (J.A. @ Center for Advanced Soft Electronics, Pohang, Korea)

  • PI: Prof. Kilwon Cho (POSTECH, Korea)

  • Studied controlled growth of ultra-high quality graphene templates

  • Studied synchrotron analysis of templated organic nanocrystals

  • Studied device physical analysis of heterointerfaces in photovoltaic devices

  • Developed nano-second transient opto-electronic measurement systems

Research Assistant @ Cho Research Group, Dept. of Chemical Engineering, POSTECH, Pohang, Korea

  • 2009.03.02 ~ 2014.08.08 (5 yrs 5 mos)

  • Lead 10 research projects in the field of organic photovoltaics and graphene electronics

  • Contributed partially in various industrial research projects (LG Chemistry, Samsung Electronics and POSCO R&D) and mainly in government research projects including Global Frontier Research Center for Advanced Soft Electronics (CASE)


Doctor of Philosophy (Ph.D.) in Chemical Engineering

Bachelor of Science (B.Sc.) in Chemical Engineering

  • 2005.03.02 ~ 2009.02.18

  • Dept. of Chemical Engineering, POSTECH, Pohang, Korea

  • Graduation project : "High Performance Organic Photovoltaic Cell via Post-production Thermal Annealing"

  • Graduated Summa Cum Laude (with Academic Achievement of Highest Distinction)

Gyeonggi Science High School for the Gifted (GSHS), Korea

  • 2003.03.02 ~ 2005.02.28

  • Graduated in Advance (exempted 1 year)

Honors & Activities


Grants & Honors

  • NRF Fostering the Next Generation of Researchers Program for Development of Hybrid Opto electronic Devices with Extremely Low Non-ideal Losses via the Molecular Excited State Engineering, National Research Foundation, Korea

  • Grant# NRF-2020R1A6A3A01098863

  • 2020.09.01 ~ 2022.08.31

  • Outstanding Poster Awards Materials Research Society, USA, Nov. 2014

  • PCE Graduate Fellowship Dept. of Chem. Eng., POSTECH, Korea, 2012-2013

  • BK21 Outstanding Graduate Fellowship Ministry of Education, Korea, 2012

  • T.J. Park Graduate Fellowship POSCO T.J. Park Foundation, Korea, 2009-2012

  • Outstanding Poster Awards Materials Research Society, USA, Nov. 2011

  • Best Poster Awards Polymer Society of Korea, Korea, Apr. 2011

  • Graduate with top honors Dept. of Chem. Eng., POSTECH, Korea, 2009

  • Samsung Junior Frontier Leader Scholarship Samsung, Korea, 2005-2008

Excitonic Engineering Lab.

SB Research Group @ SKKU