Tunghai university

Advanced Functional Materials and Optoelectronics Laboratory

Yuan Jay Chang
https://d93223006.wixsite.com/jaysama

Research Field

Novel Materials

Introduction

Professor Yuan Jay Chang is currently a Professor in the Department of Chemistry at Tunghai University, Taiwan. He received his Master of Science degree from National Taiwan University in 2002 and his Ph.D. from the same institution in 2009. From 2008 to 2009, he was a visiting graduate student in the laboratory of Professor Teruo Shinmyozu at the Institute for Materials Chemistry and Engineering (IMCE), Kyushu University. He subsequently completed postdoctoral research training at the Institute of Chemistry, Academia Sinica, from 2010 to 2012.

In 2025, Professor Chang served as a Visiting Professor at Kyushu University’s International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), where he collaborated with Professor Motonori Watanabe’s group on research focused on photocatalytic water splitting. To date, he has published 96 peer-reviewed SCI-indexed journal articles (H-index = 31), with research interests spanning perovskite solar cells (PSCs), dye-sensitized photoelectrochemical cells for water splitting, organic photovoltaics (OPVs), and thermally activated delayed fluorescence organic light-emitting diodes (TADF-OLEDs).

The Advanced Organic Optoelectronic Materials Laboratory, led by Professor Yuan Jay Chang, welcomes international students interested in research internships at Tunghai University. The group’s primary research focus is the design and development of novel organic small molecules for advanced optoelectronic applications, including: (i) self-assembled monolayers (SAMs) and passivation materials for perovskite solar cells; (ii) host materials and emitters for TADF-OLEDs; (iii) organic photocatalysts for solar-driven water splitting.; (iv) guest materials for ternary OPVs.

The Advanced Functional Materials and Optoelectronics Laboratory (Jay's Lab) is dedicated to interdisciplinary research focused on the development of novel organic materials and their integration into functional devices. Our mission is to establish robust material platforms for perovskite solar cells (PSCs), dye-sensitized photocatalysts for water splitting (DSSWS), organic photovoltaics (OPVs), and thermally activated delayed fluorescence organic light-emitting diodes (TADF-OLEDs).

By combining the synthesis of innovative organic materials with surface and interface engineering and precise energy-level modulation, we aim to deliver cutting-edge solutions for light-emitting devices and sustainable energy applications.

Our team places strong emphasis on hands-on training, collaborative research, and international academic exchange.


Research Topics

perovskite solar cells (PSCs), dye-sensitized photocatalysts for water splitting (DSSWS), organic photovoltaics (OPVs), and thermally activated delayed fluorescence organic light-emitting diodes (TADF-OLEDs).


Honor

He has published 96 peer-reviewed SCI-indexed journal articles (H-index = 31), with research interests spanning perovskite solar cells (PSCs), dye-sensitized photoelectrochemical cells for water splitting, organic photovoltaics (OPVs), and thermally activated delayed fluorescence organic light-emitting diodes (TADF-OLEDs). He has received funding for 38 research grants from the National Science and Technology Council (NSTC) and has been honored with seven Tunghai University Academic Publication Awards.


Educational Background
  • Ph.D. Department of Chemistry, National Taiwan University
  • M.S. Department of Chemistry, National Taiwan University
  • Institute of Chemistry, Academia Sinica, Taiwan (National Service for Military/Defense Research)
  • Institute for Materials Chemistry and Engineering (IMCE) and Department of Molecular Chemistry, Kyushu University, Japan
  • Institute of Chemistry, Academia Sinica, Taiwan
  • International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, Japan

Job Description

The accepted interns will have the opportunity to learn and improve their experimental skills in (1) developing high-efficiency and stable interface materials for perovskite solar cells, combining the design and synthesis of self-assembled monolayers (SAMs) and polyarylene hole-selective layers (HSLs); (2) fabrication of perovskite optoelectronic devices; (3) compound structure identification, spectral analysis, and photoelectric property analysis of the devices; and (4) a special report and results presentation, exploring the impact of SAMs or HSLs on perovskite thin film grain growth, reducing defect density, and improving energy level matching, aiming to demonstrate the potential of self-assembly and molecular engineering in high-efficiency, long-lifespan perovskite solar cells.

Preferred Intern Educational Level

International graduate students with an chemistry/chemical engineering/materials background are welcome.

Skill sets or Qualities

The applicants should have research experience in organic materials.