Jun Ho Yum

Jun Ho Yum is a Scientist at the Laboratory for Molecular Engineering of Optoelectronic Nanomaterials (LIMNO), EPFL School of Basic Sciences (SB), and concurrently serves as a Lecturer within the SCGC-ENS teaching unit of the same school. His work bridges advanced materials research and chemical education, focusing on next-generation photovoltaic technologies.

Research Interests

Dr. Yum’s research centers on the molecular engineering of organic and organometallic sensitizers for dye-sensitized solar cells (DSSCs) and related photovoltaic architectures. Key themes include:

• Design of high–molar-extinction-coefficient dyes for thin-film and solid-state DSSCs.
• Energy-relay and phosphorescent dyes to broaden spectral response.
• Platinum-free counter electrodes and mesoporous TiO₂ scaffolds.
• Integration of quantum dots (CdSe, Sb₂S₃) and perovskite materials into mesoscopic solar cells.
• Photoelectrochemical tandem devices for direct solar water splitting.

Publication Trends

Between 2006 and 2010, Dr. Yum co-authored more than 40 peer-reviewed papers. The work spans fundamental dye design, nanomaterial optimization, and full-device engineering, with a strong emphasis on improving light-harvesting efficiency, long-term stability, and cost reduction of emerging photovoltaic systems.

Scientific Awards & Recognition

No specific prizes or fellowships are mentioned in the provided text.

Teaching, Advising & Grants

As a Lecturer within SB-SCGC, he delivers the course "Energy conversion by semiconductor devices", introducing students to semiconductor physics, photophysics and photoelectrochemistry. He has formally supervised at least two EPFL PhD students:

• Simon Nussbaum
• Barbara Alexandra Primera Darwich

Laboratory & Team

Dr. Yum is affiliated with the LIMNO laboratory headed by Prof. Michael Grätzel, world-renowned for pioneering DSSC technology. The laboratory hosts interdisciplinary teams of chemists, physicists and engineers developing molecular and nanoscale solutions for sustainable energy conversion.