PhD thesis defence: Mykhailo Koltsov, "Development of Bi2S3-Based Materials by Close-Spaced Sublimation for Thin-Film Solar Cell Applications"

4 September, 2026 at 1:00 PM Mykhailo Koltsov, "Development of Bi2S3-Based Materials by Close-Spaced Sublimation for Thin-Film Solar Cell Applications" Supervisor: Assoc. Prof. Dr. Nicolae Spalatu, School of Engineering, Tallinn University of Technology, Tallinn, Estonia Co-supervisor: Prof. Dr. Ilona Oja Acik, School of Engineering, Tallinn University of Technology, Tallinn, Estonia Opponents:

• Dr. Galina Gurieva, Crystallographic Material Research, Helmholtz-Zentrum Berlin, Berlin, Germany

• Prof. Dr. Sven Lange, Institute of Physics, University of Tartu, Tartu, Estonia