KETEP 세계에너지시장정보

In this study, published in Nature Communications, Assistant Professor Satoko Toyama, Lecturer Takehito Seki, Project Associate Professor Bin Feng, Specially Appointed Research Professor Yuichi Ikuhara, and Director and Professor Naoya Shibata of the Institute of Engineering Innovation, Graduate School of Engineering, The University of Tokyo, have succeeded in directly demonstrating the existence of space charge layers at the grain boundaries of YSZ by observing local electric fields using advanced electron microscope.

Furthermore, similar observations were made at several grain boundaries with different crystal orientations (the way the atoms are arranged in the crystal structure), and the researchers succeeded in finding grain boundaries where space charge layers do not exist.