I have 40 years of experience, and specialize in the field of physical chemistry with specific knowledge in the areas of photochemistry, free radical chemistry and material chemistry. I have published on such topics as elctronic properties of free radical, chemical reactivity and photo dynmaics. I am an open minded scientist, and my research is evolving with time in techniques and system of interests. I collaborate extensively with international scientists, such as Germany, Japan, Netherlands and Taiwan.