Dr. Vaidotas Kazukauskas is a Professor at the Faculty of Physics of Vilnius University, Lithuania. He was awarded Dr. Vaidotas Kazukauskas degree in 1999. The topics of his research work are carrier transport, generation, recombination and trapping phenomena in advanced materials and structures for (opto-)electronic and photovoltaic applications. Prof. V. Kazukauskas is/was involved as a team leader into the six large-scale international projects and other numerous projects. He was awarded the National Science Award of Lithuanian Republic, the National Science Award for the Distinguished Scientist, the Science Award of the Rector of Vilnius University and others. V. Kazukauskas has more than 380 publications, had delivered more than 60 invited lectures at the international conferences, and authored three textbooks.