Selected images from AEM (2011) and ACS Nano (2015). (Top) Transient photovoltage & current measurement set-up and photovoltage decay depending on background illumination. Based on a nanosecond pulse laser, various transient electrical measurements were done; TPV, TPC, CE, TDCF and photo-CELIV (Bottom) In-situ measurement of photoemission spectroscopy and the corresponding energy level diagram of orientation controlled molecular crystal films.