Te-Fu Yeh et al. of National Cheng Kung University in Tainan, Taiwan invented nitrogen-doped graphene oxide quantum dots containing p-n type photochemical diodes, which catalyze water-splitting under visible-light irradiation mimicking biological photosynthesis. Read the original article and report: Advanced Materials doi/10.1002/adma.201305299, NCKU Research Express
(Upper) Nitrogen-doped graphene oxide quantum dots. (Lower) quantum dot p-n diode for water splitting. Credit : Te-Fu Yeh et al., Advanced Materials (Posted by Y. Tzeng)