Enhanced photoelectrochemical response in SrTiO3 films decorated with carbon quantum dotst

摘要

The SrTiO3 films were synthesized by a hydrothermal method using TiO2 nanotube arrays as the precursor. The photoanode of SrTiO3 film decorated by carbon quantum dots (CQDs) is capable of converting near IR photon energy to photocurrent. Efficient carrier transfer and a high electron/hole separation rate of the hetero-junction between the CQDs and SrTiO3 were achieved.