Deposition Voltage Research of CdSe Quantum Dots Sensitized TiO_2 Solar Cell

摘要

TiO_2 nanocrystalline semiconductor film was made on the titanium (Ti) substrate by hydrothermal method,and then prepared the CdSe quantum dot layer on the face of the TiO_2 nanocrystalline semiconductor film by electrochemical deposition method. We studied the affect of deposition voltage of the CdSe quantum dots' growth, finding that when the deposition voltage was -1.3V,CdSe quantum dots grown best.However, In terms of CdSe/TiO_2 as the light-anode,using electricity chemistry workstation to test,We gain a solar cell with Short circuit current density of 1.45×10~(-3)A-cm~(-2) and the open circuit voltage of 0.24 V.