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用光电流作用谱、瞬态光电流、循环伏安及线性电位扫描法研究了TiO2纳米晶／纳米多孔膜电荷传输特性．结果表明TiO2纳米多孔膜的电荷传输与块体半导体不同．TiO2纳米晶电极的能带不弯曲，电子在导带中可向两个方向流动，电子既可以流向电极内部经由外电路输出．也可以流向电解质溶液被溶液中的受主捕获．在TiO2纳米多孔膜电极中，不仅在负电位区能带边随电位变化，而且在正电位区能带边随电位变化而移动，即带边不钉扎。加入合适的施主可提高光电转换效率．加入受主则在电极溶液界面引起电子的严重损失，降低光电转换效率．
The charge transport characteristics of TiO2 nanocrystalline / nanoporous films were investigated by photocurrent interaction spectroscopy, transient photocurrent, cyclic voltammetry and linear potential sweep. The results show that the charge transfer of TiO2 nanoporous films is different from that of bulk semiconductors. The energy band of the TiO2 nanocrystalline electrode is not bent, the electrons can flow in both directions in the conduction band, and the electrons can flow to the inside of the electrode and output through the external circuit. It is also possible for the electrolyte solution to be captured by the recipient in solution. In the TiO2 nanoporous membrane electrode, not only in the negative potential region with the potential changes with the band edge, but also in the positive potential band side with the potential changes in the movement, that is, the band does not pin. Adding appropriate donors can improve the photoelectric conversion efficiency. Addition of the acceptor leads to severe electron loss at the electrode solution interface, which reduces the photoelectric conversion efficiency.