With the degree of asymmetry in the electrode increased, the dark current can be reduced more. 随着电极不对称程度的加剧,对于暗电流的抑制作用更加明显。
There is not transition layer between the electrode semiconductor and electrolyte, which results the electrons 'reverse transfer easily, then dark current is formed. 由于电极半导体与电解液之间没有过渡层,导致电子容易出现反向转移而形成暗电流。