Photo-spectral sensitivity controllable cells using organic multi-layer

We fabricated the photo-spectral sensitivity controllable cells with a multi-layered structure of organic dyes and investigated the photoelectrical properties. The photocurrent spectra of these cells shows high sensitivity in the visible spectral range, and the spectral sensitivity can be controlled by the bias voltage. These phenomena can be explained by the field-dependent and wavelength-dependent quantum efficiency of the organic dye layers.