摘要
A type of photovoltaic cell was made by sandwiching micro-crystalline chlorophyll-a (chla) layer and polyvinyl alcohol (PVA) film between two semiconductive optical transparent SnO2 electrodes, such as SnO2/chla/PVA/SnO2. The cell showed a dark rectifying effect and presented photovoltaic properties on illumination, which was illustrated by the charge distribution in the cell. It was suggested mat the SnO2/chla junction might be responsible for photovoltage and the chla/ PVA for the charge separation upon irradiation of visible light. The equivalent electric circuit was discussed and its equivalent component values were calculated.
A type of photovoltaic cell was made by sandwiching micro-crystalline chlorophyll-a (chla) layer and polyvinyl alcohol (PVA) film between two semiconductive optical transparent SnO2 electrodes, such as SnO2/chla/PVA/SnO2. The cell showed a dark rectifying effect and presented photovoltaic properties on illumination, which was illustrated by the charge distribution in the cell. It was suggested mat the SnO2/chla junction might be responsible for photovoltage and the chla/ PVA for the charge separation upon irradiation of visible light. The equivalent electric circuit was discussed and its equivalent component values were calculated.
基金
Project supported by the National Natural Science Foundation of China (No. 69971014) and Shandong Province Natural Science Foundaion (No. Y98G03099).
