摘要
In the process of fabrication of polymer photovoltaic （PV） devices, poly （3, 4-ethylenedioxythiophene）： poly（styrenesulfonate） （PEDOT：PSS） thin film, acting as an anode buffer layer, is spin-coated under the action of an electric field. The PV devices with a PEDOT：PSS layer spin-coated under the action of a static electric field exhibit improved short-circuit current density （Jsc） and power conversion efficiency （PCE）. The investigation of morphology shows that the appropriate intensity of the electric field can increase the roughness of the surface of the PEDOT：PSS layer, which results in improved contact between the anode and hole transport layer and thus enhances the Jsc of the devices. Chemical analysis is also provided by x-ray photoelectron spectroscopy （XPS） spectra.
In the process of fabrication of polymer photovoltaic （PV） devices, poly （3, 4-ethylenedioxythiophene）： poly（styrenesulfonate） （PEDOT：PSS） thin film, acting as an anode buffer layer, is spin-coated under the action of an electric field. The PV devices with a PEDOT：PSS layer spin-coated under the action of a static electric field exhibit improved short-circuit current density （Jsc） and power conversion efficiency （PCE）. The investigation of morphology shows that the appropriate intensity of the electric field can increase the roughness of the surface of the PEDOT：PSS layer, which results in improved contact between the anode and hole transport layer and thus enhances the Jsc of the devices. Chemical analysis is also provided by x-ray photoelectron spectroscopy （XPS） spectra.
基金
Project supported by the New-Century Training Program Foundation for Talents of the Natural Science (Grant No. NCET-08-0717)
the National Natural Science Foundation of China (Grant Nos. 60777026,60677007 and 60825407)
the Program of Introducing Talents of Discipline to Universities (Grant No. B08002)
