Colorful Organic And Perovskite Solar Cells Through Optical Regulations Of Conductive Polymer Electrodes

Realizing multi-colors of solar cells would make them more attractive for applications in photovoltaic building integration and wearable devices.In this thesis,perovskite solar cells with organic polymer and PEDOT:PSS,respectively,as the interface layer and the top electrode.Based on the reflection coefficient formula of multi-layer structure,we studied the reflection phenomenon of the device and simulated the optical reflection rule of the multi-layer structure.When PEDOT:PSS thin films were prepared on organic polymer films had an anti-reversal effect on organic polymer film,so that part of light reflection in the visible is suppressed.Selective reflection of visible light was achieved by adjusting the thickness or the number of layers of PEDOT:PSS.In this thesis,organic polymers(P3HT,Spiro-OMeTAD)were used as the hole transport layer in the perovskite solar cells,PEDOT:PSS was used as the top electrode,and colorful perovskites were realized by adjusting the thickness or the number of layers of PEDOT:PSS.PEDOT:PSS as the top electrode of the organic solar cell was also to regulate the top electrode PEDOT:PSS thickness or layers to achieve the device's colorful appearance.In addition,the original metal electrode was replaced with a translucent polymer electrode in the colorful perovskite solar cell,which reduced the manufacturing cost of the device,realizing that both sides of the device can receive sunlight.When integrated with a building,it can absorb the light both indoor and outdoor at the same time.The photoelectric conversion efficiency of a colorful perovskite battery reaches 15% when light is incident from the FTO,and the efficiency is about 13% when incident from the top electrode side.The photoelectric conversion efficiency of the flexible colorful tandem solar cell varies from 7.23% to 8.34% as the color changes.Using PEDOT:PSS for anti-reflection on organic polymer films to achieve colorful solar cells provided a new approach for the fabrication of color solar cell devices.Through this method to realize solar cell colorization have low cost and multi-color adjustable characteristics.It's believed that flexible and highly efficient colorful solar cells have great potential for application in the future.