Study of semitransparent polymer solar cells with ZnSe/LiF distributed Bragg Reflector

Semitransparent polymer solar cells (STPSCs) are a potential photostatic structure for building-integrated photovoltaic (BIPV) application. In order to realize the application practically, the balance between efficiency, transparency, and color property is a challenge in the field. In this paper, efficient semitransparent polymer solar cells utilizing P3HT:ICBA as active layers were demonstrated. By introducing ZnSe/LiF distributed Bragg Reflector (DBR) onto the device, the power conversion efficiency (PCE) has been increased to 6.19%. In addition, this approach can also improve the color render property by leveling the transmittance spectrum. The highest color-rendering index (CRI) is achieved using device with 1 pair of DBR. As a result, the high efficiency and fine CRI confirmed that the STPSC with DBR is an effective structure for BIPV application.

Automated summary

This study demonstrates efficient semitransparent polymer solar cells utilizing P3HT:ICBA as active layers and enhancing power conversion efficiency by introducing ZnSe/LiF distributed Bragg Reflector (DBR). Additionally, this approach improves color render property, achieving better color performance.