Semitransparent Organic Solar Cells with Vivid Colors

Authors：Li, Xue; Xia, Ruoxi; Yan, Kangrong; Ren, Jie; Yip, Hin-Lap^*; Li, Chang-Zhi^*; Chen, Hongzheng

Source：ACS Energy Letters, 2020, 5(10): 3115-3123.

DOI：10.1021/acsenergylett.0c01554

• EFFICIENCY
• POLYMER

Organic solar cells (OSCs) with visible transparency and vivid colors are promising for deployment in building-integrated photovoltaics (BIPVs), yet significant challenges remain to be addressed for not only balancing the trade-off between the photovoltaic and optical properties but also controlling the bandpass of visible transmittance for the coloration of semitransparent OSCs (ST-OSCs). Herein ST-OSCs with vivid colors are successfully developed by employing one fixed active blend in the rationally designed device layout with a high-quality Fabry-Perot electrode. With the assistance of optical simulation, vividly colorful ST-OSCs have been obtained with power conversion efficiency of >14% and maximum transmittance up to 31%. Overall, this study provides new access to OSCs with promising features as BIPVs.

• Institution
  浙江大学