Trans‐Reflective Structural Color Filters Assisting Multifunctional‐Integrated Semitransparent Photovoltaic Window

• DOI: 10.1002/adma.202300360
• Publication Date: 2023-03-17T16:19:20Z
• Authors: Ningning Liang; Ruiqi Tian; Ye Xu; Huifeng Yao; Hua Yang; Yi Wei; Xia Xin; Ruixiang Chen; Tianrui Zhai; Zhaohui Wang; Jianhui Hou
• Keywords: Ultraviolet; Color filter array; Photoelectric effect

Multifunction-integrated semitransparent organic photovoltaic cells (STOPVs), with high power generation, colorful transmittance/reflectance, excellent ultraviolet (UV) protection, and thermal insulation, are fully in line the concept of architectural aesthetics photoprotection characteristics for building-integrated photovoltaic-window. For indelible rainbow color window, one crucial issue is to realize integration these photons- photoelectric-related multifunction. Herein, dynamic transmissive reflective structural controllable filters, asymmetrical metal-insulator-metal (MIM) configurations (20 nm-Ag-HATCN-30 nm-Ag) through machine learning, deliberately designed STOPV devices. This endows resultant integrated devices ≈5% enhanced conversion efficiency (PCE) than bare-STOPVs, gifted UV (300-400 nm) blocking rates as 93.5, 94.1, 90.2, 94.5%, well a superior infrared radiation (IR) (700-1400 rejection approaching 100% transparent purple-, blue-, green- red-STOPV cells, respectively. Most importantly, benefiting from photonic recycling effect beyond microcavity resonance wavelength, reported quantum utilization (QUE) 80%, first presented transparent-green-STOPVs an ultra-narrow bandgap 1.2 eV. These Febry-Pérot filters can also be extended silicon- perovskite-based optoelectric make it possible integrate additional target optical functions multi-purpose