Large-Area Transparent “Quantum Dot Glass” for Building-Integrated Photovoltaics

A concept of transparent “quantum dot glass” (TQDG) is proposed for a combination quantum (QD)-based glass luminescent solar concentrator (LSC) and its edge-attached cells, as type photovoltaics (TPVs) building-integrated (BIPVs). Different from conventional LSCs, which typically serve pure optical devices, TQDGs have to fulfill requirements both power-generating components building construction materials. In this work, we demonstrate large-area (400 cm2) based on silicon QDs in triplex configuration. An overall power conversion efficiency (PCE) 1.57% was obtained with back-reflection TQDG (average visible transmittance 84% color rendering index 88 low haze ?3%), contributing light utilization (LUE) 1.3%, among the top reported TPVs LSC technology similar size. Most importantly, these are shown better thermal sound insulation properties compared normal float glass, well improved mechanical performance safety, significantly pushes TPV toward practical integration. simultaneously exhibit favorable photovoltaic, aesthetic, envelope characteristics can multifunctional material realization nearly zero-energy concepts.