纳米多孔SiO2减反射膜制备及有机光伏性能优化

Key Points

• This research aims to optimize the performance of organic photovoltaic devices by preparing a simplified anti-reflection coating using SiO2 nanoparticles.
• Utilized sol-gel method to fabricate SiO2 nanoparticle anti-reflection coatings.
• Investigated the effects of acidic and basic catalytic systems on the microstructure and optical performance of the films.
• Integrated the optimized coating into organic solar cells based on D18:L8-BO.
• The basic system produced SiO2 nanoparticles with uniform dispersion (average diameter 60 nm) and a crack-free nanoporous framework.
• The average refractive index of the film was reduced to 1.22, enhancing the visible light transmission through the glass substrate by approximately 4.3%.
• The integration of the anti-reflection coating into solar cells increased short-circuit current density (Jsc) and improved power conversion efficiency from 18.87% to 19.60%.