SBIR Phase II: An Omni-Directional Antireflective Coating from Solutions

这项小型企业创新研究（SBIR）第二阶段旨在开发一种表面纹理技术，该技术将显著改善太阳光耦合到各种类型的太阳能电池。在太阳能电池中，表面纹理是记录效率的必要条件。全向抗反射涂层（Omni-AR）溶液在宽光谱范围（400-1200 nm）内的大入射角范围内（全向）的反射光减少。太阳能电池的效率提高了10%以上（实验）。该项目更广泛的影响/商业潜力将是一种低成本、广谱、全方位和与基材无关的表面纹理抗反射涂层。预计它将对当前和未来的太阳能电池技术产生重大影响。在没有真空处理的情况下为太阳能电池提供接近理想性能的抗反射涂层的能力是降低太阳能电力成本的重要一步。这种以溶液为基础的沉积技术使得提供一种单一的涂层技术成为可能，这种技术应该适用于所有类型的太阳能电池材料和结构。该项目将显著提高当前和未来太阳能电池的转换效率（~10%），成本增加最小（~4%）。“这项奖励是根据2009年美国复苏和再投资法案（公法111-5）资助的。”

This Small Business Innovation Research (SBIR) Phase II seeks to develop a surface texturing technique that will significantly improve sunlight coupling into various types of solar cells. Surface textures are mandatory to record efficiencies in solar cells. The Omni-Directional Antireflective Coating (Omni-AR) solution showed a reduction in reflection in a large range of incident angles (omni-directional) over a broad spectral range (400-1200 nm). Improved solar cell efficiency of over 10% was demonstrated (experimentally). The broader impact/commercial potential of this project will be a low-cost, broad-spectrum, omni-directional and substrate-independent surface texture antireflective coating. It is expected to have a significant impact on current and future solar cell technologies. The ability to provide near ideal performance of antireflective coatings to solar cells without a vacuum process is a major step in reducing the cost of solar electricity. This solution-based deposition technique makes it possible to provide a single coating technology that should work with all types of solar cell materials and structures. This project will significantly improve the conversion efficiency in both current and future solar cells (~10%) with a minimum cost increase (~4%)."This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5)."