SBIR Phase II: High-power, lightweight, and flexible tandem perovskite solar panels

该奖项的全部或部分资金来自《2021年美国救援计划法案》(公法117-2)。小型企业创新研究(SBIR)第二阶段项目的更广泛影响/商业潜力是一个机会，可以开发依赖移动电力的新应用，并最终降低住宅、商业和公用事业规模的太阳能发电成本。该项目寻求开发使用钙钛矿型吸收材料的超轻、灵活和高效的光伏组件。这些高效、轻便和灵活的模块可以实现长寿命无人驾驶飞行器、电动汽车的补充充电，以及为屋顶太弱而无法安装典型太阳能电池板的商业建筑提供高效的太阳能发电。预期的进步还可能降低安装、模块和系统总成本。这个SBIR二期项目旨在将灵活高效的钙钛矿技术应用于太阳能的商业生产。该项目旨在开发一种最低可行产品(MVP)，目标是太阳能航空航天平台，并具有任何商业太阳能技术中最高的重量功率密度(W/kg)。双结或串联太阳能电池通过使用两层吸收太阳光谱互补部分的层，可以达到比传统单结电池高得多的功率转换效率(45%比32%)。这种串联电池以前对于主流应用来说过于昂贵。该项目使用钙钛矿材料，通过使用高通量制造和低成本材料，在柔性衬底上以比传统电池更低的成本制造串联太阳能电池。通过这个项目，该公司将验证其第一条产品线。预计这项高效、轻便的技术可能能够从空中车辆扩展到汽车和卡车等其他电动汽车。实现这些目标可能会为以比当今领先的太阳能技术低得多的成本生产高效和灵活的太阳能电池铺平道路。该奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。

This award is funded in whole or in part under the American Rescue Plan Act of 2021 (Public Law 117-2).The broader impact/commercial potential of this Small Business Innovation Research (SBIR) Phase II project is an opportunity to develop new applications that depend on mobile power and ultimately lower the cost of residential, commercial, and utility-scale solar power. The project seeks to develop extremely lightweight, flexible, and efficient photovoltaic (PV) modules using perovskite absorbers. These efficient, lightweight, and flexible modules may enable long-endurance unmanned aerial vehicles, supplemental charging for electric cars, and efficient solar power for commercial buildings with roofs too weak for typical solar panels. The anticipated advances may also lower installation, module, and total system costs. This SBIR Phase II project seeks to bring flexible and efficient perovskite technologies to the commercial production of solar power. The project seeks to develop a minimum viable product (MVP) that is targeted at solar-powered aerospace platforms and has the highest power density by weight (W/kg) of any commercial solar technology. Double-junction or tandem solar cells can reach far higher power conversion efficiencies than traditional single-junction cells (45% vs. 32%) by using two layers that absorb complementary parts of the solar spectrum. Such tandem cells have previously been too expensive for mainstream applications. This project uses perovskite materials to make tandem solar cells on flexible substrates at a lower cost than conventional cells by using high-throughput manufacturing and low cost materials. Through this project, the company will validate its first product line. It is expected that the efficient and lightweight technology may be able to be extended beyond airborne vehicles to other electric vehicles such as cars and trucks. Realizing these goals may pave the way for highly efficient and flexible solar cells at substantially lower costs than today’s leading solar technologies.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.