SBIR Phase II: Improved Solution Processible Small Organic Molecule Architectures for Lightweight-Flexible Photovoltaics.

SBIR 第二阶段：改进的可解决方案处理的小有机分子架构，用于轻质灵活的光伏发电。

• 批准号: 1353618
• 负责人: Corey Hoven
• 金额: $ 75万
• 依托单位: Next Energy Technologies
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-03-01 至 2017-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1353618&HistoricalAwards=false
• 关键词: SBIR; Phase; II; Improved; Solution

This Small Business Innovation Research (SBIR) Phase II project will develop new soluble small molecules (SSM) and device architectures for organic (plastic) photovoltaic (OPV) technology. SSMs are low-cost plastic semiconductors that can be printed as an ink or spray painted onto conventional plastic sheets to fabricate extremely inexpensive, lightweight, and flexible solar cells. Development of organic solar cells has primarily been based on small molecules deposited from vapor (an expensive and constraining process) or solution-processed polymers; semiconducting polymers by nature are inherently impure and are limited to small batch sizes with inconsistencies between batches. SSM-OPV technology removes these critical development and manufacturing barriers. In this project we will further increase the power conversion efficiency (PCE) of our SSM-OPV cells by developing SSM-OPV tandem cells, which will increase the theoretical PCE limit as well as directly improve the actual PCE. Unlike conventional solar where the fabrication of multi-junction solar cells is complex and cost is prohibitively high, SSM-OPV is well suited for low cost tandem cell fabrication. Therefore this project will be addressing one of the most critical barriers to the commercialization of OPV technology.The broader impact/commercial potential of this project is the promise of very low-cost solar cells that are extremely lightweight and flexible, and which are domestically manufactured via low-cost roll-to-roll processing. These plastic solar cells promise to be substantially lighter and more flexible than existing technologies, with competitive efficiencies and lifetimes for the niche portable solar market and PV integrated roofing. The market for niche solar applications made from lightweight flexible photovoltaics includes stand-alone portable chargers for military and retail users as well as integrated systems including integration with tents, awnings, recreational vehicles, and membrane roofing. This market is relatively new and is quickly growing despite the fact the market needs are poorly met by currently available technologies. Currently available photovoltaics in the portable solar market have limited flexibility thereby increasing their collapsed volume and weight. While still new, the niche flexible/portable solar market is predicted to surpass 420MW and reach $600 million by 2020. The market for flexible building-integrated PV (BIPV) roofing products is projected to reach $3 billion by 2018. There is also potential that SSM-OPV technology could make inroads into the much larger utility scale market in the future.

这个小企业创新研究（SBIR）第二阶段项目将开发新的可溶性小分子（SSM）和有机（塑料）光伏（OPV）技术的设备架构。SSM是一种低成本的塑料半导体，可以作为油墨印刷或喷涂到传统的塑料板上，以制造极其便宜，重量轻，灵活的太阳能电池。有机太阳能电池的开发主要基于从蒸气（一种昂贵且受限的工艺）或溶液处理的聚合物沉积的小分子;半导体聚合物本质上是不纯的，并且限于小批量，批次之间不一致。SSM-OPV技术消除了这些关键的开发和制造障碍。 在本项目中，我们将通过开发SSM-OPV串联电池进一步提高我们SSM-OPV电池的功率转换效率（PCE），这将提高理论PCE极限并直接提高实际PCE。 与多结太阳能电池的制造复杂且成本高得令人望而却步的常规太阳能不同，SSM-OPV非常适合于低成本串联电池制造。因此，该项目将解决OPV技术商业化的最关键障碍之一。该项目更广泛的影响/商业潜力是极低成本的太阳能电池的承诺，这些太阳能电池非常轻和灵活，并且通过低成本的卷对卷加工在国内制造。 这些塑料太阳能电池有望比现有技术更轻，更灵活，在小型便携式太阳能市场和光伏集成屋顶上具有竞争力的效率和寿命。 由轻质柔性光电池制成的利基太阳能应用市场包括用于军事和零售用户的独立便携式充电器以及集成系统，包括与帐篷，遮阳篷，休闲车和膜屋顶的集成。 这一市场相对较新，尽管目前可用的技术很难满足市场需求，但仍在快速增长。便携式太阳能市场上目前可用的光致伸缩材料具有有限的灵活性，从而增加了它们的折叠体积和重量。虽然仍然是新的，但利基灵活/便携式太阳能市场预计将超过420兆瓦，到2020年将达到6亿美元。 到2018年，柔性建筑一体化光伏（BIPV）屋顶产品的市场预计将达到30亿美元。SSM-OPV技术也有可能在未来进入更大的公用事业规模市场。