SBIR Phase I: Internal Photo Emission Energy Converters Based on a Wide Band Perfectly Absorbing Nanocomposite Metamaterial

SBIR 第一阶段：基于宽带完美吸收纳米复合超材料的内部光发射能量转换器

• 批准号: 1315307
• 负责人: BalaKrishna Juluri
• 金额: $ 15万
• 依托单位: Pacific Integrated Energy
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-07-01 至 2014-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1315307&HistoricalAwards=false
• 关键词: SBIR; Phase; Internal; Photo; Emission

This Small Business Innovation Research Phase (SBIR) I project aims to develop a new class of solar cell based on an internal photoemission device geometrically configured as a near perfect, broadband, isotropic absorber. Realizing the potential of this technology would bring to market a solar cell that is commercially competitive with other solar technologies on a cost per watt basis and are able to fabricated on a flexible substrate. Internal photo-emission converters have received renewed interest, but published power conversion efficiencies are well below the theoretical limit. A primary limiting factor in previous attempts has been limited light absorption in the metal. Our preliminary simulations and tests show enhanced light absorption across a broad range of angles and wavelengths when the absorbing metal is configured in a nanocomposite layer in a perfect absorber structure. The objective of Phase I is to validate the preliminary simulations by fabricating and testing a functioning device.The broader impact/commercial potential of this project is primarily in the field of solar energy conversion. Successful completion of Phase I and Phase II of this research and development effort will enable commercialization of a low cost and long lifetime solar cell technology that can be manufactured on a flexible substrate using roll-to-roll processing techniques. This technology will provide a new cost competitive entry into the flexible and conformable solar cell market.

这个小型企业创新研究阶段 (SBIR) I 项目旨在开发一种新型太阳能电池，其基于几何配置为近乎完美的宽带各向同性吸收器的内部光电发射器件。认识到这项技术的潜力将为市场带来一种太阳能电池，这种太阳能电池在每瓦成本的基础上与其他太阳能技术相比具有商业竞争力，并且能够在柔性基板上制造。内部光电发射转换器重新引起了人们的兴趣，但已公布的功率转换效率远低于理论极限。 先前尝试中的主要限制因素是金属中的光吸收有限。我们的初步模拟和测试表明，当吸收金属配置在完美吸收器结构的纳米复合材料层中时，在广泛的角度和波长范围内的光吸收会增强。第一阶段的目标是通过制造和测试功能设备来验证初步模拟。该项目更广泛的影响/商业潜力主要在太阳能转换领域。这项研发工作第一阶段和第二阶段的成功完成将使低成本、长寿命的太阳能电池技术商业化，该技术可以使用卷对卷加工技术在柔性基板上制造。该技术将为进入灵活、舒适的太阳能电池市场提供一种新的具有成本竞争力的途径。