Novel Concepts for High-Efficiency Lightweight Space Solar Cells
Novel Concepts for High-Efficiency Lightweight Space Solar Cells
复制标题
高效轻型太空太阳能电池的新概念
DOI：
10.1051/e3sconf/20171603007
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发表时间：
2017
影响因子：
--
通讯作者：
Cappelluti F
中科院分区：
文献类型：
--
作者：
Cappelluti F
卫星光伏组件（PVA）的设计和开发的关键问题之一是位于PVA的可用体积，其质量和太阳能电池板必须保证航天器的总功率之间的权衡。因此，开发高效、灵活、轻便的太阳能电池有助于设计未来提供更好任务和服务的卫星。基于GaAs基单结和晶格匹配三结太阳能电池的综合开发，全球正在进行几项研究工作，以进一步提高效率和减少质量。有前途的方法包括薄膜技术，如反转变质和外延剥离（ELO），以及使用MBE生长的纳米结构或高度失配合金。我们在这里提出了一个替代路径的发展，轻量级的GaAs基太阳能电池的潜力，超过肖克利-奎瑟（SQ）限制的单结电池。我们的方法是基于薄膜设计，量子点（QD）的吸收，和光子纳米结构的协同组合。使用量子点提供的挑战和机遇进行了讨论。一个具有成本效益和可扩展的制造工艺，包括ELO技术和纳米压印光刻概述。最后，一个概念验证设计，严格的电磁和物理仿真的基础上，提出。效率高于30%，重量减轻接近90%-由于基板去除-使拟议的设备排名创纪录的功率重量比，有可能成为下一代空间太阳能电池的成本效益，有吸引力的选择。
One of the key issues in the design and development of a satellite Photovoltaic Assembly (PVA) is the trade-off to be made between the available volume located to the PVA, its mass and the total amount of power that the solar panels have to guarantee to the spacecraft. The development of high-efficiency, flexible, lightweight solar cells is therefore instrumental to the design of future satellites providing enhanced missions and services. Based on the consolidated development of GaAs-based single junction and lattice matched triplejunction solar cells, several research efforts are being pursued worldwide to further increase the efficiency and reduce mass. Promising approaches include thin-film technologies such as Inverted Metamorphic and Epitaxial Lift-Off (ELO), and the use of nanostructures or highly mismatched alloys grown by MBE. We propose here an alternative path towards the development of lightweight GaAs-based solar cells with the potential to exceed the Shockley-Queisser (SQ) limit of single junction cells. Our approach is based on the synergistic combination of thin-film design, quantum dots (QDs) absorption, and photonic nanostructures. Challenges and opportunities offered by the use of QDs are discussed. A cost-effective and scalable fabrication process including ELO technology and nanoimprint lithography is outlined. Finally, a proof-of-concept design, based on rigorous electromagnetic and physicsbased simulations, is presented. Efficiency higher than 30% and weight reduction close to 90%-owing to the substrate removal-makes the proposed device to rank record power-to-weight ratio, with the potential to become a cost-effective, attractive option for next generation space solar cells.
影响因子：
6.9
作者：
F. Cappelluti;M. Gioannini;Arastoo Khalili
通讯作者：
F. Cappelluti;M. Gioannini;Arastoo Khalili
量子点太阳能电池的 Delta 掺杂效应
影响因子：
3
作者：
S. Polly;D. Forbes;K. Driscoll;Staffan Hellstrom;S. Hubbard
通讯作者：
S. Hubbard
量子点太阳能电池的仿真，包括载流子子带间动力学和输运
影响因子：
3
作者：
M. Gioannini;A. Cédola;Natale Di Santo;F. Bertazzi;F. Cappelluti
通讯作者：
F. Cappelluti