Harnessing Surface Plasmons For Solar Energy Conversion
Harnessing Surface Plasmons For Solar Energy Conversion
复制标题
利用表面等离子体激元进行太阳能转换
DOI：
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发表时间：
1983
期刊：
影响因子：
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通讯作者：
L. M. Anderson
中科院分区：
文献类型：
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作者：
L. M. Anderson
NASA和大学赠款正在探索太阳能转换的电池处理概念，这是为1990年代设计50%效率的太阳能电池的高风险努力的一部分。其目的是克服与宽太阳光谱和用于在传统硅太阳能电池中传输能量的单能传导电子之间的失配相关的56%的损失（图1）。并行处理策略将使用表面等离子体或其他引导电磁波进行宽带能量传输，并使用可调谐二极管阵列进行能量提取（图2）。可调谐二极管的研究主要集中在金属-氧化物-半导体-金属薄膜中的非弹性隧穿，其想法是设计可以通过改变负载来调谐到不同频率的能量转换器件。本文介绍了必须克服的技术障碍，以利用表面等离子体的太阳能转换，并介绍了目前的研究四个关键问题：实用技术相匹配的太阳光表面等离子体，结构，以最大限度地减少欧姆损耗和再辐射，模式转换技术耦合到隧道二极管的能量，和结设计，以最大限度地提高等离子体捕获隧穿电子的概率。
Parallel-processing concepts for solar energy conversion are being explored at NASA and through university grants as part of a high-risk effort to design a 50% efficient solar cell for the 1990's. The aim is to overcome the 56% loss associated with mismatch between the broad solar spectrum and the monoenergetic conduction electrons used to transport energy in conventional silicon solar cells (Fig. 1). The parallel-processing strategy would use surface plasmons or other guided electromagnetic waves for broadband energy transport, and an array of tunable diodes for energy extraction (Fig. 2). Tunable diode research has focused on inelastic tunneling in metal-oxide-semiconductor-metal films, with the idea of designing energy conversion devices which can be tuned to different frequencies by varying the load. This paper describes the technical barriers which must be overcome in order to harness surface plasmons for solar energy conversion, and describes current research on four key problems: practical techniques to phase-match sunlight to surface plasmons, structures to minimize ohmic loss and reradiation, mode conversion techniques to couple energy into the tunnel diodes, and junction designs to maximize the probability of plasmon capture by tunneling electrons.