Optical Simulation for Multi-Striped Orthogonal Photon-Photocarrier-Propagation Solar Cell (MOP3SC) with Redirection Waveguide
Optical Simulation for Multi-Striped Orthogonal Photon-Photocarrier-Propagation Solar Cell (MOP3SC) with Redirection Waveguide
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DOI：
10.1007/s13319-016-0109-4
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发表时间：
2016-12
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影响因子：
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通讯作者：
A. Ishibashi;H. Kobayashi;T. Taniguchi;K. Kondo;T. Kasai
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文献类型：
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作者：
A. Ishibashi;H. Kobayashi;T. Taniguchi;K. Kondo;T. Kasai
本文计算了波导耦合正交光子-光生载流子传输太阳电池（MOP 3SC）的光场，其中光子沿与光生载流子方向正交的方向传输。通过利用光子传播的沿着自由度和使用多半导体条带，其中入射光子首先遇到最宽禁带半导体，最后遇到最宽禁带半导体，我们可以将几乎整个太阳光谱转换为电能，从而产生高转换效率。波导耦合MOP 3SC不仅可以优化光的吸收和光生载流子收集，独立地将几乎整个光谱的太阳光转换为电能，而且还可以作为一个高效的聚光太阳能电池系统，由于其最小的热耗散和漫射光转换能力，当与波导顶部的抛物线横截面结构一起使用时，温度上升很低。波导耦合的MOP 3SC作为高可靠性系统也具有潜在的意义，因为可能破坏材料结合的高能光子在上游已经被转换成电，永远不会进入中等或窄间隙半导体，导致MOP 3SC中使用的材料的低降解。
We have calculated optical fields for waveguide-coupled orthogonal photon-photocarrier propagation solar cell (MOP3SC)in which the photons propagate in the direction orthogonal to that of the photocarriers’. By exploiting the degree of freedom along the photon propagation and using multi-semiconductor stripes in which the incoming photons first encounter the widest gap semiconductor, and the narrowest at last, we can convert virtually the whole spectrum of solar spectrum into electricity resulting in high conversion efficiency. The waveguide-coupled MOP3SC can not only optimize the absorption of light and the photocarrier collection independently converting virtually the whole spectrum of sunlight into electricity, but also can serve as a highly efficient concentration solar-cell system with low temperature rise thanks to its minimal thermal dissipation and the diffusive-light-convertibility when used with the parabola cross-section structure on top of the waveguide. The waveguide-coupled MOP3SC is also of potential interest as a high reliability system, because the high energy photons that can damage bonding of the materials, being converted into electricity already at upstream, never go into the medium or narrow gap semiconductors, resulting in low degradation of materials used in the MOP3SC.