Microlens Structures for Flexible Waveguiding Solar Photovoltaics

• Main Authors: Chuang, Jui-Kang, 莊睿綱
• Other Authors: Chen, Fang-Chung
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/41537921924267812534

碩士 === 國立交通大學 === 光電系統研究所 === 101 === In this study, we describe flexibility waveguiding photovoltaics (FWPVs) that exhibit higher optical efficiencies with microlens structure than flat-plane. Optical microstructure that increase the light harvesting ability of the FWPVs can be fabricated readily, through soft lithography, on the top surface of the PDMS waveguide. Our optimized microlens structure displayed power conversion efficiency (PCE) of greater than 1.92%. For a waveguiding solar moldule, the major photon losses arise from the top surfaces and edges. According to the measurement of optical loss from the edge in our waveguiding solar module, we found that the focal length affected the intensity significantly; the optimal value of focal length was 5.0 mm. On the other hand, measurement of the top surface losses suggested that degree of photon loss increased upon increasing the interval between the lens. In the end, we used a commercial ray-tracing software to simulate the experimental results. And simulation has emerged recently as an important aid to prove our speculation.