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Regional measurements to analyze large-area luminescent solar concentrators
Renewable Energy ( IF 9.0 ) Pub Date : 2020-11-01 , DOI: 10.1016/j.renene.2020.06.121
Yilin Li , Yujian Sun , Yongcao Zhang

Abstract Experimentally analyzing the photovoltaic (PV) performance and the photon transport mechanism of large-area luminescent solar concentrators (LSCs) (>200 cm2) has proven difficult because common solar simulators and integrating spheres have limited measuring capacity. This report introduces an approach of regional measurements to address these issues using common laboratory instruments. In this approach, the LSC is configured to have different surface and edge regions. The surface regions are sequentially illuminated by a low-cost solar simulator, and the edge regions sequentially measured by a small-area solar cell or a general photoluminescence (PL) spectrometer. The methodology is validated through the comparison with the conventional method and Monte Carlo ray-tracing simulation in the study of the PV performance of a series of R305-based LSCs. Experimental results from the regional measurements reveal important the photon transport mechanism of the LSCs. The results show that severe photon transport loss exists within a surface distance (dsurf) of 5 inches (12.7 cm), and photons with the longest average transport distance ( max) experience number of absorption events (Nabs) for an average of 11.3 times. The approach of regional measurements can effectively measure the PV performance and investigate the photon transport mechanism of large-area LSCs.

中文翻译:

分析大面积发光太阳能聚光器的区域测量

摘要 实验分析大面积发光太阳能聚光器 (LSC) (>200 cm2) 的光伏 (PV) 性能和光子传输机制已被证明是困难的,因为常见的太阳模拟器和积分球的测量能力有限。本报告介绍了一种区域测量方法,以使用常用实验室仪器解决这些问题。在这种方法中,LSC 被配置为具有不同的表面和边缘区域。表面区域由低成本的太阳能模拟器依次照射,边缘区域由小面积太阳能电池或通用光致发光 (PL) 光谱仪依次测量。在一系列基于 R305 的 LSC 的光伏性能研究中,该方法通过与传统方法和蒙特卡罗射线追踪模拟的比较得到验证。区域测量的实验结果揭示了 LSC 的重要光子传输机制。结果表明,在5英寸(12.7厘米)的表面距离(dsurf)内存在严重的光子传输损失,平均传输距离最长(max)的光子平均经历了11.3次吸收事件(Nabs)。区域测量的方法可以有效地测量光伏性能并研究大面积 LSC 的光子传输机制。结果表明,在5英寸(12.7厘米)的表面距离(dsurf)内存在严重的光子传输损失,平均传输距离最长(max)的光子平均经历了11.3次吸收事件(Nabs)。区域测量的方法可以有效地测量光伏性能并研究大面积 LSC 的光子传输机制。结果表明,在5英寸(12.7厘米)的表面距离(dsurf)内存在严重的光子传输损失,平均传输距离最长(max)的光子平均经历了11.3次吸收事件(Nabs)。区域测量的方法可以有效地测量光伏性能并研究大面积 LSC 的光子传输机制。
更新日期:2020-11-01
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