本文選題：微透鏡陣列曲面 + 光伏玻璃基板�。� 參考：《華南理工大學》2015年碩士論文

【摘要】：微透鏡陣列結構和宏觀曲面的組合可以綜合微光學和宏觀光學的光學特性。因此,設想在薄膜太陽能電池的光伏玻璃表面加工出微透鏡結構曲面,探索新的光伏性能。但是,脆性玻璃的微加工困難,所以提出了一種將精密修整的金剛石砂輪微型尖端復制到光伏玻璃基板上的塑性域去除的微磨削方法。首先,對微透鏡陣列曲面的可見光吸收率進行微光學分析,優(yōu)化微結構尺寸;其次,對光伏玻璃基板的塑性域去除以及微磨削參數(shù)對表面粗糙度的影響進行了實驗分析;然后,建立了微透鏡陣列曲面的檢測模型,評價微結構微觀尺度誤差和宏觀曲面誤差;最后,對微透鏡陣列曲面的光伏特性進行應用研究。實驗結果表明,微結構的精密磨削和塑性域鏡面磨削工藝依賴于精密修整的砂輪微型尖端及其表面分布的微金剛石磨粒顆粒。在微磨削中,進給速度和零磨削次數(shù)分別是影響微透鏡陣列曲面的鏡面加工和精密加工的主要因素。微結構誤差和曲面誤差分別達到為6.7?m和10.3?m;其表面粗糙度達到27 nm。在薄膜太陽能電池的光伏玻璃基板的應用中,微透鏡陣列曲面可以在散射光條件下提高實驗室測試的光電轉(zhuǎn)換效率3.4?10.6%,而且,一個驚人的發(fā)現(xiàn)是,在晴天和多云下可以分別提高發(fā)電量約260%和419%,另外,陰天的發(fā)電能力比晴天的更強,這是因為微透鏡陣列曲面吸收周圍散射光然后均勻分散到電池薄膜上。
[Abstract]:The combination of microlens array structure and macroscopic surface can integrate the optical properties of micro optics and macro optics.Therefore, it is envisaged that microlens surface can be fabricated on the surface of photovoltaic glass of thin film solar cells to explore new photovoltaic properties.However, the micro-machining of brittle glass is difficult, so a micro-grinding method is proposed to remove the plastic domain of precision dressing diamond grinding wheel by copying the micro-tip of diamond grinding wheel to photovoltaic glass substrate.Firstly, the visible light absorptivity of the surface of the microlens array is analyzed by microoptics to optimize the size of the microstructure; secondly, the plastic domain removal of the photovoltaic glass substrate and the effect of the micro-grinding parameters on the surface roughness are analyzed experimentally.The detection model of micro lens array surface is established to evaluate the micro scale error and macro surface error. Finally, the photovoltaic characteristics of micro lens array surface are studied.The experimental results show that the precision grinding of micro structure and the mirror grinding in plastic domain depend on the fine dressing grinding wheel micro tip and its surface distribution of micro diamond abrasive particles.In micro grinding, feed speed and zero grinding times are the main factors that affect the mirror surface processing and precision machining of micro lens array surface, respectively.The microstructure error and surface error are 6.7 m and 10.3 m, respectively, and the surface roughness is 27 nm.In the application of photovoltaic glass substrates for thin film solar cells, the surface of the microlens array can improve the photovoltaic conversion efficiency of the laboratory tests under the condition of scattering light, and a surprising finding is that,The power generation can be increased by about 260% and 419% under sunny and cloudy conditions respectively. In addition, the generation capacity in cloudy days is stronger than that in sunny days, because the surface of the microlens array absorbs the scattered light around it and distributes it evenly over the thin film of the cell.
【學位授予單位】：華南理工大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TQ171.6

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本文編號：1771675