基于喷涂技术的聚合物太阳能电池制备与性能研究
发布时间：2019-04-03 06:05
【摘要】：有机太阳能电池以其制备工艺简单、成本低、可柔性等众多优点受到广泛的关注。随着有机太阳能电池光电转换效率的不断提高,其大规模生产的需要日渐凸显。近年来人们开发出许多与卷对卷技术兼容的可批量生产有机太阳能电池的新技术,其中喷涂技术以其设备简单、材料利用率高、对衬底要求不高等优点得到广泛的应用。喷涂技术制备小尺寸有机太阳能电池的研究已取得了一定的进展,然而其在制备大面积有机太阳能电池上的应用仍然较少,缺乏系统的研究和分析。本文以较成熟的有机电池材料和结构为基础,通过优化阳极缓冲层和有机功能层的喷涂条件提高小面积器件的性能,在此基础上采用喷涂技术制备大尺寸有机太阳能电池器件,并探索哪种结构和喷涂工艺制备的大尺寸有机太阳能电池器件性能最佳。主要研究内容包括：一、探索喷涂技术制备聚3,4-乙撑二氧噻吩：聚苯乙烯磺酸盐(PEDOT:PSS)薄膜时,喷涂流量、溶液浓度(采用去离子水稀释原始PEDOT:PSS溶液,原始PEDOT:PSS溶液的体积分数)以及基底温度对有机太阳能电池器件性能的影响。实验结果表明：喷涂流量为100ul/min、溶液浓度为66.7%、基底温度为100℃时器件的性能最佳,器件的光电转换效率由最初的0.79%提高到1.94%。二、探索喷涂技术制备聚3-己基噻吩：富勒烯衍生物(P3HT:PCBM)复合薄膜的膜厚、基底温度及热退火处理条件对器件性能的影响。实验结果表明：薄膜厚度为260nm、基底温度为130℃、采用130℃60s前热退火与130℃5min后热退火结合的热退火处理方式得到的有机太阳能电池器件的性能最佳,器件的光电转换效率由最初的0.13%提高到2.58%。三、研究器件有效面积对器件性能的影响及影响机制,并在此基础上探索大面积有机太阳能电池器件结构对器件性能的影响,发现采用串并联结构法制备的大面积器件性能最佳。最后通过优化串并联结构大面积器件的喷涂走向,将面积11.2cm2的串并联结构大面积器件的光电转换效率由0.91%提高到1.82%。本文对喷涂技术制备有机太阳能电池阳极缓冲层和有机功能层的条件进行了系统的探索,为喷涂技术制备有机太阳能电池的研究提供了有价值的参考；同时,采用喷涂技术制备了串并联结构大面积有机太阳能电池组件,并得到了较好的器件性能,进一步彰显了喷涂技术在大规模生产有机太阳能电池中的地位和发展前景。
[Abstract]:Organic solar cells have attracted much attention because of their simple fabrication process, low cost, flexibility and so on. With the continuous improvement of photoelectric conversion efficiency of organic solar cells, the need for large-scale production of organic solar cells is becoming more and more prominent. In recent years, many new technologies for mass production of organic solar cells compatible with roll-to-roll technology have been developed, in which spraying technology has been widely used because of its simple equipment, high material utilization and low demand for substrates. Although some progress has been made in the preparation of small-size organic solar cells by spraying technology, its application in the preparation of large-area organic solar cells is still rare and lack of systematic research and analysis. Based on the mature material and structure of organic battery, this paper improves the performance of small area devices by optimizing the spraying conditions of anode buffer layer and organic functional layer, on the basis of which, large size organic solar cell devices are fabricated by spraying technology, and the performance of small area devices is improved by optimizing the spraying conditions of anode buffer layer and organic functional layer. And explore which structure and spraying process of large-size organic solar cell device performance is the best. The main contents are as follows: first, the spray flow rate and solution concentration of poly (3,4-ethylenedioxythiophene: polystyrene sulfonate) (PEDOT:PSS) film prepared by spraying technology were explored. The original PEDOT:PSS solution was diluted by deionized water. The influence of volume fraction of original PEDOT:PSS solution and substrate temperature on the performance of organic solar cell devices. The experimental results show that when the spray flow rate is 100 ulmin, the solution concentration is 66.7% and the substrate temperature is 100 鈩，
本文编号：2452965
[Abstract]:Organic solar cells have attracted much attention because of their simple fabrication process, low cost, flexibility and so on. With the continuous improvement of photoelectric conversion efficiency of organic solar cells, the need for large-scale production of organic solar cells is becoming more and more prominent. In recent years, many new technologies for mass production of organic solar cells compatible with roll-to-roll technology have been developed, in which spraying technology has been widely used because of its simple equipment, high material utilization and low demand for substrates. Although some progress has been made in the preparation of small-size organic solar cells by spraying technology, its application in the preparation of large-area organic solar cells is still rare and lack of systematic research and analysis. Based on the mature material and structure of organic battery, this paper improves the performance of small area devices by optimizing the spraying conditions of anode buffer layer and organic functional layer, on the basis of which, large size organic solar cell devices are fabricated by spraying technology, and the performance of small area devices is improved by optimizing the spraying conditions of anode buffer layer and organic functional layer. And explore which structure and spraying process of large-size organic solar cell device performance is the best. The main contents are as follows: first, the spray flow rate and solution concentration of poly (3,4-ethylenedioxythiophene: polystyrene sulfonate) (PEDOT:PSS) film prepared by spraying technology were explored. The original PEDOT:PSS solution was diluted by deionized water. The influence of volume fraction of original PEDOT:PSS solution and substrate temperature on the performance of organic solar cell devices. The experimental results show that when the spray flow rate is 100 ulmin, the solution concentration is 66.7% and the substrate temperature is 100 鈩，
本文编号：2452965
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