有机太阳能电池的阴极界面修饰
发布时间：2018-11-01 16:14
【摘要】：有机太阳能电池(OPV)以其质量轻,成本低,制备工艺简单,方便制备柔性器件等优势,近年来成为太阳能电池技术中的研究热点。但是,OPV的实际应用仍然存在着稳定性差,相对效率不高,难以大面积制备等不足。界面修饰是改变这些缺点的主要途径之一。因为倒置结构器件具有更高的效率和更好的稳定性,目前OPV常使用倒置结构。倒置结构中作为阴极的ITO具有较高的功函数,因此,阴极界面修饰尤为重要。本文研究了倒置结构器件中阴极界面修饰对有机太阳能电池性能及制备工艺的影响,通过对阴极界面修饰层的材料,制备方法,处理工艺等方面的的研究,设计了器件效果良好并且制备成本低廉的阴极界面修饰方法。具体工作分为以下三个部分:(1)制备了胺类聚合物C9作为阴极界面修饰层的倒置结构OPV。研究了C9作为修饰材料的机理。同时研究了修饰层制备方法和处理工艺对器件性能的影响。实验结果表明,C9可以有效降低ITO阴极的功函数,并且可以通过自组装的方法制备,工艺简单。在基于P3HT:PC61BM有源层的玻璃器件中获得了3.76%的效率,柔性器件中获得了1.57%的效率,在基于PBDTTT-EFT:PC71BM的高性能器件中获得了7.26%的效率。(2)制备了胺类小分子材料H-T作为阴极界面修饰层的倒置结构OPV。研究了H-T作为修饰材料的机理。同时研究了修饰层制备方法和处理工艺对器件性能的影响。实验结果表明,H-T能有效修饰ITO阴极,在溶液制膜法中适合有机极性溶剂,在自组装的过程中进行溶剂退火,可以有效提高器件性能。在P3HT:PC61BM有源层的玻璃器件中获得了3.19%的效率,柔性器件中获得了1.46%的效率。(3)使用电镀Pb后UVO处理的方法,制备了基于Pb的氧化物阴极界面修饰层OPV。研究了不同的电镀输出电流对器件性能的影响。结果表明,使用5mA电镀30s获得的器件效果最佳。使用NaOH溶液对修饰层进行了进一步处理,研究了不同的浓度的溶液处理对器件性能的影响。结果表明,对修饰层使用10mg/ml浓度的NaOH进行处理,可以最大化地提升器件性能。在P3HT:PC61BM有源层的器件中获得了3.19%的效率。
[Abstract]:Organic solar cell (OPV), with its advantages of light weight, low cost, simple preparation process and convenient fabrication of flexible devices, has become a research hotspot in solar cell technology in recent years. However, the practical application of OPV still has some shortcomings, such as poor stability, low relative efficiency and difficulty in large area preparation. Interfacial modification is one of the main ways to change these shortcomings. The inverted structure is often used in OPV because of its higher efficiency and better stability. The ITO as cathode in inverted structure has a high work function, so it is very important to modify the cathode interface. In this paper, the effect of cathode interface modification on the performance and preparation process of organic solar cells in inverted structure devices is studied. The material, preparation method and treatment process of cathode interface modification layer are studied. The cathode interface modification method with good effect and low cost was designed. The specific work is divided into the following three parts: (1) Amine polymer C9 has been prepared as the cathode interface modification layer of inverted structure OPV. The mechanism of C _ 9 as a modified material was studied. At the same time, the effect of preparation method and treatment process on the performance of the device was studied. The experimental results show that C9 can effectively reduce the work function of ITO cathode, and can be prepared by self-assembly method, and the process is simple. The efficiency is 3.76% in glass devices based on P3HT:PC61BM active layer and 1.57% in flexible devices. The efficiency of 7.26% was obtained in high performance devices based on PBDTTT-EFT:PC71BM. (2) OPV. with inverted structure was prepared by using H-T as cathode interface modification layer. The mechanism of H-T as a modified material was studied. At the same time, the effect of preparation method and treatment process on the performance of the device was studied. The experimental results show that H-T can effectively modify the ITO cathode, be suitable for organic polar solvent in the solution preparation process, and be annealed in the process of self-assembly, which can effectively improve the performance of the device. The efficiency is 3.19% in P3HT:PC61BM active layer glass devices and 1.46% in flexible devices. (3) the oxide cathode interface modified layer (OPV.) based on Pb is fabricated by using UVO treatment method after electroplating Pb. The effect of different electroplating output current on the performance of the device was studied. The results show that the device obtained by 5mA electroplating for 30s has the best effect. The modified layer was further treated with NaOH solution, and the effect of different concentration of solution on the performance of the device was studied. The results show that the performance of the modified layer can be maximized by the treatment of NaOH with 10mg/ml concentration. An efficiency of 3.19% is achieved in P3HT:PC61BM active layer devices.
【学位授予单位】：南京邮电大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM914.4
本文编号：2304440
[Abstract]:Organic solar cell (OPV), with its advantages of light weight, low cost, simple preparation process and convenient fabrication of flexible devices, has become a research hotspot in solar cell technology in recent years. However, the practical application of OPV still has some shortcomings, such as poor stability, low relative efficiency and difficulty in large area preparation. Interfacial modification is one of the main ways to change these shortcomings. The inverted structure is often used in OPV because of its higher efficiency and better stability. The ITO as cathode in inverted structure has a high work function, so it is very important to modify the cathode interface. In this paper, the effect of cathode interface modification on the performance and preparation process of organic solar cells in inverted structure devices is studied. The material, preparation method and treatment process of cathode interface modification layer are studied. The cathode interface modification method with good effect and low cost was designed. The specific work is divided into the following three parts: (1) Amine polymer C9 has been prepared as the cathode interface modification layer of inverted structure OPV. The mechanism of C _ 9 as a modified material was studied. At the same time, the effect of preparation method and treatment process on the performance of the device was studied. The experimental results show that C9 can effectively reduce the work function of ITO cathode, and can be prepared by self-assembly method, and the process is simple. The efficiency is 3.76% in glass devices based on P3HT:PC61BM active layer and 1.57% in flexible devices. The efficiency of 7.26% was obtained in high performance devices based on PBDTTT-EFT:PC71BM. (2) OPV. with inverted structure was prepared by using H-T as cathode interface modification layer. The mechanism of H-T as a modified material was studied. At the same time, the effect of preparation method and treatment process on the performance of the device was studied. The experimental results show that H-T can effectively modify the ITO cathode, be suitable for organic polar solvent in the solution preparation process, and be annealed in the process of self-assembly, which can effectively improve the performance of the device. The efficiency is 3.19% in P3HT:PC61BM active layer glass devices and 1.46% in flexible devices. (3) the oxide cathode interface modified layer (OPV.) based on Pb is fabricated by using UVO treatment method after electroplating Pb. The effect of different electroplating output current on the performance of the device was studied. The results show that the device obtained by 5mA electroplating for 30s has the best effect. The modified layer was further treated with NaOH solution, and the effect of different concentration of solution on the performance of the device was studied. The results show that the performance of the modified layer can be maximized by the treatment of NaOH with 10mg/ml concentration. An efficiency of 3.19% is achieved in P3HT:PC61BM active layer devices.
【学位授予单位】：南京邮电大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM914.4
【参考文献】
相关期刊论文 前1条
1 冯志慧;侯延冰;师全民;秦丽芳;李妍;张磊;刘小君;腾枫;王永生;夏瑞东;;Polymer solar cells based on a PEDOT:PSS layer spin-coated under the action of an electric field[J];Chinese Physics B;2010年03期
，本文编号：2304440
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