有機(jī)太陽能電池的陰極界面修飾
發(fā)布時(shí)間：2018-11-01 16:14
【摘要】：有機(jī)太陽能電池(OPV)以其質(zhì)量輕,成本低,制備工藝簡(jiǎn)單,方便制備柔性器件等優(yōu)勢(shì),近年來成為太陽能電池技術(shù)中的研究熱點(diǎn)。但是,OPV的實(shí)際應(yīng)用仍然存在著穩(wěn)定性差,相對(duì)效率不高,難以大面積制備等不足。界面修飾是改變這些缺點(diǎn)的主要途徑之一。因?yàn)榈怪媒Y(jié)構(gòu)器件具有更高的效率和更好的穩(wěn)定性,目前OPV常使用倒置結(jié)構(gòu)。倒置結(jié)構(gòu)中作為陰極的ITO具有較高的功函數(shù),因此,陰極界面修飾尤為重要。本文研究了倒置結(jié)構(gòu)器件中陰極界面修飾對(duì)有機(jī)太陽能電池性能及制備工藝的影響,通過對(duì)陰極界面修飾層的材料,制備方法,處理工藝等方面的的研究,設(shè)計(jì)了器件效果良好并且制備成本低廉的陰極界面修飾方法。具體工作分為以下三個(gè)部分:(1)制備了胺類聚合物C9作為陰極界面修飾層的倒置結(jié)構(gòu)OPV。研究了C9作為修飾材料的機(jī)理。同時(shí)研究了修飾層制備方法和處理工藝對(duì)器件性能的影響。實(shí)驗(yàn)結(jié)果表明,C9可以有效降低ITO陰極的功函數(shù),并且可以通過自組裝的方法制備,工藝簡(jiǎn)單。在基于P3HT:PC61BM有源層的玻璃器件中獲得了3.76%的效率,柔性器件中獲得了1.57%的效率,在基于PBDTTT-EFT:PC71BM的高性能器件中獲得了7.26%的效率。(2)制備了胺類小分子材料H-T作為陰極界面修飾層的倒置結(jié)構(gòu)OPV。研究了H-T作為修飾材料的機(jī)理。同時(shí)研究了修飾層制備方法和處理工藝對(duì)器件性能的影響。實(shí)驗(yàn)結(jié)果表明,H-T能有效修飾ITO陰極,在溶液制膜法中適合有機(jī)極性溶劑,在自組裝的過程中進(jìn)行溶劑退火,可以有效提高器件性能。在P3HT:PC61BM有源層的玻璃器件中獲得了3.19%的效率,柔性器件中獲得了1.46%的效率。(3)使用電鍍Pb后UVO處理的方法,制備了基于Pb的氧化物陰極界面修飾層OPV。研究了不同的電鍍輸出電流對(duì)器件性能的影響。結(jié)果表明,使用5mA電鍍30s獲得的器件效果最佳。使用NaOH溶液對(duì)修飾層進(jìn)行了進(jìn)一步處理,研究了不同的濃度的溶液處理對(duì)器件性能的影響。結(jié)果表明,對(duì)修飾層使用10mg/ml濃度的NaOH進(jìn)行處理,可以最大化地提升器件性能。在P3HT:PC61BM有源層的器件中獲得了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.
【學(xué)位授予單位】：南京郵電大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TM914.4
本文編號(hào)：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.
【學(xué)位授予單位】：南京郵電大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TM914.4
【參考文獻(xiàn)】
相關(guān)期刊論文 前1條
1 馮志慧;侯延冰;師全民;秦麗芳;李妍;張磊;劉小君;騰楓;王永生;夏瑞東;;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
，本文編號(hào)：2304440
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