發(fā)布時間：2019-06-18 23:06

【摘要】：聚合物太陽電池（Polymer Solar Cells, PSCs）是一種新型太陽電池，由于其擁有諸多優(yōu)點，目前已經(jīng)成為太陽電池領(lǐng)域被研究的一大熱點。然而PSCs現(xiàn)今仍面臨許多問題，比如器件的能量轉(zhuǎn)換效率(Power Conversion Efficiency,PCE)較低且穩(wěn)定性較差等，還不能如傳統(tǒng)的無機太陽電池一樣實現(xiàn)商業(yè)化。 導(dǎo)電聚合物聚(3,4-乙撐二氧噻吩)：聚苯乙烯磺酸鹽(PEDOT:PSS)因為透過率高、在空氣中穩(wěn)定和應(yīng)用方便等優(yōu)點，已經(jīng)被廣泛應(yīng)用到有機太陽電池等領(lǐng)域中。利用摻雜劑對PEDOT:PSS薄膜進行優(yōu)化，是提高PSCs性能的重要方法之一。本文主要圍繞摻雜劑處理過的PEDOT:PSS薄膜的優(yōu)化效果及該薄膜作為陽極修飾層制備的PSCs展開相關(guān)研究工作。 本論文研究的主要目的是通過摻雜劑優(yōu)化PEDOT:PSS薄膜進而提高PSCs的PCE等，主要工作分為兩個內(nèi)容，即不同體積分數(shù)的二甲基亞砜(DMSO)、甘油和乙腈分別對PEDOT:PSS薄膜進行摻雜優(yōu)化研究、及它們作為PSCs的陽極修飾層的研究。其中，，乙腈作為摻雜劑對PEDOT:PSS進行摻雜處理以前沒有報道過。 本實驗首先研究了DMSO、甘油和乙腈三種摻雜劑分別以不同體積分數(shù)加入PEDOT:PSS共混液中旋涂獲得的薄膜的光學(xué)性能、導(dǎo)電性能、表面粗糙度等。為了獲得DMSO、甘油和乙腈三種摻雜劑分別對PEDOT:PSS薄膜的優(yōu)化機制，進而對用三種摻雜劑分別處理過的PEDOT:PSS溶液進行傅里葉紅外光譜測試。然后，本文還對DMSO、甘油和乙腈三種摻雜劑分別以不同體積分數(shù)加入PEDOT:PSS共混液中旋涂獲得的薄膜制備的PSCs進行了研究。本實驗的PSCs的結(jié)構(gòu)為ITO/PEDOT:PSS/聚3-己基噻吩(P3HT):[6,6]-phenyl-C61-butyric acid methyl ester (PCBM)/Ca/Al。文章中詳細的介紹了PEDOT:PSS摻雜共混液的配置過程及電池的制備過程。 DMSO、甘油和乙腈分別處理過的PEDOT:PSS薄膜的透過率大都會有少許提高，此外，各個薄膜電導(dǎo)率明顯得到很大的提高，特別是在摻雜體積分數(shù)為3%時提高最多。由三種摻雜劑處理過的PEDOT:PSS溶液的傅里葉紅外光譜圖可獲得，DMSO或者乙腈的加入沒有改變PEDOT:PSS的分子結(jié)構(gòu)，即DMSO或乙腈的摻雜導(dǎo)致PEDOT:PSS薄膜電導(dǎo)率增加的機理與聚合物鏈的構(gòu)象變化基本沒有關(guān)系；添加甘油后，PEDOT:PSS的分子鍵會發(fā)生微小的變化，進而也會影響到PEDOT:PSS形成的導(dǎo)電網(wǎng)絡(luò)。 在研究摻雜DMSO的PEDOT:PSS薄膜的實驗中，分別對摻雜0%、3%、5%、10%、15%、20%DMSO的PEDOT:PSS薄膜及其作為陽極修飾層制備的PSCs進行研究。研究結(jié)果發(fā)現(xiàn)，未摻雜的薄膜的電導(dǎo)率為0.28S/cm，相應(yīng)器件的PCE為0.66%；摻雜3%DMSO時，PEDOT:PSS薄膜的電導(dǎo)率達到最大，為41.52S/cm，相應(yīng)器件的PCE最高，為3.79%，此時短路電流密度(Jsc)達18.31mA/cm2，開路電壓(Voc)達0.53V，填充因子(Fill Factor,FF)為39.1%。 本文也對摻雜0%、3%、5%、10%、15%、20%甘油和乙腈的PEDOT:PSS薄膜及其作為陽極修飾層制備的PSCs分別進行了研究。實驗數(shù)據(jù)表明，摻雜后PEDOT:PSS薄膜的電導(dǎo)率均是先增加后減小，摻雜3%時，電導(dǎo)率的增加非常明顯。摻雜3%甘油的薄膜制備的器件PCE也是最大的，為2.70%。摻雜3%乙腈的PEDOT:PSS薄膜制備的器件PCE也是最大的，為1.27%。。 對比以上三種摻雜劑分別對PEDOT:PSS的摻雜效果，發(fā)現(xiàn)三種摻雜劑均是在摻雜濃度為3%時，器件的能量轉(zhuǎn)換效率達到最高，且摻雜3%DMSO的器件能量轉(zhuǎn)換效率最高。
[Abstract]:Polymer Solar Cells (PSCs) is a new type of solar cell. Because of its many advantages, it has become a hot spot in the field of solar cells. However, PSCs are still facing a number of problems, such as the low energy conversion efficiency (PCE) of the device and poor stability, and can not be commercialized as traditional inorganic solar cells. Conductive polymer poly (3,4-dioxydioxolane): polystyrene sulfonate (PEDOT: PSS) has been widely used in the field of organic solar cells because of its high transmittance, stable and convenient application in air, etc. It is an important method to improve the performance of PSCs by using the dopant to optimize the PEDOT: PSS film. I. The optimization effect of the PEDOT: PSS film treated with the dopant and the PSCs prepared by the thin film as the anode modification layer are studied. The main purpose of this paper is to optimize the PEDOT: PSS thin film by the dopant so as to improve the PCE of the PSCs, etc. The main work is divided into two contents, i.e., the different volume fraction of the dimethylaniline (DMSO), the glycerol and the acetonitrile are respectively doped with the PEDOT: PSS film. Chemical studies and their anode-modified layers as PSCs in which acetonitrile is not used as a dopant for the doping treatment of the pedot: pss before the doping treatment of the pedot: pss, The optical properties, the conductivity and the properties of the film obtained by spin-coating of the three kinds of dopants of DMSO, glycerol and acetonitrile were studied in different volume fractions, respectively. In order to obtain the optimum mechanism of the three kinds of dopants of DMSO, glycerol and acetonitrile to PEDOT: PSS film, the PEDOT: PSS solution treated with three kinds of dopants is then subjected to Fourier transform. And then adding the three kinds of dopants of DMSO, glycerol and acetonitrile into the PSCs prepared by spin-coating of the PEDOT: PSS co-mixed solution with different volume fractions, respectively. The structure of the PSCs of this experiment is ITO/ PEDOT: PSS/ poly 3-hexyl phthalate (P3HT):[6,6]-phenyl-C61-butyric acid methyl ester (PCBM)/ The configuration process and the battery of PEDOT: PSS-doped co-mixed solution are described in detail in the paper. The preparation process of the PEDOT: PSS thin film treated by DMSO, glycerol and acetonitrile is slightly improved, and the conductivity of each film is obviously improved, especially when the doping volume fraction is Up to 3% increase. The FTIR spectrum of the PEDOT: PSS solution treated with the three dopants can be obtained. The addition of DMSO or acetonitrile does not change the molecular structure of the PEDOT: PSS, that is, the doping of DMSO or acetonitrile results in the increase of the conductivity of the PEDOT: PSS film and the conformation of the polymer chain. There is essentially no relationship; after the addition of glycerol, the molecular bond of PEDOT: PSS will change slightly and will also affect PEDOT: PSS A PEDOT: PSS thin film doped with 0%,3%,5%,10%,15%,20% DMSO, and its preparation as an anode modification layer were prepared in the experiments on the study of the PEDOT: PSS thin film doped with DMSO. The results show that the conductivity of the undoped thin film is 0.28 S/ cm, the PCE of the corresponding device is 0.66%, when the 3% DMSO is doped, the conductivity of the PEDOT: PSS film reaches the maximum of 41.52 S/ cm and the PCE of the corresponding device is 3.79%. At this time, the short-circuit current density (Jsc) reaches 18.31 mA/ cm2, and the open circuit voltage (V c) up to 0.53 v, fill factor (fill factor, A PEDOT: PSS film doped with 0%,3%,5%,10%,15%,20% glycerol and acetonitrile was also used in this paper as an anode modified layer. The results of the experiment show that the conductivity of the PEDOT: PSS film after doping is reduced and the doping is 3%. and the increase of the conductivity is very obvious. the device pce prepared by the thin film doped with 3% glycerol also is the largest, 2.70%. The device pce prepared by the pedot: pss film doped with 3% acetonitrile is also The doping effect of the above three dopants on the PEDOT: PSS is the highest, and the energy conversion efficiency of the device reaches the highest when the doping concentration is 3%, and the doping is 3% DM.
【學(xué)位授予單位】：江南大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TM914.4

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