本文選題：有機(jī)太陽能電池 + 有機(jī)紅外光探測器�。� 參考：《太原理工大學(xué)》2017年碩士論文

【摘要】：有機(jī)太陽能電池和有機(jī)紅外光探測器具有制備成本低廉、易于大面積生產(chǎn)、對環(huán)境污染小等優(yōu)點(diǎn),受到了人們的廣泛關(guān)注。研究人員從高效聚合物的合成、新型器件結(jié)構(gòu)的設(shè)計等方面出發(fā),逐步提高有機(jī)太陽能電池和有機(jī)紅外光探測器的性能。然而,有機(jī)太陽能電池的光電轉(zhuǎn)換效率(PCE)以及其在空氣中的穩(wěn)定性,都無法與傳統(tǒng)的硅基太陽能電池相媲美;有機(jī)紅外光探測器也存在光響應(yīng)度和光探測率不高等缺點(diǎn)。本文的工作主要分為兩個部分:第一,通過不同極性的有機(jī)溶劑處理有機(jī)太陽能電池的空穴傳輸層PEDOT:PSS,提高了PEDOT:PSS的電導(dǎo)率,并利用處理之后的PEDOT:PSS提高了基于PTB7有機(jī)太陽能電池的效率。第二,制備了一種活性層為PTB7:CNT:PCBM的有機(jī)紅外光探測器,利用有機(jī)聚合物PTB7的光生偶極子,促進(jìn)碳納米管CNT內(nèi)部光生激子的解離,從而提高探測器的紅外光響應(yīng)度和探測率。本文的主要研究內(nèi)容如下:1.利用極性較大的六種有機(jī)溶劑二甲基甲酰胺、二甲基亞砜、甲酰胺、甲醇、乙醇、異丙醇,分別處理PEDOT:PSS水溶液,研究了不同極性溶劑對PEDOT:PSS的電導(dǎo)率產(chǎn)生的影響。結(jié)果表明,二甲基亞砜對PEDOT:PSS導(dǎo)電性的提高最為明顯。2.本文選用二甲基亞砜處理PEDOT:PSS,并制備了結(jié)構(gòu)為ITO/PEDOT:PSS(DMSO處理)/PTB7:PCBM/ZnO/Al的有機(jī)太陽能電池,通過優(yōu)化二甲基亞砜的摻雜比例,最終使器件的光電轉(zhuǎn)換效率從6.3%提高到6.5%。且器件在空氣中的穩(wěn)定性也得到了提升。3.制備了一種結(jié)構(gòu)為ITO/PEDOT:PSS/PTB7:CNT:PCBM/ZnO/Al的有機(jī)紅外光探測器。本文從活性層溶液濃度和碳納米管的摻雜比例入手,優(yōu)化了器件的性能,獲得了一種高效的紅外光探測器,器件在波長為1100 nm處的探測率高達(dá)2.3×1011 Jones。4.通過與結(jié)構(gòu)為ITO/PEDOT:PSS/P3HT:CNT:PCBM/ZnO/Al的有機(jī)紅外光探測器對比,證明了偶極聚合物PTB7中的光生偶極子可以增強(qiáng)器件的內(nèi)建電場,從而促進(jìn)了納米碳管CNT內(nèi)部光生激子的解離,并且,光生偶極子的數(shù)目與激子的解離率成正比。
[Abstract]:Organic solar cells and organic infrared detectors have been paid more and more attention due to their advantages of low cost, easy to produce in large areas and low pollution to the environment. In order to improve the performance of organic solar cells and infrared detectors, the researchers began to improve the performance of organic solar cells and infrared detectors from the aspects of the synthesis of high efficiency polymers and the design of new device structures. However, the photovoltaic conversion efficiency of organic solar cells (PCEs) and its stability in the air are not comparable to those of traditional silicon based solar cells. The work of this paper is mainly divided into two parts: first, the conductivity of PEDOT: PSS is improved by treating the hole transport layer PEDOT: PSSs of organic solar cells with different polarity organic solvents. The efficiency of organic solar cells based on PTB 7 was improved by PEDOT: PSS. Secondly, an organic infrared photodetector with an active layer of PTB7: CNT: PCBM was prepared. The photoinduced dipole of the organic polymer PTB7 was used to promote the photodissociation of the photoexcitons in CNT, so as to improve the infrared photoresponse and detection rate of the detector. The main contents of this paper are as follows: 1. The effects of polarity solvents such as dimethylformamide, dimethyl sulfoxide, formamide, methanol, ethanol and isopropanol on the conductivity of PEDOT: PSS were studied. The results showed that dimethyl sulfoxide enhanced the conductivity of PEDOT: PSS most obviously. In this paper, dimethyl sulfoxide (DMSO) was used to treat PEDOT: PSSs, and an organic solar cell with the structure of ITO / PEDOT: PSSDMSO / PTB7: PCBMP / ZnO / Al was prepared. By optimizing the doping ratio of dimethyl sulfoxide, the photoelectric conversion efficiency of the device was improved from 6.3% to 6.5%. And the stability of the device in the air has also been improved. 3. An organic infrared detector with the structure of ITO / PEDOT: PSS / PTB 7: CNT: PCBM / ZnO / Al was prepared. Based on the concentration of active layer solution and the doping ratio of carbon nanotubes, the performance of the device is optimized, and an efficient infrared detector is obtained. The detector's detectivity is as high as 2.3 脳 1011 Jones.4at 1100 nm. By comparing with the organic infrared detector with the structure of ITO / PEDOT: PSS / P3HT: CNT: PCBMR / ZnO / Al, it is proved that the photoinduced dipole in the dipolar polymer PTB7 can enhance the internal electric field of the device, thus promoting the dissociation of the photonic excitons in the CNT nanotube. The number of photoinduced dipoles is proportional to the dissociation rate of excitons.
【學(xué)位授予單位】：太原理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TM914.4;TN215
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本文編號：1998459