【摘要】：有機(jī)/無機(jī)雜化鈣鈦礦太陽電池作為一種極具潛力的光伏技術(shù),具有制備工藝簡單、成本低廉、效率高等諸多優(yōu)勢,因而受到廣泛的關(guān)注。而有機(jī)薄膜太陽能電池和聚合物太陽能電池在制備大面積、輕質(zhì)、柔性的器件方面具有獨(dú)特的優(yōu)勢,同樣備受關(guān)注。本論文研究內(nèi)容主要包括以下幾個方面:1.基于溶液法制備了反置結(jié)構(gòu)MAPb I3鈣鈦礦太陽能電池,并對其穩(wěn)態(tài)電荷傳輸特性等相關(guān)的光電特性進(jìn)行了研究。通過調(diào)整不同的MAPb I3薄膜厚度,系統(tǒng)地研究了鈣鈦礦太陽能電池中的載流子遷移率、缺陷密度和電荷復(fù)合等性能參數(shù)。研究結(jié)果表明,在MAPb I3太陽能電池中載流子遷移率可能不是光電流損失的主要限制因素;缺陷態(tài)是影響器件性能的重要原因。2.合成Zn O納米粒子,將其作為電子傳輸層/空穴阻擋層,并應(yīng)用于PTB7-Th:PC71BM有機(jī)本體異質(zhì)結(jié)太陽能電池中。研究了Zn O納米粒子的分散劑、粒子層厚度對器件的效率及穩(wěn)定的影響。研究表明,Zn O納米粒子對器件效率及穩(wěn)定性的影響顯著。最終在最優(yōu)化的條件下我們將PTB7-Th:PC71BM太陽能電池的效率,由8.4%提升到了9.2%。3.比較研究了三種不同太陽能電池器件PBDB-T:ITIC、PBDB-T:P(NDI2OD-T2)、PBDB-T:PC71BM的載流子遷移率的溫度響應(yīng)和雙分子復(fù)合機(jī)制。結(jié)果表明,即便在載流子不平衡的情況下,PBDB-T:ITIC太陽能電池依然可以達(dá)到PCE接近10%的高效率,這主要?dú)w功于其具有較高的Jsc,而且器件的光電特性不僅僅與其傳輸性能相關(guān),還與其電荷復(fù)合強(qiáng)度息息相關(guān)。最終得出的結(jié)論,遷移率的平衡性在一定程度上并不是影響非富勒烯有機(jī)太陽能電池器件效率的決定因素。如果想進(jìn)一步提高非富勒烯有機(jī)太陽能電池的效率,可以從抑制雙分子復(fù)合等方面考慮。
[Abstract]:As a potential photovoltaic technology, organic / inorganic hybrid perovskite solar cells have many advantages, such as simple preparation process, low cost, high efficiency and so on, so they have attracted extensive attention. Organic thin film solar cells and polymer solar cells have unique advantages in preparing large area, light and flexible devices, and have also attracted much attention. The research contents of this paper mainly include the following aspects: 1. MAPb I _ 3 perovskite solar cells with reverse structure were prepared based on solution method, and the related photoelectric characteristics, such as steady-state charge transfer characteristics, were studied. The carrier mobility, defect density and charge recombination in perovskite solar cells were systematically studied by adjusting the thickness of MAPb I3 thin films. The results show that carrier mobility may not be the main limiting factor of photocurrent loss in MAPb I 3 solar cells, and defect state is an important reason affecting device performance. 2. Zn O nanoparticles were synthesized as electron transport layer / hole barrier layer and applied to PTB7-Th:PC71BM organic bulk heterojunction solar cells. The effects of dispersion agent and particle layer thickness on the efficiency and stability of Zn O nanoparticles were studied. The results show that, Zn O nanoparticles have a significant effect on the efficiency and stability of the device. Finally, under the optimized conditions, we increased the efficiency of PTB7-Th:PC71BM solar cells from 8.4% to 9.2%. The temperature response and bimolecule recombination mechanism of carrier mobility of three different solar cell devices PBDB-T:ITIC,PBDB-T:P (NDI2OD-T2) and PBDB-T:PC71BM were compared and studied. The results show that even in the case of carrier imbalance, PBDB-T:ITIC solar cells can still achieve a high efficiency of PCE of nearly 10%, which is mainly due to its high Jsc,. Moreover, the photoelectric characteristics of the device are not only related to its transmission performance, but also related to its charge recombination intensity. Finally, it is concluded that the balance of mobility is not the decisive factor affecting the device efficiency of non-fullerene organic solar cells to a certain extent. If we want to further improve the efficiency of non-fullerene organic solar cells, we can consider the inhibition of bimolecules and so on.
【學(xué)位授予單位】：新疆大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TM914.4

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 李永舫;;聚合物太陽能電池高效共軛聚合物給體和富勒烯受體光伏材料[J];高分子通報;2011年10期

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本文編號：2495032