鈣鈦礦太陽能電池制備工藝及其界面修飾的研究
發(fā)布時間：2018-10-05 14:27
【摘要】：面對日益嚴重的能源短缺和環(huán)境污染問題,清潔無污染的新能源開發(fā)已成為解決當今社會能源需求的重大課題之一。其中太陽能以其干凈、安全、無污染和儲量巨大等諸多優(yōu)點,吸引了眾多研究人員的目光,據(jù)此發(fā)展起來的電池器件已成為了電力能源中最為重要的一員。目前,傳統(tǒng)的晶硅電池器件產品已實現(xiàn)了批量化生產,不過其產品制造原材料價格較高,十分不利于其應用的廣泛性。此時,相關科研人員不得不逐漸將目光轉移到了性能優(yōu)良、價格低廉的新型電池器件上來。近年來,基于有機無機雜化鈣鈦礦材料制備的太陽能電池器件,由于其具有豐富的原料來源、低廉的生產成本、多樣的制備工藝和較高的轉換效率等優(yōu)點,而受到了眾多研究者們的青睞,并已獲得了飛躍式的發(fā)展。在鈣鈦礦太陽能電池器件制備過程中,相比于其他器件類型,平面類型電池器件具有器件制備工藝簡單,材料價格低廉,光電性能效果好等眾多優(yōu)點,因此,本文將此類型電池器件作為了文章的主要研究對象,其中采用MAPbI_3作為器件的光吸收層材料。具體研究內容如下:1、通過對鈣鈦礦太陽能電池器件的MAPbI_3光吸收層分別利用二步溶液旋涂法、二步旋涂-浸漬法、雙源共蒸發(fā)法、氣相輔助溶液法進行了制備;并對各個制備工藝得出的電池器件進行各方面測試表征,分析討論了各個制備工藝的優(yōu)缺點。2、采用了高沸點的極性材料二甲基亞砜(DMSO)對電池結構的陽極界面進行修飾,研究了經DMSO修飾前后,陽極界面層PEDOT:PSS薄膜透光性、表面形貌及其電導率的變化,并分析討論了修飾前后鈣鈦礦太陽能電池光電性能的變化趨勢,得出了修飾后器件可以獲得更優(yōu)光電性能的結論。3、由于鈣鈦礦太陽能電池器件的MAPbI_3光吸收層對水汽、氧氣較敏感,受到水汽和氧氣的侵蝕會產生分解,進而導致器件的性能下降。針對這種問題,在實驗過程中通過采用蒸鍍一層BCP薄層作為器件的陰極界面修飾層,一方面可以降低電子和空穴在電池內部的復合幾率,提升了電池的光電性能;另一方面增強了電池器件對水汽的阻隔能力,降低了水汽對鈣鈦礦太陽能電池光吸收層的破壞,增加了器件的穩(wěn)定性。
[Abstract]:Facing the increasingly serious problems of energy shortage and environmental pollution, clean and non-polluting new energy development has become one of the most important issues to solve the energy demand of today's society. Solar energy has attracted the attention of many researchers because of its many advantages, such as clean, safe, pollution-free and huge reserves. Based on this, the battery device has become the most important member in power energy. At present, the traditional silicon battery devices have been mass produced, but the price of raw materials is high, which is not conducive to its wide application. At this time, the researchers have to focus on the performance of the new low-cost battery devices. In recent years, solar cell devices based on organic-inorganic hybrid perovskite materials have many advantages, such as abundant raw materials, low production cost, various preparation processes and high conversion efficiency. It has been favored by many researchers and has been developed by leaps and bounds. In the fabrication process of perovskite solar cell devices, compared with other device types, planar type battery devices have many advantages, such as simple fabrication process, low cost of materials, good photoelectric performance and so on. In this paper, this type of battery device is considered as the main research object, in which MAPbI_3 is used as the optical absorption layer material. The specific research contents are as follows: 1. The MAPbI_3 photoabsorption layer of perovskite solar cell is prepared by two-step solution spin-coating, two-step spin-coating, two-source co-evaporation and gas-assisted solution method, respectively. The advantages and disadvantages of each preparation process were analyzed and discussed. The anode interface of the battery structure was modified by high boiling point polarity material dimethyl sulfoxide (DMSO). The changes of optical transmittance, surface morphology and electrical conductivity of PEDOT:PSS film in anodic interface layer before and after modification by DMSO were studied. The change trend of photovoltaic properties of perovskite solar cells before and after modification was analyzed. It is concluded that the modified device can obtain better photoelectric performance. Because the MAPbI_3 photoabsorption layer of the perovskite solar cell device is sensitive to water vapor and oxygen, it will decompose when eroded by water vapor and oxygen. In turn, the performance of the device is reduced. In order to solve this problem, a thin layer of BCP is used as the cathode interface modification layer in the experiment. On the one hand, the recombination probability of electron and hole in the battery can be reduced, and the photoelectric performance of the battery can be improved. On the other hand, it enhances the barrier ability of the battery device to water vapor, reduces the damage of water vapor to the photoabsorption layer of perovskite solar cell, and increases the stability of the device.
【學位授予單位】：河北大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TM914.4
本文編號：2253747
[Abstract]:Facing the increasingly serious problems of energy shortage and environmental pollution, clean and non-polluting new energy development has become one of the most important issues to solve the energy demand of today's society. Solar energy has attracted the attention of many researchers because of its many advantages, such as clean, safe, pollution-free and huge reserves. Based on this, the battery device has become the most important member in power energy. At present, the traditional silicon battery devices have been mass produced, but the price of raw materials is high, which is not conducive to its wide application. At this time, the researchers have to focus on the performance of the new low-cost battery devices. In recent years, solar cell devices based on organic-inorganic hybrid perovskite materials have many advantages, such as abundant raw materials, low production cost, various preparation processes and high conversion efficiency. It has been favored by many researchers and has been developed by leaps and bounds. In the fabrication process of perovskite solar cell devices, compared with other device types, planar type battery devices have many advantages, such as simple fabrication process, low cost of materials, good photoelectric performance and so on. In this paper, this type of battery device is considered as the main research object, in which MAPbI_3 is used as the optical absorption layer material. The specific research contents are as follows: 1. The MAPbI_3 photoabsorption layer of perovskite solar cell is prepared by two-step solution spin-coating, two-step spin-coating, two-source co-evaporation and gas-assisted solution method, respectively. The advantages and disadvantages of each preparation process were analyzed and discussed. The anode interface of the battery structure was modified by high boiling point polarity material dimethyl sulfoxide (DMSO). The changes of optical transmittance, surface morphology and electrical conductivity of PEDOT:PSS film in anodic interface layer before and after modification by DMSO were studied. The change trend of photovoltaic properties of perovskite solar cells before and after modification was analyzed. It is concluded that the modified device can obtain better photoelectric performance. Because the MAPbI_3 photoabsorption layer of the perovskite solar cell device is sensitive to water vapor and oxygen, it will decompose when eroded by water vapor and oxygen. In turn, the performance of the device is reduced. In order to solve this problem, a thin layer of BCP is used as the cathode interface modification layer in the experiment. On the one hand, the recombination probability of electron and hole in the battery can be reduced, and the photoelectric performance of the battery can be improved. On the other hand, it enhances the barrier ability of the battery device to water vapor, reduces the damage of water vapor to the photoabsorption layer of perovskite solar cell, and increases the stability of the device.
【學位授予單位】：河北大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TM914.4
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