摘要
摘要
出国热钙钛矿太阳能电池因效率高、成本低而受到国内外研究者的广泛关注，其结构根据有无介孔层，可分为平面异质结钙钛矿太阳能电池结构、介观钙钛矿太阳能电池结构。介观钙钛矿太阳能电池中的介孔结构一般是运用TiO2颗粒或Al2O3颗粒，介孔结构的存在起到支架作用。鉴于TiO2颗粒是n型半导体，所以以TiO2颗粒为介孔层结构的另一个作用是传输电子。由于TiO2颗粒不利于电子快速传输，为了改善TiO2的电子传输能力，本文采用TiO2纳米纤维替代TiO2颗粒，以期提高TiO2介孔层的电子传输能力，利用静电纺丝法制备一维TiO2纳米纤维，研究TiO2纳米纤维的制备以及作为介孔层对钙钛矿太阳能电池性能的影响。为了进一步提高TiO2介孔层的电子传输能力，我们考虑在TiO2纳米纤维中施加微量还原氧化石墨烯（rGO），研究rGO/TiO2复合纳米纤维作为介孔层对钙钛矿太阳能电池性能的影响。具体研究工作如下：
1.采用溶胶-凝胶法制备TiO2致密层，探讨了旋转速度和旋转，干燥，退火的顺序对致密层薄膜形貌的影响，结果表明当以旋转速度为5000r/min进行旋凃，在80℃下的干燥箱中干燥2h，重复整个过程3次，再在管式炉中进行退火时得到的TiO2表面比较平整，致密。
2.利用两步法制备了钙钛矿层，研究了初始退火温度对钙钛矿层的影响。测试结果表明当初始退火温度
为55℃时，以一定的升温速率升至100℃，在100℃下退火30min，得到的钙钛矿各方面性能较好。
3.采用静电纺丝法制备了TiO2纳米纤维.，研究了不同厚度TiO2纳米纤维对钙钛矿太阳能电池效率的影响。结果表明当纺丝时间为5min时，电池的效率相对于平面异质结钙钛矿太阳能电池的效率最高，时间过长或过短都会导致钙钛矿太阳能电池效率的降低。
4.为了进一步提高TiO2纳米纤维的电子传输能力，我们在TiO2纳米纤维制备中施加了微量rGO，通过静电纺丝法获得了rGO/TiO2复合纳米纤维，设置纺丝时间为5min，研究rGO/TiO2复合纳米纤维作为介孔层对钙钛矿太阳能电池性能的影响，结果表明其效率相对平面异质结电池性能有明显提高。
关键词：介孔层，TiO2纳米纤维，rGO/TiO2复合纳米纤维，钙钛矿太阳能电池
生产部门I
Abstract
Abstract
Perovskite solar cells are highly concerned becau of their high efficiency and low cost.The structure of the perovskite solar cells can be divided into planar hetero junction perovskite solar cell
structure,mesoscopic perovskite solar cell structure.the mesoporous structure is ud by titanium oxide particles,alumina particles, mesoporous structure is a suttcold role.Since the titanium oxide particles are n-type miconductors,so the titanium oxide nano particles can also be ud to transmit electron.But the titanium oxide particles are not better to transmit electron,in order to make titanium oxide can be better to transmit electron,In this paper,titanium oxide nanofibers are ud to replace titanium oxide particles in order to improve the electron transport capacity of titanium oxide mesoporous layer.nanofibers are obtained by electrospinning.In order to improve the ability of titanium oxide nanofibers and to transmit electron well,we attempt the application of microscale reduced oxidation graphene in titanium oxide nanofibers,and study the effect of rGO /TiO2composite nanofibers as mesoporous layer on the properties of perovskite solar cells.Specific rearch work is as follows:
第一天用英语怎么说
1.The titanium oxide den layer was prepared by sol-gel method through the glue machine for spin coating.We discusd the effects of the rotation speed and the order of rotation,drying and annealing on the morphology of the den layer.When the rotation speed was5000r/min,the film was dried in a drying oven at80℃for2 hours,repeat the whole process3times,and put it in the tube furnace for annealing. Then get the titanium oxide is relatively smooth,den.
2.The perovskite layer was prepared by two-step method,we studied the effect of annealing temperature on perovskite layer.The test results show that when the initial annealing temperature is55o C with a certain heating rate ro to100℃and keep annealing at100o C for30min,the perovskite is better in all aspects of performance.
II
Abstract
3.TiO2nanofibers were prepared by electrospinning.We discusd the effects of different thickness of titanium oxide nanofibers on the efficiency of perovskite solar cells.The results show that when the spinning time is5min,the efficiency of the battery is higher relative to the plane heterojunction.perovskite solar cell efficiency would reduce according too long or too short time.
工程造价工作总结4.In order to further improve the electron transport capacity of titanium oxide nanofibers,we attempt the application of microscale reduced oxidation graphene in titanium oxide nanofibers,The rGO/TiO2composite nanofibers were obtained by electrospinning,the spinning time is5min,We studied the effect of rGO/ TiO2composite nanofibers as mesoporous layer on the properties of perovskite solar cells.The results show that the performance of the cell is higher than that of the plan
ar heterojunction.
Key Words:Mesoporous laye,Titanium oxide nanofibers,rGO/TiO2composite nanofibers,Perovskite solar cells
III
目录
目录
摘要...............................................................................................................II 1引言. (1)
1.1可再生能源 (1)
1.2太阳能电池研究背景 (1)
1.3太阳能电池的分类 (1)
1.3.1硅基太阳能电池 (2)
1.3.2多元化合物半导体太阳能电池 (3)
1.3.3有机聚合物太阳能电池 (3)
1.3.4染料敏化太阳能电池 (4)
1.4钙钛矿太阳能电池 (4)
1.4.1钙钛矿太阳能电池的结构 (4)
1.4.2钙钛矿太阳能电池的组成部分 (5)
1.4.3钙钛矿太阳能电池的研究现状 (7)
1.4.4钙钛矿太阳能电池的工作原理 (8)
1.5本论文主要研究内容与意义 (9)
清白拼音
2平面异质结无空穴传输层钙钛矿太阳能电池的制备及表征 (10)
2.1TiO2致密层的制备与表征 (10)
2.1.1TiO2的介绍 (10)
2.1.2TiO2致密层的制备 (11)
2.2钙钛矿层的制备与表征 (18)
2.2.1碘化铅的形貌分析 (20)
IV
目录
2.2.2钙钛矿层的形貌分析 (20)
2.2.3钙钛矿层的物相分析 (22)
2.2.4钙钛矿层的光致发光谱分析（PL） (23)
2.2.5钙钛矿吸收层吸光率的分析 (23)
2.3平面异质结钙钛矿太阳能电池的制备及表征 (25)
2.3.1平面异质结无空穴传输层钙钛矿太阳能电池的测试 (26)
2.4本章小结 (26)
3基于TiO2纳米纤维无空穴传输层钙钛矿太阳能电池的制备及表征28
3.1TiO2致密层的制备及表征 (28)
沟通的概念3.2TiO2纳米纤维的制备及表征 (29)
3.2.1静电纺丝技术概述 (29)
3.2.2TiO2纳米纤维的制备 (29)
3.2.3TiO2纳米纤维的表面形貌分析 (30)
3.2.4TiO2纳米纤维的物相分析 (32)
3.3钙钛矿层的制备及表征 (33)
3.3.1钙钛矿层的扫描电镜图片 (33)
3.3.2钙钛矿层吸收率分析 (35)
3.4基于TiO2纳米纤维无空穴传输层钙钛矿太阳能电池的制备及表征 (37)
羊水穿刺
3.4.1基于TiO2纳米纤维无空穴传输层钙钛矿太阳能电池的制备 (37)
3.5本章小结 (39)
目标管理的概念4基于复合rGO/TiO2纳米纤维在无空穴传输层钙钛矿太阳能电池
的应用及表征 (41)
4.1TiO2致密层的制备与表征 (41)
4.2rGO/TiO2纳米纤维的制备与表征 (41)
4.2.1 (41)
4.2.2rGO/TiO2纳米纤维的表征 (42)
V
