基于铜氨络合物制备铜薄膜的工艺研究
发布时间:2019-04-16 14:05
【摘要】:在能源需求持续增长同时传统化石燃料又日渐枯竭的今天,太阳能以清洁、无污染和可再生的优点获得人们的广泛关注。光伏发电是将太阳能直接转换成电能的技术,发电成本高是制约光伏产业发展的主要因素。目前绝大多数是使用贵金属银制作太阳电池的金属电极,如果能够用金属铜来代替,将有助于降低光伏发电的成本进而推动光伏产业的发展。在本文中我们基于铜氨络合物制备出了铜薄膜,有望在太阳电池的电极上得到应用。 本文首先以甲酸和氨水的混合溶液为电解液,电解阳极铜制备出铜氨络合物溶液,然后蒸发结晶干燥得到铜氨络合物晶体。将铜氨络合物晶体、有机载体和粘结剂按照一定配比混合用球磨的方法制成铜氨络合物浆料,丝网印刷成膜。优选铜氨络合物含量为60%,优选球磨时间为20h。最后在真空环境下烧结,得到铜薄膜。 相关测试结果表明:铜氨络合物由C、H、O、N和Cu五种元素组成,化学式为Cu(NH3)2(COOH)2,具有两种可能的几何异构体。铜氨络合物的热分解温度大约在150-170℃的范围内,分解过程伴随着吸热。真空环境下热处理得到的铜薄膜成分是铜单质。 本文制备铜薄膜的方法热处理温度低,可以在多种衬底包括PI、PET等柔性衬底上成膜;丝网印刷成本低、效率高,能够满足大规模生产的需要;本文制备的铜薄膜除了代替银用作太阳电池的电极以外,在无线射频识别系统以及印刷电路板等许多方面都有较好的应用前景。
[Abstract]:Today, solar energy is widely concerned by the advantages of clean, pollution-free and renewable energy when the energy demand continues to grow and the traditional fossil fuels are increasingly dried up. PV power generation is a technology that directly converts solar energy into electric energy, and the power generation cost is the main factor that restricts the development of the photovoltaic industry. At present, most of the metal electrodes of the solar cell are made of noble metal silver, and if the metal copper can be used instead of the metal electrode, the cost of photovoltaic power generation can be reduced and the development of the photovoltaic industry can be promoted. In this paper, a copper thin film is prepared based on the copper-ammonia complex and is expected to be applied to the electrode of the solar cell. In this paper, the solution of copper-ammonia complex is prepared by using mixed solution of formic acid and ammonia water as electrolyte, and then the copper-ammonia complex crystal is obtained by evaporation and crystallization. a copper-ammonia complex slurry is prepared by mixing a copper-ammonia complex crystal, an organic carrier and a binder by a ball-milling method according to a certain proportion, and screen-printing to obtain the copper-ammonia complex slurry; the film preferably has a copper-ammonia complex content of 60%, preferably a ball milling time of 20, h. finally, sintering under a vacuum environment to obtain the copper thin The results show that the copper-ammonia complex is composed of five elements of C, H, O, N and Cu. The chemical formula is Cu (NH3)2 (COOH)2, which has two possible geometries. The thermal decomposition temperature of the copper-ammonia complex is in the range of about 150-170 & deg; C, and the decomposition process is accompanied the copper film component obtained by heat treatment under the vacuum environment is The method for preparing the copper thin film is low in heat treatment temperature, can be formed on a flexible substrate such as PI, PET and the like on a plurality of substrates; the screen printing cost is low, the efficiency is high, and the requirement of large-scale production can be met; and the copper thin film prepared by the method is used as a solar cell instead of silver in addition to the electrodes of the wireless radio frequency identification system and the printed circuit board,
【学位授予单位】:浙江大学
【学位级别】:硕士
【学位授予年份】:2014
【分类号】:TB383.2;TM914.42
[Abstract]:Today, solar energy is widely concerned by the advantages of clean, pollution-free and renewable energy when the energy demand continues to grow and the traditional fossil fuels are increasingly dried up. PV power generation is a technology that directly converts solar energy into electric energy, and the power generation cost is the main factor that restricts the development of the photovoltaic industry. At present, most of the metal electrodes of the solar cell are made of noble metal silver, and if the metal copper can be used instead of the metal electrode, the cost of photovoltaic power generation can be reduced and the development of the photovoltaic industry can be promoted. In this paper, a copper thin film is prepared based on the copper-ammonia complex and is expected to be applied to the electrode of the solar cell. In this paper, the solution of copper-ammonia complex is prepared by using mixed solution of formic acid and ammonia water as electrolyte, and then the copper-ammonia complex crystal is obtained by evaporation and crystallization. a copper-ammonia complex slurry is prepared by mixing a copper-ammonia complex crystal, an organic carrier and a binder by a ball-milling method according to a certain proportion, and screen-printing to obtain the copper-ammonia complex slurry; the film preferably has a copper-ammonia complex content of 60%, preferably a ball milling time of 20, h. finally, sintering under a vacuum environment to obtain the copper thin The results show that the copper-ammonia complex is composed of five elements of C, H, O, N and Cu. The chemical formula is Cu (NH3)2 (COOH)2, which has two possible geometries. The thermal decomposition temperature of the copper-ammonia complex is in the range of about 150-170 & deg; C, and the decomposition process is accompanied the copper film component obtained by heat treatment under the vacuum environment is The method for preparing the copper thin film is low in heat treatment temperature, can be formed on a flexible substrate such as PI, PET and the like on a plurality of substrates; the screen printing cost is low, the efficiency is high, and the requirement of large-scale production can be met; and the copper thin film prepared by the method is used as a solar cell instead of silver in addition to the electrodes of the wireless radio frequency identification system and the printed circuit board,
【学位授予单位】:浙江大学
【学位级别】:硕士
【学位授予年份】:2014
【分类号】:TB383.2;TM914.42
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