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摘要：近年来，由于对超薄膜的广泛需求，人们对超薄膜的研究和制备方法给到了极大的关注。常用的制备超薄膜的方法有三种：(1)、LB膜技术；(2)、基于化学吸附的自组装技术；(3)、静电交替沉积技术。其中，静电交替沉积技术因其不需要复杂的仪器、设备，膜的厚度可控和组分可调等诸多优点，在制备超薄膜中应用最广。出于对超薄膜的质量以及高效方面考虑，I-III-VI2族半导体薄膜在平时的使用中最为常见，而CuGaS2作为I-III-VI2三元硫化物铜基材料中具有代表性的一员，由于具有宽广的能带间隙，在绿光区的光发射装置中具有潜在的应用前景，同时在红外发射的产生和探测中也有着广阔的应用前景，因而人们也致力于开发其利用价值。在本实验中，我们将选择层层自组装方法制备CuGaS2超薄膜，并对CuGaS2超薄膜的光学性质、热稳定性等一些特性进行研究。31831
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毕业论文关键词：超薄膜，三元硫化物，层层自组装
Preparation and properties of ultra-thin film CuGaS2
Abstract：In recent years, due to the widespread demand for ultra-thin films, one of ultra-thin films of research and preparation for the great concern. The method for preparing ultrathin film of roughly three: (1), LB membrane technology; (2), based on self-assembly technology chemisorption; and (3), alternating electrostatic deposition techniques.Alternatively wherein the electrostatic deposition technology because no complicated apparatus, equipment, film thickness controllable and adjustable components and many other advantages, the most widely applied in the preparation of ultrathin films.Because ultra-thin films of quality and efficiency considerations, I-III-VI2 semiconductor film in the normal use of the most common, and CuGaS2 as I-III-VI2 three yuan sulfide copper-based material has a representative, asIt has a wide band gap, the light-emitting device having a green area of potential applications, while the generation and detection of infrared emission also has broad application prospects, and therefore it is also committed to the development of its value in use.In this experiment, we will choose CuGaS2 layer self-assembly method for producing ultra-thin films, and some of the features CuGaS2 studied the optical properties and thermal stability of ultra-thin films.
Keyword：ultra-thin films,ternary sulfide,layer self-assembly
目录
第一章 前言 1
1.1 引言 1
1.2 CuGaS2的性质 2
1.3 CuGaS2的制备方法 3
1.3.1 LB膜技术 4
1.3.2 基于化学吸附的自组装技术 4
1.3.3 静电交替沉积技术 4
1.4 实验参数对超薄膜形成的影响 5
1.4.1 超薄膜的层数 5
1.4.2 溶液浓度 5
1.5 CuGaS2超薄膜的应用 6
1.5.1 光学器件 6
1.5.2 作为太阳能材料 6
1.5.3 生物医药领域 8
1.5.4光催化领域 8
1.6 本论文研究目的与意义 9
第二章 实验部分 10
2.1实验试剂与仪器 10
2.2 表征仪器 10
2.3 CuGaS2层层自组装超薄膜的制备 10
2.4 CuGaS2超薄膜检测LNE水溶液 12
第三章 实验结果与总结 13
3.1 结果与讨论 13
3.1.1 CuGaS2超薄膜的表征与讨论 13
3.1.2层数对CuGaS2超薄膜光学性质的影响 14
3.1.3 CuGaS2超薄膜检测LNE 17
3.2 小结 17
参考文献 18
致谢 22