Optical and electrical modifications of a highly hydrophilic cellulose regenerated (RC) thin film as result of the inclusion in the film structure of cadmium-tellurium covered with mercaptosuccinic acid quantum dot nanoparticles (CdTe-MSA QDs) are analysed. CdTe-MSA QDs nanoparticles inclusion was performed by dip-coating of the RC film in an aqueous nano QDs solution, and two different immersion periods (2 h and 24 h) were considered. Impedance spectroscopy measurements, which can give information of changes in both film surface and bulk phase were performed for CdTe-MSA QDs inclusion confirmation as well as the estimation of electrical changes associated to QDs modification. Optical characterization of the original support and the CdTe-MSA(2 h) and CdTe-MSA(24 h) modified films was carried out by light transmittance and ellipsometry spectroscopy (at three different take-off angles). According to these results, the inclusion of CdTe-MSA QDs practically does not reduce the high transparency of the film support, but it increases the reflexion index and extinction coefficient of both modified films. Moreover, fluorescence and XPS measurements were also performed for more complete information on the effect caused by the presence of CdTe-MSA QDs in the cellulosic film. A comparison of changes in physicochemical properties of the cellulosic/CdTe-MSA QDs films and those modified with other nanoparticle quantum dots is also performed.

分析了高亲水性纤维素再生（RC）薄膜的光学和电学修饰，该修饰是由于覆盖了巯基琥珀酸量子点纳米粒子（CdTe-MSA QD）的镉-碲的薄膜结构所致。通过在水性纳米QDs溶液中浸涂RC膜来完成CdTe-MSA QDs纳米颗粒的包裹，并考虑了两个不同的浸入时间（2 h和24 h）。进行了CdTe-MSA QD夹杂物确认以及与QDs修饰相关的电学变化估计的阻抗光谱测量，可以提供薄膜表面和块相的变化信息。通过透光率和椭圆偏振光谱法（在三个不同的起飞角）对原始支撑物和CdTe-MSA（2 h）和CdTe-MSA（24 h）改性膜进行光学表征。根据这些结果，实际上，加入CdTe-MSA QD不会降低膜载体的高透明性，但会增加两种改性膜的反射指数和消光系数。此外，还进行了荧光和XPS测量，以获取有关纤维素膜中CdTe-MSA QD的存在所引起的影响的更完整信息。还进行了纤维素/ CdTe-MSA QDs膜和经其​​他纳米粒子量子点修饰的膜的理化性质变化的比较。实际上，包含CdTe-MSA QD并不会降低膜载体的高透明性，但是会增加两种改性膜的反射指数和消光系数。此外，还进行了荧光和XPS测量，以获取有关纤维素膜中CdTe-MSA QD的存在所引起的影响的更完整信息。还进行了纤维素/ CdTe-MSA QDs膜和经其​​他纳米粒子量子点修饰的膜的理化性质变化的比较。实际上，包含CdTe-MSA QD并不会降低膜载体的高透明性，但是会增加两种改性膜的反射指数和消光系数。此外，还进行了荧光和XPS测量，以获取有关纤维素膜中CdTe-MSA QD的存在所引起的影响的更完整信息。还比较了纤维素/ CdTe-MSA QDs薄膜和经其他纳米粒子量子点修饰的薄膜的理化性质变化。