Abstract
Deoxyribonucleic acid (DNA), as a genetic substance, has attracted much attention in genetic engineering and in nanotechnology. Due to several unique properties of DNA molecules, it also has high potential to be utilized in photonic devices. In this research, hybrid materials based on natural DNA extracted from Salmon sperm were exploited and were implemented in organic light-emitting devices. In the first part of this research, the preparation procedures of DNA hybrid materials, where DNA forms complexes with several surfactants, were described and the optical and electrical properties were characterized. From the experimental results, it shows that DNA hybrid materials have a decomposition temperature above 200℃, high optical transmittance around 96％ in 400nm~1100nm. Meanwhile, thin films with good quality can be formed on substrates using spin-coating technique. These properties of DNA hybrid materials are advantageous for photonic devices and exhibit the potential for practical implementation. In the second part of this research, DNA hybrid materials were explored in the implementation of organic light-emitting devices where the DNA hybrid material was incorporated as an interlayer for blocking electrons. The experimental results indicate that devices with DNA interlayer show enhanced performance with respect to its counterpart. By varying the material properties and multilayer structures, the device performance can be further optimized.