SURFACE MORPHOLOGY AND MECHANICAL CHARACTERIZATION OF MOO3/PEDOT:PSS BLEND THIN FILMS FOR ORGANIC SOLAR CELLS AND LIGHT EMITTING DIODE APPLICATIONS
Abstract:
Organic solar cells (OSCs) and light-emitting diodes (LEDs) have gained significant attention due to their potential for low-cost and flexible electronic devices. The performance of these devices heavily relies on the properties of the active layers, particularly the surface morphology and mechanical characteristics. In this study, we investigate the surface morphology and mechanical properties of thin films composed of a blend of molybdenum trioxide (MoO3) and poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) for their application in OSCs and LEDs.
The MoO3/PEDOT:PSS blend thin films were fabricated using a spin-coating technique, and their surface morphology was examined using atomic force microscopy (AFM). The AFM analysis revealed the presence of a uniform and smooth film surface with low roughness, indicating good film quality. The surface morphology plays a crucial role in determining the optical and electrical properties of the thin films, affecting their device performance.
Furthermore, the mechanical properties of the MoO3/PEDOT:PSS thin films were evaluated using nanoindentation. The films exhibited excellent mechanical stability and showed a high resistance to deformation under applied loads. The measured hardness and elastic modulus values indicated the films’ ability to withstand mechanical stress, which is essential for their integration into flexible electronic devices.
The optical properties of the MoO3/PEDOT:PSS thin films were also investigated through UV-visible spectroscopy. The films exhibited a high optical transmittance in the visible range, indicating their potential for use as transparent electrodes in OSCs and LEDs.
Overall, this study provides valuable insights into the surface morphology and mechanical properties of MoO3/PEDOT:PSS blend thin films. The obtained results suggest that these films hold promise for application in OSCs and LEDs, where their desirable surface properties and mechanical stability contribute to enhanced device performance and durability. Further optimization of the film fabrication process and device integration techniques can lead to the development of efficient and reliable organic electronic devices.
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