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THE EFFECT OF INFUSING TIO2 NANOPARTICLES ON THE OPTOELECTRONIC PROPERTIES OF MEHPPV THIN FILMS FOR OLED FABRICATION.
Abstract:
Organic light-emitting diodes (OLEDs) have gained significant attention in recent years due to their potential applications in display technology, lighting, and optoelectronic devices. In this study, we investigate the impact of infusing TiO2 nanoparticles on the optoelectronic properties of poly[2-methoxy-5-(2′-ethylhexyloxy)-1,4-phenylenevinylene] (MEHPPV) thin films for OLED fabrication.
TiO2 nanoparticles were synthesized using a sol-gel method and subsequently incorporated into the MEHPPV thin films using a spin-coating technique. The concentration of TiO2 nanoparticles in the MEHPPV matrix was varied to assess its effect on the optoelectronic properties. Optical characterization techniques such as ultraviolet-visible (UV-Vis) spectroscopy and photoluminescence (PL) spectroscopy were employed to evaluate the absorption and emission properties of the TiO2-infused MEHPPV films.
Our results demonstrate that the incorporation of TiO2 nanoparticles influenced the optoelectronic properties of the MEHPPV thin films. The UV-Vis spectroscopy analysis revealed a redshift in the absorption spectra, suggesting an enhanced light-harvesting capability of the TiO2-infused films. Additionally, the PL spectroscopy measurements indicated a decrease in the emission intensity and a slight blue shift in the emission peak, indicating improved charge transport and reduced recombination losses.
Furthermore, the electrical properties of the TiO2-infused MEHPPV films were evaluated using current-voltage (I-V) measurements. The results demonstrated improved charge carrier mobility and reduced leakage current in the TiO2-infused films compared to the pure MEHPPV films. These findings suggest that the addition of TiO2 nanoparticles can enhance the charge transport properties of MEHPPV thin films, which is crucial for efficient OLED operation.
In conclusion, our study highlights the significant impact of infusing TiO2 nanoparticles on the optoelectronic properties of MEHPPV thin films for OLED fabrication. The incorporation of TiO2 nanoparticles led to improved light absorption, charge transport, and reduced recombination losses, indicating the potential of TiO2-infused MEHPPV films for efficient OLED devices. These findings contribute to the development of novel materials and strategies for enhancing the performance of OLED technology.
THE EFFECT OF INFUSING TIO2 NANOPARTICLES ON THE OPTOELECTRONIC PROPERTIES OF MEHPPV THIN FILMS FOR OLED FABRICATION. GET MORE MATERIALS SCIENCE AND ENGINEERING
