| Summary: | 碩士 === 國立中山大學 === 光電工程學系研究所 === 106 === In this study, we produce the compound silver nanowires electrodes with silver nanowires and PEDOT:PSS (PH1000). The electrodes would apply in organic light emitting diode (OLED), and look forward to replace indium tin oxide (ITO). In the future, the hybrid film could be used to manufacture the flexible organic electro-optic devices.
To enhance the conductivity of the compound electrodes, we use dimethyl sulfoxide (DMSO) to treat the solvent of compound silver nanowires electrodes by soaking method. Also, to reduce the roughness of the compound electrodes, we utilize PDMS to solve the roughness of compound silver nanowires electrodes via transferred method. At last, we could use the thin film electrodes to produce OLED.
In this research, we investigated the sheet resistance of compound electrodes, optical transmittance, surface roughness and surface morphology. Then, we found that there is the best hydrophilicity at PDMS film by ozone treatment sixty minutes. In this experiment, the appropriates volume ratio of silver nanowires aqueous solution, and PEDOT:PSS (PH1000) is 1：19 . The thin film produced by this solvent get great performance, sheet resistance 108 (Ω/sq), keeping the average transmittance achieve 83 % in the wavelength of visible light, and the surface RMS is lower than 10 nm.
Via measurement results of organic electro-optic devices, we found that even though the surface RMS of compound silver nanowires electrodes is about 1.8 nm, the problem of leakage is still existence. Consequently, the process of compound silver nanowires electrodes is not only care about the conductivity and optical transmittance, but also have to solve the problem of leakage on account of the silver nanowires overlap.
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