STUDIES ON THE SYNTHESIS AND APPLICATIONS OF POLY(3-HEXYLTHIOPHENE)/INORGANIC NANOPARTICLE COMPOSITE ON PHOTOELECTRONIC DEVICE

• Main Authors: Shin-Wen Tang, 湯詩雯
• Other Authors: Chin-Tsou Kuo
• Format: Others
• Language: en_US
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/19161500982204751531

碩士 === 大同大學 === 化學工程研究所 === 91 === Studies on the synthesis and applications of poly(3-hexylthiophene)/inorganic nanoparticle on photoelectronic devices: light-emitting diode and photovoltaic cell are to be carried out. By in-situ polymerization, P3HT/organophilic-clay composite were synthesized by the oxidation coupling reaction of 3-hexylthiophene with anhydrous FeCl3 at room temperature. By X-ray diffraction analysis, the organophilic-clay was intercalated in the P3HT matrix. The FT-IR spectra indicated that P3HT synthesize with organophilic-clay by in-situ polymerization can increase the conjugation length of the intrinsic P3HT. Moreover, the UV-Vis spectra, which exhibit a red shift of the maximum absorption, are further confirmed to higher conjugation length. The polymer light-emitting diodes (PLEDs) fabricated with rm-P3HT blended with organophilic-clay have been investigated. It is found that the current density and brightness of Al/rm-P3HT blended with organophilic-clay/ITO increase with increasing the content of organophilic-clay, the turn-on voltage decreases with increasing the content of organophilic-clay, and the emission wavelength depends on applied voltages. On the other hand, the power conversion efficiency of single layer photovoltaic cell (PV-cell) fabricated with rm-P3HT blended with very small amounts of rr-P3HT and oxadiazole can be achieved 0.23% under white light illumination of 8.3 mW/cm2, which is fifty times higher than that of the intrinsic rm-P3HT device. The power conversion efficiency of PV cell fabricated by rr-P3HT blended with 5 wt% of TEOS can be achieved 0.28% under white light illumination of 8.3 mW/cm2.