| Summary: | 碩士 === 國立臺南大學 === 電機工程學系碩博士班 === 102 === Polymer solar cells by the poly (3-hexylthiophene-2,5-diyl) (P3HT) as donor material and C60 derivatives [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) as the acceptor material of weight ratio is 1:1 by active layer. In this study, tetrachloroauric acid and sodium citrate preparation of Au nanoparticles as additives to enhance the power conversion efficiency by surface plasmon light absorption capacity of the solar cell, take advantage of this effect to retain more of the incident light enters into the reaction cell completely. The main purpose of this study was to identify tetrachloroauric acid and sodium citrate most appropriate ratio, and Au nanoparticles dispersed in the active layer without affecting work of the solar cell as a precondition to select the appropriate dispersing solvent.
Experimental results show the use of 30 nm Au nanoparticles dispersed in deionized water or ethanol mixed with the active layer of polymer solar cells, the efficiency from the original 1.44%, increased to 3.16% and 2.98%, taking into account the degradation of organic solar cell due to moisture generated effect, so that good dispersion of ethanol as compared to solvent. After adding zinc oxide nanoparticles, with the incorporation of buffer layer, the power conversion efficiency increased to 3.38%.
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